Lee ebe Akara Ngosi ikuku si


[[Usòrò:Sha1993_smog_wkpd.jpg|thumb|Anwụrụ ọkụ na Shanghai, China, Disemba, 1993 ihe atụ nke ọnọdụ ikuku a na-ahụkarị dị ka nke na-adịghị mma]]
[[Usòrò:25August_2007_Greek_fires.jpg|thumb|Foto Satellite e dere ede na-egosi anwụrụ ọkụ sitere na ọkụ ọhịa na Gris, na-akpata elu nke AQI n'okpuru ifufe]]
 
Ụlọ ọrụ gọọmentị na-eji akara ngosi ikuku nke a na akpobere di ka ('''AQI''') eme ihe iji gwa ọha na eze etu ikuku si emetọ ugbu a ma ọ bụ etu a na-atụ anya na ọ ga-abụ.<ref>{{Cite web|url=http://www.airnow.gov/index.cfm?action=airnow.international|title=International Air Quality|accessdate=20 August 2015|archiveurl=https://web.archive.org/web/20180612162706/https://www.airnow.gov/index.cfm?action=airnow.international|archivedate=12 June 2018}}</ref><ref>{{Cite web|title=NOAA's National Weather Service/Environmental Protection Agency - United States Air Quality Forecast Guidance|url=https://airquality.weather.gov/|accessdate=2021-04-28|work=airquality.weather.gov}}</ref><ref>{{Cite web|url=https://www.gmes-atmosphere.eu/services/raq/raq_nrt/|title=MACC Project - European Air Quality Monitoring and Forecasting|accessdate=2014-10-12|archiveurl=https://web.archive.org/web/20141018213242/https://www.gmes-atmosphere.eu/services/raq/raq_nrt/|archivedate=2014-10-18}}</ref> A na-enweta ozi AQI site na ịhazi nkezi ọgụgụ site na ihe mmetụta ikuku, nke nwere ike ịbawanye n'ihi okporo ụzọ ụgbọ ala, ọkụ ọhịa, ma ọ bụ ihe ọ bụla nwere ike ịkawanye mmetọ ikuku. Ihe mmetọ ndị a nwalere gụnyere ndịa na bekee; particulates, ozone, nitrogen dioxide, carbon monoxide, sulphur dioxide, n'etiti ndị ọzọ.

Ihe ize ndụ ahụike ọha na eze na-abawanye ka AQI na-arị elu, karịsịa na-emetụta ụmụaka, ndị agadi, na ndị nwere nsogbu iku ume ma ọ bụ nke obi. N'oge ndị a, ụlọ ọrụ gọọmentị na-agba ndị mmadụ ume belata mmega ahụ n'èzí, ma ọ bụ ọbụna zere ịpụ kpamkpam. A pụkwara ịtụ aro iji ihe nkpuchi ihu dị ka ihe nkpuchi ákwà.

Mba dị iche nwere akara ngosi nke ikuku nke ha, nke kwekọrọ na ụkpụrụ dị iche iche nke ikuku. Ụfọdụ n'ime ndị a nke a na akpọ ndịa na bekee ; Air Quality Health Index nke [[Kánada|Canada]], Malaysia's Air Pollution Index, na Singapore's Pollutant Standards Index.

== Nchịkọta ==
[[Usòrò:Edinburgh_air_quality_measurement_station_dsc06786.jpg|thumb|Ebe a na-atụle ikuku dị na Edinburgh, Scotland]]
Nchịkọta nke  nkpobere ya bụ ;AQI chọrọ ikuku na-emetọ ikuku n'ime oge a kapịrị ọnụ, nke a nwetara site na nyocha ikuku ma ọ bụ ihe nlereanya. N'ozuzu, nkenke na oge na-anọchite anya  nke ikuku mmetọ. A na-achọpụta mmetụta ahụike kwekọrọ na ọgwụ a nyere site na nyocha ọrịa na-efe efe.<ref>{{Cite web|url=http://www.epa.gov/risk_assessment/dose-response.htm|title=Step 2 - Dose-Response Assessment|date=26 September 2013|accessdate=20 August 2015}}</ref> Mmetọ ikuku dịgasị iche iche n'ike, ọrụ eji gbanwee site na mmetọ ikuku gaa na AQI dịgasị site na mmegharị. A na-ejikarị ọnụ ọgụgụ ikuku ya n'usoro. A na-enye mpaghara ọ bụla nkọwa, koodu agba, na ndụmọdụ ahụike ọha na eze.

AQI nwere ike ịbawanye n'ihi mmụba nke ikuku. Dị ka ọmụmaatụ, n'oge okporo ụzọ na-agafe agafe ma ọ bụ mgbe ọkụ na-ere n'oké ọhịa ma ọ bụ site na enweghị mgbagwoju anya nke ikuku na-emetọ ikuku. [[Ikuku na-akwụsị|Mmiri]] na-agbanwe agbanwe, nke na-esikarị na anticyclone, mgbanwe okpomọkụ, ma ọ bụ ọsọ ikuku dị ala na-eme ka mmetọ ikuku nọrọ n'ógbè, na-eduga na nnukwu mmetọ nke mmetọ, mmeghachi omume kemịkal n'etiti mmetọ ifufe na ọnọdụ ihu igwe.<ref>{{Cite web|author=Myanmar government|date=2007|url=http://www.kjc.gov.my/english/education/weather/haze01.html|accessdate=2007-02-11|title=Haze|archivedate=27 January 2007|archiveurl=https://web.archive.org/web/20070127214023/http://www.kjc.gov.my/english/education/weather/haze01.html}}</ref>
[[Usòrò:SignboardAirQualityHouston.JPG|thumb|Ihe ngosi na Gulfton, Houston na-egosi elekere ozone]]
N'ụbọchị a na-ebu amụma na AQI ga-ebuli elu n'ihi mmetọ nke ụmụ irighiri ihe, ụlọ ọrụ ma ọ bụ ụlọ ọrụ ahụike ọha nwere ike:

* dụọ ndị otu dị nro, dị ka ndị agadi, ụmụaka, na ndị nwere nsogbu iku ume ma ọ bụ nke obi, ọdụ iji zere ịrụsi ọrụ ike n'èzí.<ref>{{Cite web|url=http://www.lung.org/healthy-air/outdoor/air-quality-index.html|title=Air Quality Index - American Lung Association|work=American Lung Association|accessdate=20 August 2015|archiveurl=https://web.archive.org/web/20150828143922/http://www.lung.org/healthy-air/outdoor/air-quality-index.html|archivedate=28 August 2015}}</ref>
* kwupụtara "ụbọchị ọrụ" iji gbaa mbọ iji mee ihe n'afọ ofufo iji belata ikuku, dị ka  iji njem ọha na eze.<ref>{{Cite web|url=http://www.sparetheair.org/Make-a-Difference/Spare-the-Air-Every-Day/Summer.aspx|title=Spare the Air - Summer Spare the Air|accessdate=20 August 2015|archiveurl=https://web.archive.org/web/20180611003730/http://sparetheair.org/Make-a-Difference/Spare-the-Air-Every-Day/Summer.aspx|archivedate=11 June 2018}}</ref>
* na-atụ aro iji ihe nkpuchi iji gbochie obere ihe ịbanye n'akpa ume<ref>{{Cite web|url=https://www.moh.gov.sg/content/moh_web/home/pressRoom/Current_Issues/2014/haze/faq--use-of-masks-and-availability-of-masks.html|title=FAQ: Use of masks and availability of masks|accessdate=20 August 2015|archiveurl=https://web.archive.org/web/20180622004913/https://www.moh.gov.sg/content/moh_web/home/pressRoom/Current_Issues/2014/haze/faq--use-of-masks-and-availability-of-masks.html|archivedate=2018-06-22}}</ref>

N'oge ikuku dị njọ, dị ka [[ihe omume mmetọ ikuku]], mgbe AQI na-egosi na ikpughe siri ike nwere ike imebi ahụike ọha na eze, ụlọ ọrụ nwere ike ịkpọtụrụ atụmatụ mberede nke na-enye ha ohere inye iwu ka ndị isi na-emepụta ihe (dị ka ụlọ ọrụ na-ere ọkụ) belata ikuku ruo mgbe ọnọdụ dị ize ndụ belatara.

Ọtụtụ mmetọ ikuku enweghị AQI jikọtara ya. Ọtụtụ mba na-enyocha ozone dị n'ala, nke akpọrọ ihe ndịa na bekee particulates, sulfur dioxide, carbon monoxide na nitrogen dioxide, ma gbakọọ akara ikuku maka mmetọ ndị a.<ref name="aqi_basic">{{Cite web|url=http://www.airnow.gov/index.cfm?action=aqibasics.aqi|title=Air Quality Index (AQI) - A Guide to Air Quality and Your Health|date=9 December 2011|accessdate=8 August 2012|publisher=US EPA|archiveurl=https://web.archive.org/web/20180618144741/https://airnow.gov/index.cfm?action=aqibasics.aqi|archivedate=18 June 2018}}</ref>

Nkọwa nke AQI na otu mba na-egosipụta okwu gbara mmepe nke ụkpụrụ ikuku nke mba ahụ gburugburu na mba ahụ.<ref>{{Cite web|url=https://www.wsj.com/articles/the-epas-latest-threat-to-economic-growth-1407970689|title=The EPA's Latest Threat to Economic Growth|author=Jay Timmons|date=13 August 2014|work=WSJ|accessdate=20 August 2015}}</ref>  Ebe nrụọrụ weebụ na-enye ohere ka ụlọ ọrụ gọọmentị n'ebe ọ bụla n'ụwa nyefee data nlekota ikuku ha n'oge maka ngosipụta site na iji nkọwa a na-ahụkarị nke akara ikuku dị n'oge na-adịbeghị anya.<ref>{{Cite web|url=http://waqi.info/|title=World Air Quality Index|accessdate=20 August 2015}}</ref>

== Ihe ngosi site na ebe ==

=== Australia ===
Nke ọ bụla n'ime steeti na ókèala nke [[Ostraliya|Australia]] na-ahụ maka nlekota ikuku na mbipụta data dị ka  ụkpụrụ nke akpọrọ National Environment Protection (Ambient Air Quality) Measure (NEPM) si dị.<ref>{{Cite web|url=https://www.legislation.gov.au/Details/F2016C00215|title=National Environment Protection (Ambient Air Quality) Measure|accessdate=1 January 2020}}</ref>

Steeti na mpaghara ọ bụla na-ebipụta data ikuku maka ebe nlekota nke ọ bụla, ọtụtụ steeti na mpaghara na-ebipụtakwa ndepụta ikuku maka ebe nyocha ọ bụla.

