Air quality index (English Wikipedia)

"Air Quality Index (AQI) - A Guide to Air Quality and Your Health". US EPA. 9 December 2011. Archived from the original on 18 June 2018. Retrieved 8 August 2012.
David Mintz (September 2018). Technical Assistance Document for the Reporting of Daily Air Quality – the Air Quality Index (AQI) (PDF). North Carolina: US EPA Office of Air Quality Planning and Standards. EPA-454/B-18-007. Retrieved 15 September 2021.
"AQI Calculator". Retrieved 7 October 2018.
"AirNow". Archived from the original on 24 November 2005. Retrieved 9 August 2012..

fire.airnow.gov

"Fire and Smoke Map". fire.airnow.gov. Retrieved 2023-08-04.

airnowapi.org (Global: low place; English: low place)

"AirNow API Documentation". Retrieved 20 August 2015.

airqualitynow.eu (Global: low place; English: low place)

"Indices definition". Air quality. Retrieved 9 August 2012.
CiteairII — Common Information to European Air (2012-07-09). "CAQI Air quality index — Comparing Urban Air Quality across Borders – 2012" (PDF). Archived (PDF) from the original on 2016-02-22. Retrieved 2018-02-18.
"Home". airqualitynow.eu.

archive.today (Global: 14^th place; English: 14^th place)

"Step 2 - Dose-Response Assessment". 26 September 2013. Archived from the original on October 25, 2014. Retrieved 20 August 2015.

business-standard.com (Global: 350^th place; English: 206^th place)

"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 Quality". Business Standard India. 17 October 2014.

cem.gov.vn (Global: low place; English: low place)

"Tổng cục Môi trường ban hành Hướng dẫn kỹ thuật tính toán và công bố chỉ số chất lượng không khí Việt Nam". Archived from the original on 12 December 2019.

chosun.com (Global: 342^nd place; English: 357^th place)

english.chosun.com

"Improved Air Quality Reflected in N Seoul Tower". Chosun Ilbo. 18 May 2012. Archived from the original on 4 March 2014. Retrieved 29 July 2012.

cleanairinitiative.org (Global: low place; English: low place)

A. Scott Voorhees (24 June 2014). US Experience on Emergency Response System (PDF). 10th China City Air Quality Management Workshop Clean Air Asia & Ministry of Environmental Protection. Archived from the original (PDF) on 2014-09-03. Retrieved 2014-09-25.

cleanairresources.com (Global: low place; English: low place)

"Air Quality Lookup for Children, Seniors and Sensitive Groups". www.cleanairresources.com. Retrieved 2019-09-19.

comeap.org.uk (Global: low place; English: low place)

COMEAP. "Review of the UK Air Quality Index". COMEAP website. Archived from the original on 2011-11-15.

cpcb.nic.in (Global: low place; English: low place)

"Central Pollution Control Board". Ministry of Environment, Forest & Climate Change. Retrieved 20 August 2015.

defra.gov.uk (Global: 7,481^st place; English: 4,473^rd place)

uk-air.defra.gov.uk

"Daily Air Quality Index". Air UK Website. Defra.

doi.org (Global: 2^nd place; English: 2^nd place)

Barkjohn, Karoline K.; Gantt, Brett; Clements, Andrea L. (2021-06-22). "Development and application of a United States-wide correction for PM2.5 data collected with the PurpleAir sensor". Atmospheric Measurement Techniques. 14 (6): 4617–4637. doi:10.5194/amt-14-4617-2021. ISSN 1867-1381. PMC 8422884. PMID 34504625.
Barkjohn, Karoline K.; Holder, Amara L.; Frederick, Samuel G.; Clements, Andrea L. (January 2022). "Correction and Accuracy of PurpleAir PM2.5 Measurements for Extreme Wildfire Smoke". Sensors. 22 (24): 9669. Bibcode:2022Senso..22.9669B. doi:10.3390/s22249669. ISSN 1424-8220. PMC 9784900. PMID 36560038.

ec.gc.ca (Global: 6,416^th place; English: 4,792^nd place)

"Environment Canada - Air - AQHI categories and explanations". Ec.gc.ca. 2008-04-16. Retrieved 2011-11-11.

ecfr.gov (Global: 5,608^th place; English: 3,261^st place)

"Appendix B to Part 50—Reference Method for the Determination of Suspended Particulate Matter in the Atmosphere (High-Volume Method)". US EPA. 2023-06-29. Retrieved 2023-07-01.

epa.gov (Global: 882^nd place; English: 600^th place)

epa.gov

"Step 2 - Dose-Response Assessment". 26 September 2013. Archived from the original on October 25, 2014. Retrieved 20 August 2015.
Revised Air Quality Standards For Particle Pollution And Updates To The Air Quality Index (AQI) (PDF). North Carolina: US EPA Office of Air Quality Planning and Standards. 2013. Archived from the original (PDF) on April 11, 2013.
"pm-naaqs-air-quality-index-fact-sheet" (PDF). epa.gov. Retrieved February 9, 2024.
"Final Reconsideration of the National Ambient Air Quality Standards for Particulate Matter" (PDF). epa.gov. February 7, 2024. Retrieved February 12, 2024.
"AirData". US Environmental Protection Agency. 8 July 2014. Retrieved 20 August 2015.