N'ofe Australia, a na-eji usoro ikuku na-agbanwe agbanwe, na-eji akara dị mfe ebe otú narị na-anọchite anya ọkwa kachasị maka mmetọ ọ bụla, dị ka NEPM setịpụrụ. Ụkpụrụ ndị a kachasị elu bụ:
{| class="wikitable" style="text-align:left;"
!Ihe na-emetọ ikuku
!Nkezi oge
!Ọnọdụ kachasị elu
|-
|Carbon monoxide
|awa asatọ
|9 ppm
|-
| rowspan="2" |Naịtrogen dioxide
|1 awa
|0.12 ppm
|-
|1 afọ
|0.03 ppm
|-
| rowspan="2" |Ozone
|1 awa
|0.10 ppm
|-
|awa anọ
|0.08ppm
|-
| rowspan="3" |Sulphur dioxide
|1 awa
|0.20 ppm
|-
|1 ụbọchị
|0.08 ppm
|-
|1 afọ
|0.02 ppm
|-
|Onye ndu
|1 afọ
|0.50 μg/m3
|-
| rowspan="2" |PM 10
|1 ụbọchị
|50 μg/m3
|-
|1 afọ
|25 μg/m3
|-
| rowspan="2" |PM 2.5
|1 ụbọchị
|25 μg/m3
|-
|1 afọ
|8 μg/m3
|}
Nkọwapụta ikuku (AQI) maka ebe ọ bụla bụ naanị nke kachasị elu nke ọnụọgụ ikuku maka mmetọ ọ bụla a na-enyocha na ebe ahụ.

Òtù AQI, na ndụmọdụ ahụike maka nke ọ bụla:<ref>{{Cite web|url=https://www.environment.nsw.gov.au/topics/air/understanding-air-quality-data/air-quality-index|title=About the Air Quality Index (NSW)|accessdate=1 January 2020}}</ref>
{| class="wikitable mw-collapsible"
!AQI
!Nkọwa
!Ndụmọdụ ahụike
|-
| style="text-align:center;" |0-33
| style="background:#338ce7; text-align:center; color:#000;" |Ọ dị nnọọ mma
|Nwee obi ụtọ maka ihe omume
|-
| style="text-align:center;" |34-66
| style="background:#37b13c; text-align:center; color:#000;" |Eziokwu
|Nwee obi ụtọ maka ihe omume
|-
| style="text-align:center;" |67-99
| style="background:#e8dd28; text-align:center; color:#000;" |Ezigbo Ihe
|Ndị na-emetụta mmetọ ikuku n'ụzọ a na-adịghị ahụkebe: Na-eme atụmatụ ihe omume ndị siri ike n'èzí mgbe ikuku dị mma.
|-
| style="text-align:center;" |100-149
| style="background:#f06520; text-align:center; color:#000;" |Ndị ogbenye
|Ìgwè ndị nwere mmetụta: Wepụ ma ọ bụ degharịa ihe omume ndị siri ike n'èzí
|-
| style="text-align:center;" |150-200
| style="text-align:center; background:#8e1b66;color:white" |Ndị dara ogbenye nke ukwuu
|Ìgwè ndị na-emetụ n'ahụ: Zere ihe omume ndị siri ike n'èzí
Onye ọ bụla: Wepụ ma ọ bụ gbanwee ihe omume ndị siri ike n'èzí
|-
| style="text-align:center;" |200+
| style="text-align:center; background:#c51515;color:white" |Ihe Ndị Dị Iche Iche
|Ìgwè ndị na-emetụ n'ahụ: Zere ihe omume anụ ahụ niile n'èzí
Onye ọ bụla: Nke a na-ebelata n'ụzọ dị ịrịba ama na mmega ahụ n'èzí
|-
|}

=== Canada ===
A kọọrọ ịdị mma ikuku na Canada ruo ọtụtụ afọ na mpaghara maka nke akpọrọ Air Quality Indices (AQIs). N'ụzọ dị ịrịba ama, ụkpụrụ AQI na-egosipụta ebumnuche njikwa ikuku, nke dabeere na ọnụego ikuku kachasị ala, karịa nchegbu maka ahụike mmadụ. Air Quality Health Index (AQHI) bụ ihe e mere iji nyere aka ịghọta mmetụta nke ikuku na ahụike. Ọ bụ ngwá ọrụ nchebe ahụike nke a na-eji eme mkpebi iji belata mkpirikpi mkpuchi ikuku site na ịgbanwe ọkwa ọrụ n'oge mmụba nke mmetọ ikuku. Air Quality Health Index dị ka e si kpo ya na bekee na-enyekwa ndụmọdụ banyere otu esi emeziwanye ikuku site n'ịtụ aro mgbanwe omume iji belata akara gburugburu ebe obibi. Ndepụta a na-elebara ndị na-emetụta mmetọ ikuku anya. Ọ na-enye ha ndụmọdụ banyere otu esi echebe ahụike ha n'oge ikuku dị mma metụtara ihe ize ndụ ahụike dị ala, nke dị nro, nke dị elu na nke dị elu.

AQHI na-enye nọmba site na mbu ruo Iri ọnụ Ọgụgụ dịrị ga ba iji gosipụta ọkwa nke ihe ize ndụ ahụike metụtara ogo ikuku mpaghara. Mgbe ụfọdụ, mgbe mmetọ ikuku dị elu karịa, ọnụ ọgụgụ ahụ nwere ike ịgafe iri AQHI na-enye uru ikuku dị n'ógbè ahụ yana amụma ikuku dị elu maka taa, abalị, na echi, ma na-enye ndụmọdụ ahụike metụtara ya.<ref>{{Cite web|url=http://www.ec.gc.ca/cas-aqhi/default.asp?lang=En&n=79A8041B-1|title=Environment Canada - Air - AQHI categories and explanations|publisher=Ec.gc.ca|date=2008-04-16|accessdate=2011-11-11}}</ref>
{| style="margin:auto; background:Black; color:White;"
| style="text-align:center; width:35px; height:35px; background:#0cf;" |'''1'''
| style="text-align:center; width:35px; height:35px; background:#09c;" |'''2'''
| style="text-align:center; width:35px; height:35px; background:#069;" |'''3'''
| style="text-align:center; width:35px; height:35px; background:#ff0;" |'''4'''
| style="text-align:center; width:35px; height:35px; background:#fc0;" |'''5'''
| style="text-align:center; width:35px; height:35px; background:#f93;" |'''6'''
| style="text-align:center; width:35px; height:35px; background:#f66;" |'''7'''
| style="text-align:center; width:35px; height:35px; background:#f00;" |'''8'''
| style="text-align:center; width:35px; height:35px; background:#c00;" |'''9'''
| style="text-align:center; width:35px; height:35px; background:#900;" |'''10'''
| style="text-align:center; width:35px; height:35px; background:#600;" |'''+'''
|}
{| style="margin:auto; background:white; color:black;"
|'''Ihe ize ndụ:'''
|Ala (1-3)
|Ọdịda (4-6)
|Elu (7-10)
|Ọ dị nnọọ elu (karịa 10)
|}
{| class="wikitable"
!Ihe ize ndụ ahụike
!Nkọwa Ahụike Air Quality
! colspan="2" style="text-align: center;" |Ozi Ahụike
|-
!
!
!'''Ndị nọ n'ihe ize ndụ'''
!'''*Ọnụ ọgụgụ Ndị bi na ya'''
|-
|'''Ala Dị Ala'''
|'''1-3'''
|'''Nwee obi ụtọ''' na ihe omume gị na-eme n'èzí.
|Ọnọdụ ikuku dị mma maka '''ihe''' omume n'èzí
|-
|'''Ịdị nro'''
|'''4-6'''
|'''Tụlee''' ịbelata ma ọ bụ gbanwee ihe omume siri ike n'èzí ma ọ bụrụ na ị na-enwe mgbaàmà.
|'''Ọ dịghị mkpa ịgbanwe''' ihe omume gị na-eme n'èzí ọ gwụla ma ị nwere mgbaàmà dịka ụkwara na mgbu akpịrị.
|-
|'''Elu'''
|'''7-10'''
|'''Mbelata''' ma ọ bụ gbanwee ihe omume siri ike n'èzí. Ụmụaka na ndị agadi kwesịkwara ime ka ọ dị mfe.
|'''Tụlee''' anya belata ma ọ bụ gbanwee ihe omume siri ike n'èzí ma ọ bụrụ na ị nwere mgbaàmà dịka ụkwara na mgbu akpịrị.
|-
|'''Dị nnọọ elu'''
|'''N'elu 10'''
|'''Zere''' ihe omume siri ike n'èzí. Ụmụaka na ndị agadi kwesịkwara izere mmega ahụ n'èzí.
|'''Mbelata''' ma ọ bụ gbanwee ihe omume siri ike n'èzí, ọkachasị ma ọ bụrụ na ị nwere mgbaàmà dịka ụkwara na mgbu akpịrị.
|}

=== China ===

==== Hong Kong ====
Na ọnwa Disemba 30, afọ 2013, [[Hong Kong]] jiri ndepụta ọhụrụ a na-akpọ Air Quality Health Index dochie Air Pollution Index.<ref>{{Cite web|url=http://hsu.me/2012/03/chinas-new-air-quality-index-how-does-it-measure-up/|title=China's new Air Quality Index: How does it measure up?|accessdate=8 February 2014|author=Hsu|first=Angel|archiveurl=https://web.archive.org/web/20130717033733/http://hsu.me/2012/03/chinas-new-air-quality-index-how-does-it-measure-up/|archivedate=July 17, 2013}}</ref> Ndepụta a, nke Ngalaba Na-ahụ Maka Nchebe Gburugburu Ebe Obibi kọrọ, na-atụle na otu ruo iri dịrị ga ba ma na-atụ aro ihe anọ na-emetọ ikuku: nke bu ozone; nitrogen dioxide; sulphur dioxide na ihe particulate (gụnyere PM10 na PM2.5). Maka awa ọ bụla a nyere, a na-agbakọ AQHI site na ngụkọta nke pasentị karịrị akarị nke ihe ize ndụ nke ịbanye n'ụlọ ọgwụ kwa ụbọchị nke sitere na awa atọ na-agagharị nkezi nke mmetọ anọ a. A na-achịkọta AQHIs n'ime ụdị ihe ize ndụ ahụike ise nke AQHI na ndụmọdụ ahụike enyere:<ref>{{Cite web|url=http://www.gov.hk/en/residents/environment/air/aqhi.htm|title=Air Quality Health Index|accessdate=9 February 2014|publisher=Government of the Hong Kong Special Administrative Region}}</ref>
{| class="wikitable"
!Ụdị ihe ize ndụ ahụike
!AQHI
|-
| rowspan="3" style="text-align:center; background:#4db748;color:#000"|Ala Dị Ala
|1
|-
|2
|-
|3
|-
| rowspan="3" style="text-align:center; background:#f9a61a;color:#000"|Ịdị nro
|4
|-
|5
|-
|6
|-
| style="text-align:center; background:#ed1b24;color:#fff"|Elu
|7
|-
| rowspan="3" style="text-align:center; background:#9f4721;color:#fff"|Dị Elu nke ukwuu
|8
|-
|9
|-
|10
|-
| style="text-align:center; background:#000000;color:#fff"|Ihe siri ike
|10+
|}
Nke ọ bụla n'ime ụdị ihe ize ndụ ahụike nwere ndụmọdụ metụtara ya. Na ọkwa dị ''ala'' na ''nke dị nro'', a na-adụ ọha na eze ọdụ na ha nwere ike ịga n'ihu na-arụ ọrụ dị mma. Maka ndị nọ n'ọkwa dị ''elu'', a na-adụ ụmụaka, ndị agadi na ndị nwere ọrịa obi ma ọ bụ iku ume nduma ọdụ ka ha belata nrụgide anụ ahụ n'èzí.  N'elu nke a (nke ''dị elu'' ma ọ bụ ''nke siri ike''), a na-adụ ọha na eze ọdụ ka ha belata ma ọ bụ zere nrụgide anụ ahụ n'èzí.