gispub.epa.gov

"AirNow Interactive Map". gispub.epa.gov. Retrieved 2023-08-04.
"AirNow Interactive Map". gispub.epa.gov. Archived from the original on 2023-08-04. Retrieved 2023-08-04.

www3.epa.gov

"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" (PDF). Environmental Protection Agency. Archived from the original (PDF) on 2015-10-06. Retrieved 2015-10-05.

europa.eu (Global: 68^th place; English: 117^th place)

eea.europa.eu

"European Air Quality Index: current air quality information at your finger tips". European Environment Agency. 2017-11-16. Archived from the original on 2017-12-24. Retrieved 2018-02-19.

firstpost.com (Global: 283^rd place; English: 179^th place)

"Air Quality Index in India: When it was set up and how it is measured". Firstpost. 17 November 2021.

gov.hk (Global: low place; English: low place)

"Air Quality Health Index". Government of the Hong Kong. Retrieved 9 February 2014.

harvard.edu (Global: 18^th place; English: 17^th place)

ui.adsabs.harvard.edu

Barkjohn, Karoline K.; Holder, Amara L.; Frederick, Samuel G.; Clements, Andrea L. (January 2022). "Correction and Accuracy of PurpleAir PM2.5 Measurements for Extreme Wildfire Smoke". Sensors. 22 (24): 9669. Bibcode:2022Senso..22.9669B. doi:10.3390/s22249669. ISSN 1424-8220. PMC 9784900. PMID 36560038.

hsu.me (Global: low place; English: low place)

Hsu, Angel. "China's new Air Quality Index: How does it measure up?". Archived from the original on July 17, 2013. Retrieved 8 February 2014.

iitk.ac.in (Global: 6,454^th place; English: 4,437^th place)

home.iitk.ac.in

"Indian Air Quality Index". Archived from the original on 2014-11-07. Retrieved 2014-10-21.

indiatimes.com (Global: 17^th place; English: 15^th place)

economictimes.indiatimes.com

"India launches index to measure air quality". timesofindia-economictimes. Retrieved 20 August 2015.

kjc.gov.my (Global: low place; English: low place)

Myanmar government (2007). "Haze". Archived from the original on 27 January 2007. Retrieved 2007-02-11.

legislation.gov.au (Global: 6,658^th place; English: 4,027^th place)

"National Environment Protection (Ambient Air Quality) Measure". 3 February 2016. Archived from the original on 2020-07-25. Retrieved 1 January 2020.

lung.org (Global: low place; English: low place)

"Air Quality Index - American Lung Association". American Lung Association. Archived from the original on 28 August 2015. Retrieved 20 August 2015.

mep.gov.cn (Global: low place; English: low place)

kjs.mep.gov.cn

"环境空气质量标准" [Ambient Air Quality Standards] (PDF). Ministry of Environmental Protection of the People's Republic of China (in Chinese). 2012-03-02. Archived from the original (PDF) on 2017-07-21. Retrieved 2018-02-02.
"环境空气质量指数(AQI) 技术规定(试行)" [Technical Regulation on Ambient Air Quality Index (on trial)] (PDF). Ministry of Environmental Protection of the People's Republic of China (in Chinese). 2012-03-02. Archived from the original (PDF) on 2018-08-30. Retrieved 2018-02-02.

mewr.gov.sg (Global: low place; English: low place)

app.mewr.gov.sg

"MEWR - Key Environment Statistics - Clean Air". App.mewr.gov.sg. 2011-06-08. Archived from the original on 2011-10-09. Retrieved 2011-11-11.

moh.gov.sg (Global: low place; English: low place)

"FAQ: Use of masks and availability of masks". Archived from the original on 2018-06-22. Retrieved 20 August 2015.

nea.gov.sg (Global: low place; English: low place)

app2.nea.gov.sg

"National Environment Agency - Calculation of PSI" (PDF). Archived from the original (PDF) on 2013-05-15. Retrieved 2012-06-15.
"PSI", National Environment Agency website, 2014-09-15, archived from the original on 2014-12-23, retrieved 2025-10-22

nih.gov (Global: 4^th place; English: 4^th place)

ncbi.nlm.nih.gov

Barkjohn, Karoline K.; Gantt, Brett; Clements, Andrea L. (2021-06-22). "Development and application of a United States-wide correction for PM2.5 data collected with the PurpleAir sensor". Atmospheric Measurement Techniques. 14 (6): 4617–4637. doi:10.5194/amt-14-4617-2021. ISSN 1867-1381. PMC 8422884. PMID 34504625.
Barkjohn, Karoline K.; Holder, Amara L.; Frederick, Samuel G.; Clements, Andrea L. (January 2022). "Correction and Accuracy of PurpleAir PM2.5 Measurements for Extreme Wildfire Smoke". Sensors. 22 (24): 9669. Bibcode:2022Senso..22.9669B. doi:10.3390/s22249669. ISSN 1424-8220. PMC 9784900. PMID 36560038.