==== Mainland China ====
Ndị nke akpọrọ Ministry of Environmental Protection (MEP) nke China bụ ọrụ iji tụọ ọkwa mmetọ ikuku na China. Ka ọ na-erule na ọnwa Jenụwarị ụbọchị mbụ, na afọ 2013, MEP na-enyocha ọkwa mmetọ kwa ụbọchị na otu narị iri isii na atọ n'ime obodo ukwu ya. Ọnọdụ AQI dabere na ọkwa nke ihe isii na-emetọ ikuku, ya bụ sulfur dioxide (SO<sub>2</sub>), nitrogen dioxide (NO2), ihe ndị a kwụsịtụrụ na-erughị <sub>10</sub> μm na dayameta ikuku (PM10), ihe ndị a kwụpụrụ na-erute 2.5 μm na diametị ikuku (PM2.5), carbon monoxide (CO), na ozone (O3) nke a tụrụ na ụlọ nyocha n'obodo ọ bụla.<ref name=":0">{{Cite web|title=环境空气质量标准|date=2012-03-02|work=Ministry of Environmental Protection of the People's Republic of China|language=zh|url=http://kjs.mep.gov.cn/hjbhbz/bzwb/dqhjbh/dqhjzlbz/201203/W020120410330232398521.pdf|accessdate=2018-02-02|archivedate=2017-07-21|archiveurl=https://web.archive.org/web/20170721004955/http://kjs.mep.gov.cn/hjbhbz/bzwb/dqhjbh/dqhjzlbz/201203/W020120410330232398521.pdf}}</ref><ref name=":0" /><ref name="sepa.gov.cn">{{Cite web|title=环境空气质量指数(AQI) 技术规定(试行)|url=http://kjs.mep.gov.cn/hjbhbz/bzwb/jcffbz/201203/W020120410332725219541.pdf|date=2012-03-02|work=Ministry of Environmental Protection of the People's Republic of China|language=zh|accessdate=2018-02-02|archiveurl=https://web.archive.org/web/20180830110324/http://kjs.mep.gov.cn/hjbhbz/bzwb/jcffbz/201203/W020120410332725219541.pdf|archivedate=2018-08-30}}</ref>

; Ndị na-arụ ọrụ na AQI

A na-agbakọ akara onye ọ bụla na nke akp(Individual Air Quality Index, IAQI) site na iji nkwụsịtụ n'okpuru, yana iji otu ọrụ ahịrị ahịrị iji gbakọọ uru dị n'etiti dị ka US AQI scale. na A pụrụ ịgụta uru AQI ikpeazụ ma ọ bụ kwa awa ma ọ bụ awa iri abụọ na anọ ma ọ bụ bụ ''max'' nke akara isii a.<ref name="sepa.gov.cn"/>
{| class="wikitable"
|+Ụdị AQI nke China na ebe ndị na-emetọ ihe<ref name="sepa.gov.cn"/> 
!Ndepụta nke Onye Ọ bụla
! colspan="10" |Ndị otu dị na μg / m3 ma e wezụga CO, nke dị na mg / m3
|-
!IAQI
!Sulfur Dioxide (SO2) 24 awa nkezi
!Sulfur Dioxide (SO2) 1 awa nkezi (<sup>1</sup>)
!Nitrogen Dioxide (NO2) 24 awa nkezi
!Nitrogen Dioxide (NO2) 1 awa nke pụtara (<sup>1</sup>)
!PM10 24 awa nkezi
!Carbon Monoxide (CO) 24 awa nkezi
!Carbon Monoxide (CO) 1 awa nkezi (<sup>1</sup>)
!Ozone(O3)1 awa nkezi
!Ozone(O3)8 awa na-agagharị nkezi
!PM2.5 awa 24 nkezi
|-
|0
|0
|0
|0
|0
|0
|0
|0
|0
|0
|0
|-
|50
|50
|150
|40
|100
|50
|2
|5
|160
|100
|35
|-
|100
|150
|500
|80
|200
|150
|4
|10
|200
|160
|75
|-
|150
|475
|650
|180
|700
|250
|14
|35
|300
|215
|115
|-
|200
|800
|800
|280
|1200
|350
|24
|60
|400
|265
|150
|-
|300
|1600
|<sup>(2)</sup>
|565
|2340
|420
|36
|90
|800
|800
|250
|-
|400
|2100
|<sup>(2)</sup>
|750
|3090
|500
|48
|120
|Otu puku
|<sup>(3)</sup>
|350
|-
|500
|2620
|<sup>(2)</sup>
|940
|3840
|600
|60
|150
|1200
|<sup>(3)</sup>
|500
|-
|Ihe odide:
| colspan="10" |(1) SO2,NO2, na CO <sup>1</sup> awa nkezi bụ naanị maka akụkọ oge. Maka akụkọ kwa ụbọchị, jiri nkezi awa 24.

(<sup>2</sup>) Ọ bụrụ na SO2 1 awa gbatịrị 800μg / m3, jiri ndepụta sitere na 24 awa gbatị kama.

(<sup>3</sup>) Ọ bụrụ na O3 8 awa na-agagharị agagharị gafere 800μg / m3, jiri ndepụta site na 1 awa kama. 
|}

Akara maka mmetọ ọ bụla abụghị akara, dị ka akara AQI ikpeazụ. Ya mere, akara nke narị atọ AQI apụtaghị okpukpu abụọ nke mmetọ nke AQI na narị atọ na iri , ọ pụtakwara na ikuku dị okpukpu abụọ karịa nke ahụ. Ọnụ ọgụgụ nke mmetọ mgbe IAQI ya bụ otu narị  abụghị okpukpu abụọ nke ọnụ ọgụgụ ya mgbe IAQi ya bụ iri ise ọ pụtakwara na mmetọ ahụ bụ okpukpu abụọ karịa. Ọ bụ ezie na AQI nke iri ise site n'ụbọchị mbụ ruo otu nari iri asatọ na abụọ na AQI ya nke otu narị site n' ụbọchị otu narị iri asatọ na atọ ruo narị atọ iri isii na ise na-enye nkezi kwa afọ nke iri asaa na ise ọ pụtaghị na mmetọ ahụ dị mma ọbụlagodi na a na-ewere ihe atụ nke 100 dị ka ihe dị nchebe. N'ihi na ihe atụ ahụ bụ ihe mgbaru ọsọ awa iri abụọ na anọ, na nkezi kwa afọ ga-adaba na ihe mgbaruzu kwa afọ, ọ ga-ekwe omume ịnwe ikuku dị mma kwa ụbọchị n'afọ mana ọ ka na-adaba ihe atụ mmetọ kwa afọ.<ref name="sepa.gov.cn"/>
{| class="wikitable"
|+AQI and health implications (HJ 633–2012)<ref name="sepa.gov.cn"/>
! style="text-align:center; width:100px;" |AQI
!Air Pollution Level
! style="text-align:center; width:150px;" |Air Pollution<br /><br />Category
!Health Implications
!Recommended Precautions
|-
| style="text-align:center;" |0-50
|Level 1
| style="text-align:center; background:#00e400;color:#000"|Excellent
|No health implications.
|Everyone can continue their outdoor activities normally.
|-
| style="text-align:center;" |51-100
|Level 2
| style="text-align:center; background:#ffff00;color:#000"|Good
|Some pollutants may slightly affect very few hypersensitive individuals.
|Only very few hypersensitive people should reduce outdoor activities.
|-
| style="text-align:center;" |101-150
|Level 3
| style="text-align:center; background:#ff7e00;color:#000"|Lightly Polluted
|Healthy people may experience slight irritations and sensitive individuals will be slightly affected to a larger extent.
|Children, seniors and individuals with respiratory or heart diseases should reduce sustained and high-intensity outdoor exercises.
|-
| style="text-align:center;" |151-200
|Level 4
| style="text-align:center; background:#ff0000;color:#fff"|Moderately Polluted
|Sensitive individuals will experience more serious conditions. The hearts and respiratory systems of healthy people may be affected.
|Children, seniors and individuals with respiratory or heart diseases should avoid sustained and high-intensity outdoor exercises. General population should moderately reduce outdoor activities.
|-
| style="text-align:center;" |201-300
|Level 5
| style="text-align:center; background:#99004c;color:#fff"|Heavily Polluted
|Healthy people will commonly show symptoms. People with respiratory or heart diseases will be significantly affected and will experience reduced endurance in activities.
|Children, seniors and individuals with heart or lung diseases should stay indoors and avoid outdoor activities. General population should reduce outdoor activities.
|-
| style="text-align:center;" |301-500
|Level 6
| style="text-align:center; background:#7e0023;color:#fff"|Severely Polluted
|Healthy people will experience reduced endurance in activities and may also show noticeably strong symptoms. Other illnesses may be triggered in healthy people. Elders and the sick should remain indoors and avoid exercise. Healthy individuals should avoid outdoor activities.
|Children, seniors and the sick should stay indoors and avoid physical exertion. General population should avoid outdoor activities.
|}

=== Europe ===
Ndị akpọrọ ndị Common Air Quality Index (CAQI) bụ ndepụta nke ikuku eji eme ihe na Europe kemgbe afọ 2006. N'ọnwa Nọvemba 2017, European Environment Agency mara ọkwa ''European Air Quality Index'' (EAQI) wee malite ịgba ume iji ya na weebụsaịtị na ụzọ ndị ọzọ iji mee ka ọha mara banyere ịdị mma ikuku.

==== CAQI ====
Dị ka nke afọ 2012, ndị EU-nyere aka ná ọrụ ''Citeairll'' dị ka arụ ma ru ụka  nke CAQI so nwe nbuli elu nke ukwuu nke akpọrọ data, na nkọwa nke CAQI's mkpali na nkọwa.''Citeairll'' sịrị na enwe ezigbo ọnụ Ọgụgụ ikuku ga eme na e dị mfe e wepụta na uju mmadụ bụ ihe ukwu mkpali, ịhapụ ihe kachasị mkpa na ajụjụ gosiri na ahụ ike ọnụ Ọgụgụ nke akpọrọ health -based index, nke ga eme ka achọ dị ka ihe nlereanya na egosi njikọ ogo ọ dị iche iche na mmeto.ihe ka oké mkpa na CAQI bụ inwe ọnụ Ọgụgụ ga agba ume nke ukwuu ntule nkwenye nke EU, wezụga e ọchị ndekasi mpaghara.

''Citeairll'' si kwuo na ihe ka mkpa na isi ihe nke CAQI a bụrụ  e nye e do ndị mmeáká na ntị nke nwere ike ịgba a ahụ ike mmetụta.mmetuta ezigbo ikuku mana anya na isi ihe nke akpọrọ (traffic)na bekee  ma nyere ibelata ikpugh.

CAQI bụ nọmba dị na ọkwa site na 0 ruo 100. A na-akọwa ndepụta ahụ na nsụgharị elekere na kwa ụbọchị, yana iche iche n'akụkụ okporo ụzọ (n'akụkụ okporo ígwè ma ọ bụ "n'okpuru okporo ụzọ") ma ọ bụ n'ebe dị anya n'okporo ụzọ (nn'azụ ala).  n'afọ 2012, CAQI nwere ihe abụọ dị mkpa maka ndepụta nke okporo ụzọ, NO2 na PM10, na ihe atọ dị mkpa maka akara ndabere, NO2, PM10 na O3. Ọ gụnyekwara ihe mmetọ PM2.5, CO na SO2. A na-agbakọ "sub-index" maka nke ọ bụla n'ime ihe ndị dị mkpa (na nhọrọ ma ọ bụrụ na ọ dị). A na-akọwa CAQI dị ka sub-index nke na-anọchite anya àgwà kachasị njọ n'etiti ihe ndị ahụ.

Ụfọdụ n'ime isi mmetọ na μg / m3 maka ndepụta ndabere elekere, sub-indices kwekọrọ, na mpaghara CAQI ise na nkọwa okwu dị ka ndị a:
{| class="wikitable" style="text-align:center;"
!Aha dị mma
!Ndepụta ma ọ bụ sub-ndepụta
! colspan="4" |Mmetụta na-emetọ (n'otu awa)
|-
! colspan="2" |
!NO2 μg/m3
!PM10 μg/m3
!O3 μg/m3
!PM2.5 (nhọrọ) μg/m3
|-
|Ọ dị ala nke ukwuu
| style="background:#79bc6a;" |0-25
|0-50
|0-25
|0-60
|0-15
|-
|Ala Dị Ala
| style="background:#bbcf4c;" |25-50
|50-100
|25-50
|60-120
|15-30
|-
|Ndị nọ n'etiti
| style="background:#eec205;" |50-75
|100-200
|50-90
|120-180
|30-55
|-
|Elu
| style="background:#f29305;" |75-100
|200-400
|90-180
|180-240
|55-110
|-
|Dị nnọọ elu
| style="background:#e8416f;" |>100
|>400
|>180
|>240
|>110
|-
|}
A na-egosi ụkpụrụ na map CAQI na-emelite ugboro ugboro na nkea; www.airqualitynow.eu na ebe nrụọrụ weebụ ndị ọzọ.<ref>{{Cite web|url=http://www.airqualitynow.eu/|title=Home|work=airqualitynow.eu}}</ref> A kọwakwara Year Average Common Air Quality Index (YACAQI) dị iche, nke a na-eme ka sub-indices dị iche iche na-emetọ ikuku dị iche iche dị iche iche ka uru dị nso na ịdị n'otu. Dịka ọmụmaatụ, a na-ekewa nkezi kwa afọ nke NO2, PM10 na PM2.5 site na 40 μg / m3, 40 μg - m3 na 20 μg / M3, n'otu n'otu. N'ozuzu ndabere ma ọ bụ okporo ụzọ YACAQI maka obodo bụ arithmetic nke nkọwa nke sub-indices ndị a.

=== India ===
A malitere National Air Quality Index (AQI) na New Delhi na Septemba 17, na afọ 2014, n'okpuru Swachh Bharat Abhiyan.<ref>{{Cite news|url=https://www.washingtonpost.com/blogs/worldviews/wp/2014/10/17/india-launches-its-own-air-quality-index-can-its-numbers-be-trusted/|title=India launches its own Air Quality Index. Can its numbers be trusted?|author=Rama Lakshmi|date=October 17, 2014|work=Washington Post|accessdate=August 20, 2015}}</ref><ref>{{Cite news|title=National Air Quality Index (AQI) launched by the Environment Minister AQI is a huge initiative under 'Swachh Bharat' AQI to act as 'One Number- One Colour-One Description' to judge the Air Qualit|url=https://www.business-standard.com/article/government-press-release/national-air-quality-index-aqi-launched-by-the-environment-minister-aqi-114101700961_1.html|work=Business Standard India|date=17 October 2014}}</ref><ref>{{Cite news|title=Air Quality Index in India: When it was set up and how it is measured|url=https://www.firstpost.com/india/from-safar-to-national-air-quality-index-how-and-when-india-started-monitoring-aqi-10143261.html|work=Firstpost|date=17 November 2021|language=en}}</ref><ref>{{Cite news|title=National Air Quality Index (AQI) launched by the Environment Minister AQI is a huge initiative under 'Swachh Bharat'|url=https://pib.gov.in/newsite/printrelease.aspx?relid=110654#:~:text=National%20Air%20Quality%20Index%20(AQI,Environment%2C%20Forest%20and%20Climate%20Change.&text=The%20Minister%20for%20Environment%2C%20Forests,(AQI)%20in%20New%20Delhi.|work=pib.gov.in}}</ref>

[[Central Pollution Control Board|Ndị akpọrọ Central Pollution Control Board]] tinyere State Pollution Controards anọwo na-arụ ọrụ National hụ Air Monitoring Program (NAMP) na-ekpuchi obodo narị abụọ na iri anọ nke mba ahụ nwere ihe karịrị ụlọ ọrụ nlekota ọnụ Ọgụgụ nkea; narị ato iri anọ na abụọ.<ref>{{Cite web|url=http://www.ppsthane.com/blog/ambient-air-quality-monitoring-stations|title=Ambient Air Quality Monitoring Stations|date=2016-08-15|language=en-US|accessdate=2016-08-16}}</ref> E guzobere otu ndị ọkachamara nke gụnyere ndị ọkachamara ahụike, ndị ọkachamara na ikuku, agụmakwụkwọ, ndị otu nkwado, na SPCBs ma nye IIT Kanpur ọmụmụ teknụzụ. IIT Kanpur na Expert Group tụrụ aro atụmatụ AQI na 2014.<ref>{{Cite web|url=http://home.iitk.ac.in/~mukesh/indian%20air%20quality.html|title=Indian Air Quality Index|accessdate=2014-10-21|archiveurl=https://web.archive.org/web/20141107224911/http://home.iitk.ac.in/~mukesh/indian%20air%20quality.html|archivedate=2014-11-07}}</ref> Ọ bụ ezie na ndepụta mbụ na-ejedebe na ihe ngosi atọ, ndepụta ọhụrụ ahụ na-atụle akụkụ asatọ.<ref>{{Cite web|url=http://pib.nic.in/newsite/PrintRelease.aspx?relid=110654|title=National Air Quality Index (AQI) launched by the Environment Minister AQI is a huge initiative under 'Swachh Bharat'|accessdate=20 August 2015}}</ref> A na-etinye usoro nlekota na-aga n'ihu nke na-enye data na nso oge na New Delhi, Mumbai, Pune, Kolkata na [[Ahmedabad]].<ref>{{Cite news|url=http://economictimes.indiatimes.com/news/politics-and-nation/india-launches-index-to-measure-air-quality/etvertical_articleshow/44855452.cms|title=India launches index to measure air quality|work=timesofindia-economictimes|accessdate=20 August 2015}}</ref>

E nwere ụdị AQI isii, ya bụ, nke ọma, nke na-eju afọ, nke dị nro, nke dara ogbenye, nke siri ike, na nke dị ize ndụ. AQI a na-atụ aro ga-atụle mmetọ asatọ (PM10, PM2.5, NO2, SO2, CO, O3, NH3, na Pb) nke a na-edepụta obere oge (ruo oge nkezi awa iri abụọ na anọ) nke akpọrọ ihe ndịa na bekee National Ambient Air Quality Standards.<ref>{{Cite web|url=http://www.cpcb.nic.in|title=::: Central Pollution Control Board :::|accessdate=20 August 2015}}</ref> Dabere na ọnụọgụ gburugburu ebe obibi a tụrụ, ụkpụrụ kwekọrọ na mmetụta ahụike nwere ike inwe, a na-agbakọ sub-index maka nke ọ bụla n'ime mmetọ ndị a. Nchịkọta kachasị njọ na-egosipụta AQI n'ozuzu ya. Enwere ike ịtụ aro mmetụta ahụike maka ụdị AQI dị iche iche na mmetọ, yana ntinye isi sitere n'aka ndị ọkachamara ahụike n'òtù ahụ. Ụkpụrụ AQI na ọnụọgụ gburugburu ebe obibi kwekọrọ (ebe nkwụsị ahụike) yana mmetụta ahụike metụtara ya maka mmetọ asatọ a chọpụtara bụ ndị a:
{| class="wikitable"
|+Ụdị AQI, Mmetọ na Ihe Ndị Na-adịghị Ahụike
|Ụdị AQI (Range)
|PM10 (24hr)
|PM2.5 (24hr)
|NO2 (24hr)
|O3 (8hr)
|CO (8hr)
|SO2 (24hr)
|NH3 (24hr)
|Pb (24hr)
|Agba
|-
| style="background:#00b050; colour: black" |Good (0-50)
| style="background:#00b050; colour: black" |0-50
| style="background:#00b050; colour: black" |0-30
| style="background:#00b050; colour: black" |0-40
| style="background:#00b050; colour: black" |0-50
| style="background:#00b050; colour: black" |0-1.0
| style="background:#00b050; colour: black" |0-40
| style="background:#00b050; colour: black" |0-200
| style="background:#00b050; colour: black" |0-0.5
| style="background:#00b050; colour: black" |Green
|-
| style="background:#92d050; colour: black" |Satisfactory (51-100)
| style="background:#92d050; colour: black" |51-100
| style="background:#92d050; colour: black" |31-60
| style="background:#92d050; colour: black" |41-80
| style="background:#92d050; colour: black" |51-100
| style="background:#92d050; colour: black" |1.1-2.0
| style="background:#92d050; colour: black" |41-80
| style="background:#92d050; colour: black" |201-400
| style="background:#92d050; colour: black" |0.5-1.0
| style="background:#92d050; colour: black" |Light Green
|-
| style="background:#ffff00; colour: black" |Moderate (101-200)
| style="background:#ffff00; colour: black" |101-250
| style="background:#ffff00; colour: black" |61-90
| style="background:#ffff00; colour: black" |81-180
| style="background:#ffff00; colour: black" |101-168
| style="background:#ffff00; colour: black" |2.1-10
| style="background:#ffff00; colour: black" |81-380
| style="background:#ffff00; colour: black" |401-800
| style="background:#ffff00; colour: black" |1.1-2.0
| style="background:#ffff00; colour: black" |Yellow
|-
| style="background:#ff6500; colour: black" |Poor (201-300)
| style="background:#ff6500; colour: black" |251-350
| style="background:#ff6500; colour: black" |91-120
| style="background:#ff6500; colour: black" |181-280
| style="background:#ff6500; colour: black" |169-208
| style="background:#ff6500; colour: black" |10-17
| style="background:#ff6500; colour: black" |381-800
| style="background:#ff6500; colour: black" |801-200
| style="background:#ff6500; colour: black" |2.1-3.0
| style="background:#ff6500; colour: black" |Orange
|-
| style="background:#ff0000; color: white" |Very Poor (301-400)
| style="background:#ff0000; color: white" |351-430
| style="background:#ff0000; color: white" |121-250
| style="background:#ff0000; color: white" |281-400
| style="background:#ff0000; color: white" |209-748
| style="background:#ff0000; color: white" |17-34
| style="background:#ff0000; color: white" |801-1600
| style="background:#ff0000; color: white" |1200-1800
| style="background:#ff0000; color: white" |3.1-3.5
| style="background:#ff0000; color: white" |Red
|-
| style="background:#c00000; color: white" |Severe (401-500)
| style="background:#c00000; color: white" |430+
| style="background:#c00000; color: white" |250+
| style="background:#c00000; color: white" |400+
| style="background:#c00000; color: white" |748+
| style="background:#c00000; color: white" |34+
| style="background:#c00000; color: white" |1600+
| style="background:#c00000; color: white" |1800+
| style="background:#c00000; color: white" |3.5+
| style="background:#c00000; color: white" |Maroon
|}
{| class="wikitable"
!AQI
!Mmetụta Ahụike Ndị Jikọrọ Aka
|-
|Eziokwu (0-50)
|Mmetụta pere mpe
|-
|Ihe na-eju afọ (51-100)
|Obere iku ume erughị ala nye ndị nwere mmetụta
|-
|Ọ dị nro (101-200)
|Ahụ erughị ala na-eku ume na ndị nwere ngụgụ, ụkwara ume ọkụ na ọrịa obi
|-
|Ndị ogbenye (201-300)
|Ahụ́ erughị ala na-eku ume nye ọtụtụ ndị mmadụ na ikpughe ogologo oge
|-
|Severe (301-400)
|Ọrịa iku ume na ikpughe ogologo oge
|-
|Ihe Ndị Dị Iche Iche (401-500)
|Na-emetụta ndị ahụike ma na-emetụta ndị nwere ọrịa dị adị
|}

=== Singapore ===
Singapore na-eji Pollutant Standards Index iji kọọ banyere ịdị mma ikuku ya, na nkọwa nke ngụkọta yiri ma ọ bụghị otu na ndị e ji mee ihe na Malaysia na Hong Kong.<ref>{{Cite web|url=http://app.mewr.gov.sg/web/Contents/Contents.aspx?ContId=52|title=MEWR - Key Environment Statistics - Clean Air|publisher=App.mewr.gov.sg|date=2011-06-08|accessdate=2011-11-11|archiveurl=https://web.archive.org/web/20111009052449/http://app.mewr.gov.sg/web/Contents/Contents.aspx?ContId=52|archivedate=2011-10-09}}</ref><ref>{{Cite web|url=http://app2.nea.gov.sg/data/cmsresource/20090401682645441976.pdf|title=National Environment Agency - Calculation of PSI|accessdate=2012-06-15|archiveurl=https://web.archive.org/web/20130515095923/http://app2.nea.gov.sg/data/cmsresource/20090401682645441976.pdf|archivedate=2013-05-15}}</ref>
A na-achịkọta chaatị PSI dị n'okpuru site na ụkpụrụ ndepụta na nkọwa, dị ka National Environment Agency si kwuo.<ref>{{Cite web|url=http://app2.nea.gov.sg/psi_hazeplan.aspx|title=National Environment Agency|publisher=App2.nea.gov.sg|accessdate=2011-11-11|archiveurl=https://web.archive.org/web/20111125033900/http://app2.nea.gov.sg/psi_hazeplan.aspx|archivedate=2011-11-25}}</ref>
{| class="wikitable"
!PSI
!Onye Nkọwa
!Ndị ahụike
!Ndị agadi, ụmụ nwanyị dị ime, ụmụaka
!Ndị nwere ọrịa na-adịghị ala ala ma ọ bụ ọrịa obi
|-
|0-50
|Eziokwu
|Ihe omume nkịtị
|Ihe omume nkịtị
|Ihe omume nkịtị
|-
|51-100
|Ịdị nro
|Ihe omume nkịtị
|Ihe omume nkịtị
|Ihe omume nkịtị
|-
|101-200
|Enweghị ahụike
|Belata mgbatị ahụ dị ogologo ma ọ bụ nke siri ike n'èzí
|Wedata mgbatị ahụ dị ogologo ma ọ bụ ike siri ike n'èzí
|Zere mgbatị ahụ dị ogologo ma ọ bụ ike siri ike n'èzí
|-
|201-300
|Ọ dịghị Ahụ Ike Dị Ndụ
|Zere mgbatị ahụ dị ogologo ma ọ bụ ike siri ike n'èzí
|Wedata mmemme n'èzí
|Zere mmemme n'èzí
|-
|301-500
|Ihe Ndị Dị Iche Iche
|Wedata mmemme n'èzí
|Zere mmemme n'èzí
|Zere mmemme n'èzí
|}

=== South Korea ===
Ministry of Environment nke Ndịda Korea na-eji Comprehensive Air-quality Index (CAI) akọwa ọdịdị ikuku gburugburu ebe obibi dabere na ihe ize ndụ ahụike nke mmetọ ikuku. Ndepụta ahụ na-ezube inyere ọha na eze aka ịghọta ịdị mma ikuku n'ụzọ dị mfe ma chebe ahụike ndị mmadụ. CAI dị na ọkwa site na 0 ruo 500, nke e kewara n'ụdị isii. Ka ọnụ ọgụgụ CAI dị elu, otú ahụ ka ọkwa mmetọ ikuku dị ukwuu.
N'ime uru nke mmetọ ikuku ise, nke kachasị elu bụ uru CAI. Ndepụta ahụ nwekwara mmetụta ahụike na-emetụta na nnọchite anya agba nke ụdị dị ka egosiri n'okpuru ebe a.<ref>{{Cite web|url=http://www.airkorea.or.kr/eng/cai/cai1|title=What's CAI|publisher=Air Korea|accessdate=25 October 2015|archiveurl=https://web.archive.org/web/20180622005031/http://www.airkorea.or.kr/eng/cai/cai1|archivedate=22 June 2018}}</ref>
{| class="wikitable mw-collapsible"
! style="width:150px;" |CAI
! style="width:200px;" |Nkọwa
!Mmetụta Ahụike
|-
| style="text-align:center;" |0-50
| style="text-align:center; background:#0000ff;color:#fff"|Ihe dị mma
|Ọkwa nke na-agaghị emetụta ndị ọrịa nwere ọrịa metụtara mmetọ ikuku
|-
| style="text-align:center;" |51-100
| style="text-align:center; background:#00ff00;color:#000"|Ọ dị nro
|Ọkwa nke nwere ike inwe mmetụta dị nta na ndị ọrịa ma ọ bụrụ na ha na-ahụkarị
|-
| style="text-align:center;" |101-250
| style="text-align:center; background:#ffff00;color:#000"|Ndị na-adịghị ahụ ike
|Ọkwa nke nwere ike inwe mmetụta na-emerụ ahụ na ndị ọrịa na ndị otu ndị nwere mmetụta (ụmụaka, ndị agadi ma ọ bụ ndị na-adịghị ike), ma na-akpatakwa mmetụta na-adịghị mma n'ihu ọha
|-
| style="text-align:center;" |251-500
| style="text-align:center; background:#ff0000;color:#fff"|Ọ bụ onye na-adịghị ahụike nke ukwuu
|Ọkwa nke nwere ike inwe mmetụta siri ike na ndị ọrịa na ndị otu ndị nwere mmetụta ma ọ bụrụ na ha na-ahụ ihe n'ụzọ siri ike
|-
|}
N Seoul Tower na Namsan Mountain na etiti Seoul, Ndịda Korea, na-enwu ọkụ na-acha anụnụ anụnụ, site na ọdịda anyanwụ ruo 23:00 na 22:00 n'oge oyi, n'ụbọchị ebe [[Mmetọ ikuku|ikuku dị]] na Seoul bụ iri anọ na ise ma ọ bụ obere. N'oge opupu ihe ubi nke afọ 2012, a mụnyere ụlọ elu ahụ ruo ụbọchị iri ise na ab nke bụ ụbọchị anọ karịa na afo 2011.<ref>{{Cite news|title=Improved Air Quality Reflected in N Seoul Tower|url=http://english.chosun.com/site/data/html_dir/2012/05/18/2012051801102.html|accessdate=29 July 2012|work=Chosun Ilbo|date=18 May 2012}}</ref>

=== United Kingdom ===
Nkọwapụta ikuku kachasị mma na UK bụ nke akpọrọ Daily Air Quality Index nke [[Kọmitii na-ahụ maka mmetụta ahụike nke ikuku na-mmetọ ikuku|Kọmitii na-ahụ maka mmetụta ahụike nke ikuku]] ikuku (COMEAP) tụrụ aro.<ref>{{Cite web|url=http://comeap.org.uk/documents/130-review-of-the-uk-air-quality-index.html|archiveurl=https://web.archive.org/web/20111115230335/http://www.comeap.org.uk/documents/130-review-of-the-uk-air-quality-index.html|archivedate=2011-11-15|title=Review of the UK Air Quality Index|author=COMEAP|work=COMEAP website}}</ref> Ndepụta a nwere isi iri, nke a na-agbakwunye n'ime band anọ: ala, nke dị nro, nke dị elu na nke dị elu. Nke ọ bụla n'ime ìgwè ndị ahụ na-abịa na ndụmọdụ maka ndị nọ n'ihe ize ndụ na ndị mmadụ n'ozuzu.<ref name="defra_AQI">{{Cite web|url=http://uk-air.defra.gov.uk/air-pollution/daqi|title=Daily Air Quality Index|publisher=[[Department for Environment, Food and Rural Affairs|Defra]]|work=Air UK Website}}</ref>
{| class="wikitable"
!Mmetọ ikuku
!Uru Ya Dị Mkpa
!Ozi ahụike maka ndị nọ n'ihe ize ndụ
!Ozi ahụike maka ndị mmadụ n'ozuzu
|-
| style="color:#9CFF9C;font-weight:bold" |Ala Dị Ala
| style="color:#9CFF9C;font-weight:bold" |1-3
|Nwee obi ụtọ na ihe omume gị na-eme n'èzí.
|Nwee obi ụtọ na ihe omume gị na-eme n'èzí.
|-
| style="color:#FFFF00;font-weight:bold" |Ịdị nro
| style="color:#FFFF00;font-weight:bold" |4-6
|Ndị okenye na ụmụaka nwere nsogbu akpa ume, na ndị okenye nwere nsogbu obi, ndị na-enwe mgbaàmà, kwesịrị ịtụle ibelata mmega ahụ siri ike, ọkachasị n'èzí.
|Nwee obi ụtọ na ihe omume gị na-eme n'èzí.
|-
| style="color:#FF6464;font-weight:bold" |Elu
| style="color:#FF6464;font-weight:bold" |7-9
|Ndị okenye na ụmụaka nwere nsogbu akpa ume, na ndị okenye nwere nsogbu obi, kwesịrị ibelata nrụgide siri ike, ọkachasị n'èzí, ọkachasị ma ọ bụrụ na ha nwere mgbaàmà. Ndị na-arịa ụkwara ume ọkụ nwere ike ịchọta na ọ dị ha mkpa iji inhaler ha na-eme ka ha dịkwuo mfe. Ndị agadi kwesịkwara ibelata mgbalị anụ ahụ.
|Onye ọ bụla nwere nsogbu dịka anya mgbu, ụkwara ma ọ bụ mgbu akpịrị kwesịrị ịtụle ibelata ọrụ, ọkachasị n'èzí.
|-
| style="color:#CE30FF;font-weight:bold" |Dị Elu nke ukwuu
| style="color:#CE30FF;font-weight:bold" |10
|Ndị okenye na ụmụaka nwere nsogbu akpa ume, ndị okenye nwere nsogbu obi, na ndị okenye, kwesịrị izere mmega ahụ siri ike. Ndị na-arịa ụkwara ume ọkụ nwere ike ịchọta na ọ dị ha mkpa iji inhaler ha na-eme ka ha dịkwuo mfe.
|Mbelata nrụgide ahụike, ọkachasị n'èzí, ọkachasị ma ọ bụrụ na ị nwere mgbaàmà dịka ụkwara ma ọ bụ mgbu akpịrị.
|}
Ndepụta ahụ dabere na ọnụ ọgụgụ nke mmetọ ise. A na-agbakọ ndepụta ahụ site na njupụta nke mmetọ ndị a: Ozone, Nitrogen Dioxide, Sulphur Dioxide. PM2.5 na PM10.  A na-akọwa ebe nkwụsịtụ dị n'etiti ọnụọgụ ndepụta maka mmetọ ọ bụla iche iche ma kọwaa ndepụta zuru oke dị ka uru kachasị nke ndepụta ahụ. A na-eji oge dị iche iche eme ihe maka mmetọ dị iche iche.<ref name="defra_AQI"/>
{| class="wikitable"
!Ndepụta
!Ozone, Na-agba ọsọ 8 kwa awa (μg/m3)
!Nitrogen Dioxide, elekere elekere (μg/m3)
!Sulphur Dioxide, nkeji iri na ise (μg/m3)
!PM2.5 Particles, 24 awa nkezi (μg/m3)
!PM10 Particles, 24 awa nkezi (μg/m3)
|- style="background-color:#9cff9c;color:#000;font-weight:bold"
|1
|0-33
|0-67
|0-88
|0-11
|0-16
|- style="background-color:#31ff00;color:#000;font-weight:bold"
|2
|34-66
|68-134
|89-177
|12-23
|17-33
|- style="background-color:#31cf00;color:#000;font-weight:bold"
|3
|67-100
|135-200
|178-266
|24-35
|34-50
|- style="background-color:#ffff00;color:#000;font-weight:bold"
|4
|101-120
|200-267
|267-354
|36-41
|51-58
|- style="background-color:#ffcf00;color:#000;font-weight:bold"
|5
|121-140
|268-334
|355-443
|42-47
|59-66
|- style="background-color:#ff9a00;color:#000;font-weight:bold"
|6
|141-160
|335-400
|444-532
|48-53
|67-75
|- style="background-color:#ff6464;color:#000;font-weight:bold"
|7
|161-187
|401-467
|533-710
|54-58
|76-83
|- style="background-color:#ff0000;color:#fff;font-weight:bold"
|8
|188-213
|468-534
|711-887
|59-64
|84-91
|- style="background-color:#990000;color:#fff;font-weight:bold"
|9
|214-240
|535-600
|888-1064
|65-70
|92-100
|- style="background-color:#ce30ff;color:#000;font-weight:bold"
|10
|≥ 241
|≥ 601
|≥ 1065
|≥ 71
|≥ 101
|}

=== United States ===
[[Usòrò:Pm25-24a-super.gif|thumb|PM2.5 24-Hour AQI Loop, site n'enyemaka US EPA]]
Ndị United States Environmental Protection Agency (EPA) emepụtala Air Quality Index nke a na-eji kọọ àgwà ikuku. A na-ekewa AQI a n'ụdị isii na-egosi ọkwa na-arịwanye elu nke nchegbu ahụike. Ọnụ ọgụgụ AQI karịrị narị ato na-anọchite anya ikuku dị ize ndụ na n'okpuru iri ise ikuku dị mma.<ref name="aqi_basic"/>
{| class="wikitable"
!AQI
!Category
!Color
!Health implications
!What should people do
|-
| style="text-align:center;" |0-50
| style="text-align:center;" |Eziokwu
| style="text-align:center; background:#00e400;color:#000" |Green
|A na-ewere ogo ikuku dị ka afọ ojuju, na mmetọ ikuku na-ebute ntakịrị ma ọ bụ enweghị ihe ize ndụ.
|Ọ bụ nnukwu ụbọchị iji na-eme ihe n'èzí.
|-
| style="text-align:center;" |51-100
| style="text-align:center;" |Ịdị nro
| style="text-align:center; background:#ffff00;color:#000" |Yellow
|A na-anabata ịdị mma ikuku; Otú ọ dị, maka ụfọdụ mmetọ enwere ike inwe nchegbu ahụike na-agafeghị oke maka ọnụ ọgụgụ dị nta nke ndị mmadụ na-enwe mmetụta na-adịghị ahụkebe maka mmetọ ikuku.
|Ndị nwere mmetụta na-adịghị ahụkebe: Tụlee ibelata mgbatị ahụ dị ogologo ma ọ bụ dị arọ. Lezienụ anya maka mgbaàmà dị ka ụkwara ma ọ bụ mkpụmkpụ ume. Ndị a bụ ihe ịrịba ama iji mee ka ọ dịkwuo mfe.
Onye ọ bụla ọzọ: Ọ bụ ụbọchị dị mma na-arụsi ọrụ ike n'èzí.
|-
| style="text-align:center;" |101-150
| style="text-align:center;" |Ọ dịghị Ahụ Ike Maka Ìgwè Ndị Nwere Mmetụta
| style="text-align:center; background:#ff7e00;color:#000" |Orange
|Ndị otu ndị nwere mmetụta nwere ike nweta mmetụta ahụike. O yikarịrị ka ọ gaghị emetụta ọha ọha.
|Otu nwere mmetụta: Belata mgbatị ahụ dị ogologo ma ọ bụ dị arọ. Ọ dị mma ka ị na-arụsi ọrụ ike n'èzí, mana wepụtakwu oge ezumike ma mee obere ihe omume siri ike. Lezienụ anya maka mgbaàmà dị ka ụkwara ma ọ bụ mkpụmkpụ ume.<br>Ndị nwere ụkwara ume ọkụ kwesịrị ịgbaso atụmatụ mmemme ụkwara ume ha ma debe ọgwụ enyemaka ngwa ngwa.<br>Ọ bụrụ na ị nwere ọrịa obi: Mgbaàmà dị ka palpitations, mkpụmkpụ ume, ma ọ bụ ike ọgwụgwụ pụrụ iche nwere ike igosi nsogbu siri ike. Ọ bụrụ na ị nwere nke ọ bụla n'ime ndị a, kpọtụrụ onye na-ahụ maka ahụike gị.
|-
| style="text-align:center;" |151-200
| style="text-align:center;" |Enweghị ahụike
| style="text-align:center; background:#ff0000;color:#fff" |Red
|Onye ọ bụla nwere ike ịmalite inwe mmetụta ahụike; ndị otu nwere mmetụta nwere ike nweta mmetụta ahụike ka njọ.
|Otu ndị nwere mmetụta: Zenarị mgbatị ahụ dị ogologo ma ọ bụ dị arọ. Bugharịa ihe omume n'ime ụlọ ma ọ bụ bugharịa oge ka ọ bụrụ oge ikuku ka mma.
Onye ọ bụla ọzọ: Belata mgbatị ahụ dị ogologo ma ọ bụ dị arọ. Wepụtakwu oge ezumike n'oge mmemme niile dị n'èzí.
|-
| style="text-align:center;" |201-300
| style="text-align:center;" |Ọ dịghị Ahụ Ike Dị Ndụ
| style="text-align:center; background:#8f3f97;color:#fff" |Purple
|Ịmata ahụike: onye ọ bụla nwere ike nweta mmetụta ahụike ka njọ.
|Otu nwere mmetụta: Zenarị mmega ahụ niile n'èzí. Bugharịa ihe omume n'ime ụlọ ma ọ bụ bugharịa oge ka ọ bụrụ oge ikuku ka mma.
Onye ọ bụla ọzọ: Zenarị mgbatị ahụ dị ogologo ma ọ bụ dị arọ. Tụlee imegharị ihe omume n'ime ụlọ ma ọ bụ ịhazigharị oge ka ikuku dị mma.
|-
| style="text-align:center;" |301-500
| style="text-align:center;" |Ihe Ndị Dị Iche Iche
| style="text-align:center; background:#7e0023;color:#fff" |Maroon
|Ịdọ aka ná ntị ahụike nke ọnọdụ mberede. O yikarịrị ka ọ ga-emetụta ndị mmadụ niile.
|Onye ọ bụla: Zere mmega ahụ niile n'èzí.
Otu nwere mmetụta: Nọgidenụ n'ime ụlọ ma mee ka ọkwa mmemme dị ala. Soro ndụmọdụ maka idowe ọkwa mmemme dị ala n'ime ụlọ.
|}
AQI dabeere na "ihe" ise na-emetọ ikuku dị ọcha: ozone dị n'ala, ihe particulate, carbon monoxide, sulfur dioxide, na nitrogen dioxide.  EPA eguzobewo National Ambient Air Quality Standards (NAAQS) maka nke ọ bụla n'ime mmetọ ndị a iji chebe ahụike ọha na eze. Uru AQI nke otu narị n'ozuzu ya kwekọrọ na ọkwa nke NAAQS maka mmetọ.<ref name="aqi_basic"/> The Clean Air Act (USA) (1990) chọrọ ka EPA nyochaa National Ambient Air Quality Standards kwa afọ ise iji gosipụta ozi mmetụta ahụike na-agbanwe agbanwe. A na-agbanwe Air Quality Index site n'oge ruo n'oge iji gosipụta mgbanwe ndị a.

==== Ịkọwapụta AQI ====
Nkọwa nke ịdị mma ikuku bụ ọrụ dị n'ahịrị nke mmetọ. N'ókè dị n'etiti ụdị AQI, enwere ịwụli elu nke otu otu AQI. Iji gbanwee site na itinye uche gaa na AQI, a na-eji usoro a:

<math> I  = \frac {I_{high} -I_{low}}{ C_{high} -C_{low} }(C-C_{low}) +I_{low} </math>

(Ọ bụrụ na a na-atụle ọtụtụ mmetọ, AQI a gbakọrọ bụ uru kachasị elu gbakọrọ site na nhazi dị n'elu maka mmetọ ọ bụla.)

: = ndepụta (Air Quality),<math>I</math>
: = oke mmetọ,<math>C</math>
: = ebe nkwụsịtụ nke bụ ≤,<math>C_{low}</math><math>C</math>
: = ebe nkwụsịtụ nke bụ ≥,<math>C_{high}</math><math>C</math>
: = akara ngosi nke kwekọrọ na ,<math>I_{low}</math><math>C_{low}</math>
: = akara ngosi nke kwekọrọ na .<math>I_{high}</math><math>C_{high}</math>

Tebụl nke ebe nkwụsị nke EPA di:<ref name="tech_aqi">{{Cite book|title=Technical Assistance Document for the Reporting of Daily Air Quality – the Air Quality Index (AQI)|author=David Mintz|publisher=US EPA Office of Air Quality Planning and Standards|location=North Carolina|date=September 2018|id=EPA-454/B-18-007|url=https://www.airnow.gov/sites/default/files/2020-05/aqi-technical-assistance-document-sept2018.pdf|accessdate=15 September 2021}}</ref><ref name="tech_aqi2">{{Cite book|title=Revised Air Quality Standards For Particle Pollution And Updates To The Air Quality Index (AQI)|publisher=US EPA Office of Air Quality Planning and Standards|location=North Carolina|date=2013|url=http://www.epa.gov/pm/2012/decfsstandards.pdf}}</ref><ref>{{Cite web|title=ENVIRONMENTAL PROTECTION AGENCY 40 CFR Parts 50, 51, 52, 53 and 58 [EPA-HQ-OAR-2008-0699; FRL-9913-18-OAR] RIN 2060-AP38 – National Ambient Air Quality Standards for Ozone|publisher=Environmental Protection Agency|url=http://www3.epa.gov/airquality/ozonepollution/pdfs/20151001fr.pdf|accessdate=2015-10-05|archiveurl=https://web.archive.org/web/20151006064556/http://www3.epa.gov/airquality/ozonepollution/pdfs/20151001fr.pdf|archivedate=2015-10-06}}</ref>
{| class="wikitable" style="text–align:left;"
|'''O<sub>3</sub> (ppb)'''
|'''O<sub>3</sub> (ppb)'''
|'''PM<sub>2.5</sub> (μg/m<sup>3</sup>)'''
|'''PM<sub>10</sub> (μg/m<sup>3</sup>)'''
|'''CO (ppm)'''
|'''SO<sub>2</sub> (ppb)'''
|'''NO<sub>2</sub> (ppb)'''
|'''AQI'''
|'''Category'''
|-
|0-54 (8-hr)
|—
|0.0-12.0 (24-hr)
|0-54 (24-hr)
|0.0-4.4 (8-hr)
|0-35 (1-hr)
|0-53 (1-hr)
|0-50
| style="background:#00e400;" |'''Good'''
|-
|55-70 (8-hr)
|—
|12.1-35.4 (24-hr)
|55-154 (24-hr)
|4.5-9.4 (8-hr)
|36-75 (1-hr)
|54-100 (1-hr)
|51-100
| style="background:#ff0;" |'''Moderate'''
|-
|71-85 (8-hr)
|125-164 (1-hr)
|35.5-55.4 (24-hr)
|155-254 (24-hr)
|9.5-12.4 (8-hr)
|76-185 (1-hr)
|101-360 (1-hr)
|101-150
| style="background:#ff7e00;" |'''Unhealthy for Sensitive Groups'''
|-
|86-105 (8-hr)
|165-204 (1-hr)
|55.5-150.4 (24-hr)
|255-354 (24-hr)
|12.5-15.4 (8-hr)
|186-304 (1-hr)
|361-649 (1-hr)
|151-200
| style="background:#f00; color:#fff;" |'''Unhealthy'''
|-
|106-200 (8-hr)
|205-404 (1-hr)
|150.5-250.4 (24-hr)
|355-424 (24-hr)
|15.5-30.4 (8-hr)
|305-604 (24-hr)
|650-1249 (1-hr)
|201-300
| style="background:#8f3f97; color:#fff;" |'''Very Unhealthy'''
|-
|—
|405-604 (1-hr)
|250.5-500.4 (24-hr)
|425-604 (24-hr)
|30.5-50.4 (8-hr)
|605-1004 (24-hr)
|1250-2049 (1-hr)
|301-500
| style="background:#7e0023; color:#fff;" |'''Hazardous'''
|}
Ka e were ya na onye nyocha na-edekọ ihe dị mma nke iri abụọ na anawa (PM2.5) nke 26.4 micrograms kwa cubic mita. Njikọ dị n'elu na-ebute AQI nke:

: <math> \frac{100 -51}{35.4 -12.1}(26.4-12.1) +51=81.073</math>

nke na-agba gburugburu na ọnụ ọgụgụ nke iri asatọ na otu kwekọrọ na ogo ikuku na "[[Moderate]]".<ref>{{Cite web|url=https://www.purakamasks.com/resources/measuringairquality|title=How does the EPA measure air quality?|date=2019-02-06|work=www.purakamasks.com|language=en|accessdate=2019-02-11|archivedate=2019-02-10|archiveurl=https://web.archive.org/web/20190210044504/https://www.purakamasks.com/resources/measuringairquality}}</ref> Iji gbanwee ikuku na-emetọ ikuku ka ọ bụrụ AQI, EPA emepụtala onye na-agbakọ ihe.<ref>{{Cite web|url=https://www.airnow.gov/aqi/aqi-calculator|title=AQI Calculator|accessdate=7 October 2018}}</ref>

Ọ bụrụ na a na-atụle ọtụtụ mmetọ na ebe nlekota, mgbe ahụ, a na-akọ akụkọ kachasị ukwuu ma ọ bụ "nke kachasị" AQI maka ebe ahụ. A na-agbakọ ozone AQI n'etiti otu narị na narị atọ site na ịhọrọ nke ka ukwuu n'ime AQI gbakọrọ na uru ozone nke otu awa na AQI gbakwunyere na uru ozoni nke awa asatọ.

Nkezi nke ozone awa asatọ anaghị akọwapụta ọnụọgụ AQI karịrị narị atọ A na-agbakọ ọnụọgụ nke AQI nke narị atọ na otu  ma ọ bụ karịa na otu awa ozone concentrations. Otú awa SO2 ọnụọgụ anaghị akọwa ọnụọgụ dị elu nke AQI karịrị narị abụọ. A na-agbakọ ọnụọgụ AQI nke narị abụọ na otu ma ọ bụ karịa na awa iri abụọ na anọ SO2 concentrations.

Nlekota data oge site na nyocha na-aga n'ihu na-adịkarị dị ka nkezi otu awa. Otú ọ dị, ngụkọta nke AQI maka ụfọdụ mmetọ chọrọ nkezi karịa ọtụtụ awa nke data.  (Dị ka ọmụmaatụ, ngụkọta nke ozone AQI chọrọ ngụkọta maka nkezi awa asatọ na ngụkọta PM2.5 ma ọ bụ PM10 AQI chọrọ nkezi awa 24.) Iji gosipụta n'ụzọ ziri ezi àgwà ikuku dị ugbu a, nkezi ọtụtụ awa eji eme ihe maka nchịkọta AQI kwesịrị ka ọ dabere na oge dị ugbu a. mana dịka a maghị oke nke awa ndị ga-abịa n'ọdịnihu ma sie ike ịkọwa n'ụzọ doro anya, EPA na-eji oke nnọchi anya iji tụọ nkezi ọtụtụ oge ndị a. Maka ịkọ akụkọ PM2.5, PM10 na ozone air quality indices, a na-akpọ ntinye a NowCast. Nowcast bụ otu ụdị nkezi dị arọ nke na-enyewanye arọ na data ikuku kachasị ọhụrụ mgbe ọkwa mmetọ ikuku na-agbanwe.<ref>{{Cite web|url=http://www.airnowapi.org/aq101|title=AirNow API Documentation|accessdate=20 August 2015}}</ref><ref>{{Cite web|url=http://airnow.supportportal.com/link/portal/23002/23002/Article/16115/How-are-your-ozone-maps-calculated|title=How are your ozone maps calculated?|accessdate=20 August 2015|archiveurl=https://web.archive.org/web/20150821160233/http://airnow.supportportal.com/link/portal/23002/23002/Article/16115/How-are-your-ozone-maps-calculated|archivedate=21 August 2015}}</ref> Enwere ọrụ ndenye aha email n'efu maka ndị bi na New York bụ AirNYC.<ref>{{Cite web|url=https://aerostate.io/cases/airnyc/|title=AirNYC - Air quality in New York. Online.|accessdate=10 August 2017|archivedate=22 May 2017|archiveurl=https://web.archive.org/web/20170522194431/https://aerostate.io/cases/airnyc/}}</ref> Ndị debanyere aha na-enweta ọkwa banyere mgbanwe na ụkpụrụ AQI maka ebe ahọrọ (dịka adreesị ụlọ), dabere na ọnọdụ ikuku.

==== Ọnụnọ ọha na eze nke AQI ====
[[Usòrò:Global_air_pollution_map.png|thumb|Map nke ikuku zuru ụwa ọnụ]]
Ezigbo oge nlekota data na amụma nke ikuku dị mma nke nwere koodu agba n'ihe gbasara akara ikuku dị mma dị na ebe nrụọrụ akpọrọ weebụ AirNow nke EPA.<ref>{{Cite web|url=http://www.airnow.gov/|title=AirNow|accessdate=9 August 2012|archiveurl=https://web.archive.org/web/20051124065307/http://www.airnow.gov/|archivedate=24 November 2005}}.</ref> Òtù ndị ọzọ na-enye nlekota maka ndị otu ndị na-emetụta dịka ndị ụkwara ume ọkụ, ụmụaka na ndị okenye karịrị afọ iri isii na .<ref>{{Cite web|url=https://www.cleanairresources.com/tools/aqi_lookup|title=Air Quality Lookup for Children, Seniors and Sensitive Groups|work=www.cleanairresources.com|language=en|accessdate=2019-09-19|archivedate=2019-12-21|archiveurl=https://web.archive.org/web/20191221162504/https://www.cleanairresources.com/tools/aqi_lookup}}</ref> Akụkọ ihe mere eme nke nlekota ikuku gụnyere chaatị na map AQI dị na ebe nrụọrụ weebụ AirData nke EPA.<ref>{{Cite web|url=http://www.epa.gov/airdata/|title=AirData|date=8 July 2014|publisher=US Environmental Protection Agency|accessdate=20 August 2015}}</ref> Map zuru ezu banyere ọkwa AQI ugbu a na amụma ụbọchị abụọ ya dị na ebe nrụọrụ weebụ Aerostate.<ref>{{Cite web|url=https://browser.aerostate.io/|title=Aerostate AQI map|work=aerostate.io|accessdate=13 February 2018|archivedate=15 February 2018|archiveurl=https://web.archive.org/web/20180215204232/https://browser.aerostate.io/}}</ref>

==== Akụkọ ihe mere eme nke AQI ====
AQI mere nke mbụ ya na afọ 1968, mgbe ndị akpọrọ na bekee National Air Pollution Control Administration mere atụmatụ iji mepụta akara ngosi ikuku na itinye usoro ahụ na Metropolitan Statistical Areas. Ihe kpaliri ya bụ ịdọrọ uche ọha na eze n'ihe gbasara mmetọ ikuku ma mee ka ndị ọrụ gọọmentị dị n'ógbè ahụ mee ihe iji chịkwaa isi mmalite nke mmetọ ma melite ikuku n'ime ikike ha.

Jack Fensterstock, bụ onye isi nke National Inventory of Air Pollution Emissions and Control Branch, e nyere ya ọrụ iduzi mmepe nke usoro na ịchịkọta ogo ikuku na data ikuku dị mkpa iji nwalee ma nyochaa ihe ngosi ndị si na ya pụta.<ref>J.C Fensterstock et al., " The Development and Utilization of an Air Quality Index," Paper No. 69–73, presented at the 62nd Annual Meeting of the Air Pollution Control Administration, June 1969.</ref>

Nchịkọta mbụ nke akara ngosi ikuku jiri ọnụ ọgụgụ mmetọ gburugburu ebe obibi mee ihe iji nweta akara mmetọ nke ọ bụla.  A na-atụle ihe ngosi ndị a ma chịkọta ha iji mepụta otu ngụkọta ikuku. Usoro n'ozuzu ya nwere ike iji ntinye nke a na-ewere site na data nlekota gburugburu ma ọ bụ na-ebu amụma site na ụdị mgbasa. A na-agbanwezi njupụta ahụ ka ọ bụrụ nkesa ọnụ ọgụgụ dị mma nke nwere ihe a kapịrị ọnụ na ntụgharị dị mma. A na-ewere na ihe ndị na-emetọ ihe n'otu n'otu na-atụle ya, ọ bụ ezie na enwere ike iji ụkpụrụ ndị ọzọ karịa ịdị n'otu. N'otu aka ahụ, ndepụta ahụ nwere ike itinye ọnụ ọgụgụ ọ bụla nke mmetọ ọ bụ ezie na a na-eji ya ejikọta SOx, CO, na TSP n'ihi enweghị data dị maka mmetọ ndị ọzọ.

Ọ bụ ezie na e mere usoro ahụ ka ọ sie ike, ngwa bara uru maka mpaghara obodo niile gosipụtara na ọ naghị ekwekọ n'ihi ụkọ data nlekota ikuku, enweghị nkwekọrịta na ihe ndị dị arọ, na enweghị otu ụkpụrụ ikuku gafee ókèala ala na ndọrọ ndọrọ ọchịchị. N'agbanyeghị nsogbu ndị a, mbipụta nke ndepụta nke mpaghara ndị mepere emepe mezuru ebumnuche iwu ọha na eze ma mee ka mmepe nke ihe ngosi ka mma n'ọdịnihu na itinye ha n'ọrụ.

== Hụkwa ==
 

* [[Mmetọ ikuku]]
* Nlele nke mmetọ ikuku
* Ọnọdụ ikuku ime ụlọ
* [[Ntụle mmetọ ikuku]]

== Edemsibia ==
{{Reflist|30em|refs=<ref name="aqnow_indices_web">{{cite web|url=http://www.airqualitynow.eu/about_indices_definition.php|title=Indices definition|publisher=Air quality|access-date=9 August 2012}}</ref>

<ref name="CAQI_definition">{{cite web| last1 =CiteairII — Common Information to European Air| title =CAQI Air quality index — Comparing Urban Air Quality across Borders – 2012| date =2012-07-09| url =https://www.airqualitynow.eu/download/CITEAIR-Comparing_Urban_Air_Quality_across_Borders.pdf| access-date =2018-02-18| archive-url =https://web.archive.org/web/20160222064802/http://www.airqualitynow.eu/download/CITEAIR-Comparing_Urban_Air_Quality_across_Borders.pdf| archive-date =2016-02-22| url-status =live}}</ref>

<ref name="EAQI_announce">{{cite web| title =European Air Quality Index: current air quality information at your finger tips| publisher =European Environment Agency| date =2017-11-16| url =https://www.eea.europa.eu/highlights/european-air-quality-index-current| access-date =2018-02-19| archive-url =https://web.archive.org/web/20171224214039/https://www.eea.europa.eu/highlights/european-air-quality-index-current| archive-date =2017-12-24| url-status =live}}</ref>}}

== Njikọ mpụga ==
Ụfọdụ n'ime ebe nrụọrụ weebụ ndị na-esonụ na-egosipụta map ikuku dị mma; ndị ọzọ bụ nsụgharị echekwara nke ebe nrụọrụọrụ weebụ na-adịghị arụ ọrụ:

* Ụwa:
** [http://aqicn.org/map/world/#@g/2.0574/7.9102/2z Mmetọ ikuku n'ụwa niile: Real-time Air Quality Index Visual Map]
* Europe:
** [http://www.airqualitynow.eu/index.php CAQI-] AirNow
** [http://www.eea.europa.eu/themes/air/air-quality-index EAQI] - European Environment Agency
** [https://web.archive.org/web/20081107223848/http://www.airquality.co.uk/archive/index.php UK Air Quality Archive]
* North America:
** AQI na airnow.gov - ebe nrụọrụ weebụ gọọmentị US
** [https://web.archive.org/web/20070623011137/http://air.state.nm.us/ New Mexico Air Quality na data API] - Ihe atụ nke otu Ngalaba Na-ahụ Maka Gburugburu Ebe Obibi nke New Mexico si bipụta data Air Quality na API ha.
** [https://web.archive.org/web/20060706053637/http://www.msc-smc.ec.gc.ca/aq_smog/index_e.cfm AQI na Meteorological Service nke Canada]
** San Francisco Bay Area Spare-the-Air - nkọwa AQI
* Eshia:
** CAI na Airkorea.or.kr - ebe nrụọrụ weebụ nke South Korea Environmental Management Corp.
** [http://www.doe.gov.my/index.php?option=com_content&task=view&id=188&Itemid=370&lang=en API na JAS (Malaysian Department of Environment)]
** Malaysia Air Pollution Index (adịghị arụ ọrụ ''{{As of|2018|02|19}}'' nke 19 ''<span data-ve-ignore="true">Febụwarị</span>'' 2018[update])''[[Category:Articles containing potentially dated statements from February 2018]] [[Category:All articles containing potentially dated statements]]''
** [https://web.archive.org/web/20070410055414/http://www.epd-asg.gov.hk/ API na Hong Kong] - Ngalaba Nchebe Gburugburu Ebe Obibi nke Gọọmentị nke Hong Kong Special Administrative Region (''na-adịghị arụ ọrụ'' ''{{As of|2018|02|19}}'' nke 19 ''<span data-ve-ignore="true">Febụwarị</span>'' 2018[update])''[[Category:Articles containing potentially dated statements from February 2018]] [[Category:All articles containing potentially dated statements]]''
** [https://web.archive.org/web/20170606174552/http://aqmthai.com/index.php?lang=en AQI na Thailand]
** [https://web.archive.org/web/20220614022242/http://enviinfo.cem.gov.vn/ AQI na Vietnam]
*** [https://moitruongthudo.vn/ AQI na Hanoi]
*** [https://web.archive.org/web/20170617074153/http://www.aqivn.org/en/ PM25 AQI na-abụghị nke gọọmentị na Hanoi, Vietnam]

[[Òtù:Pages with unreviewed translations]]