pubmed.ncbi.nlm.nih.gov

Barkjohn, Karoline K.; Gantt, Brett; Clements, Andrea L. (2021-06-22). "Development and application of a United States-wide correction for PM2.5 data collected with the PurpleAir sensor". Atmospheric Measurement Techniques. 14 (6): 4617–4637. doi:10.5194/amt-14-4617-2021. ISSN 1867-1381. PMC 8422884. PMID 34504625.
Barkjohn, Karoline K.; Holder, Amara L.; Frederick, Samuel G.; Clements, Andrea L. (January 2022). "Correction and Accuracy of PurpleAir PM2.5 Measurements for Extreme Wildfire Smoke". Sensors. 22 (24): 9669. Bibcode:2022Senso..22.9669B. doi:10.3390/s22249669. ISSN 1424-8220. PMC 9784900. PMID 36560038.

pib.gov.in (Global: 2,141^st place; English: 1,160^th place)

"National Air Quality Index (AQI) launched by the Environment Minister AQI is a huge initiative under 'Swachh Bharat'". pib.gov.in.

pib.nic.in (Global: 1,184^th place; English: 835^th place)

"National Air Quality Index (AQI) launched by the Environment Minister AQI is a huge initiative under 'Swachh Bharat'". Retrieved 20 August 2015.

ppsthane.com (Global: low place; English: low place)

"Ambient Air Quality Monitoring Stations". 2016-08-15. Retrieved 2016-08-16.

sparetheair.org (Global: low place; English: low place)

"Spare the Air - Summer Spare the Air". Archived from the original on 11 June 2018. Retrieved 20 August 2015.

supportportal.com (Global: low place; English: low place)

airnow.supportportal.com

"How are your ozone maps calculated?". Archived from the original on 21 August 2015. Retrieved 20 August 2015.

waqi.info (Global: low place; English: low place)

"World Air Quality Index". Retrieved 20 August 2015.

washingtonpost.com (Global: 34^th place; English: 27^th place)

Rama Lakshmi (October 17, 2014). "India launches its own Air Quality Index. Can its numbers be trusted?". Washington Post. Retrieved August 20, 2015.

web.archive.org (Global: 1^st place; English: 1^st place)

Myanmar government (2007). "Haze". Archived from the original on 27 January 2007. Retrieved 2007-02-11.
"Air Quality Index - American Lung Association". American Lung Association. Archived from the original on 28 August 2015. Retrieved 20 August 2015.
"Spare the Air - Summer Spare the Air". Archived from the original on 11 June 2018. Retrieved 20 August 2015.
"FAQ: Use of masks and availability of masks". Archived from the original on 2018-06-22. Retrieved 20 August 2015.
A. Scott Voorhees (24 June 2014). US Experience on Emergency Response System (PDF). 10th China City Air Quality Management Workshop Clean Air Asia & Ministry of Environmental Protection. Archived from the original (PDF) on 2014-09-03. Retrieved 2014-09-25.
"Air Quality Index (AQI) - A Guide to Air Quality and Your Health". US EPA. 9 December 2011. Archived from the original on 18 June 2018. Retrieved 8 August 2012.
"National Environment Protection (Ambient Air Quality) Measure". 3 February 2016. Archived from the original on 2020-07-25. Retrieved 1 January 2020.
Hsu, Angel. "China's new Air Quality Index: How does it measure up?". Archived from the original on July 17, 2013. Retrieved 8 February 2014.
"环境空气质量标准" [Ambient Air Quality Standards] (PDF). Ministry of Environmental Protection of the People's Republic of China (in Chinese). 2012-03-02. Archived from the original (PDF) on 2017-07-21. Retrieved 2018-02-02.
"环境空气质量指数(AQI) 技术规定(试行)" [Technical Regulation on Ambient Air Quality Index (on trial)] (PDF). Ministry of Environmental Protection of the People's Republic of China (in Chinese). 2012-03-02. Archived from the original (PDF) on 2018-08-30. Retrieved 2018-02-02.
CiteairII — Common Information to European Air (2012-07-09). "CAQI Air quality index — Comparing Urban Air Quality across Borders – 2012" (PDF). Archived (PDF) from the original on 2016-02-22. Retrieved 2018-02-18.
"European Air Quality Index: current air quality information at your finger tips". European Environment Agency. 2017-11-16. Archived from the original on 2017-12-24. Retrieved 2018-02-19.
"Indian Air Quality Index". Archived from the original on 2014-11-07. Retrieved 2014-10-21.
"MEWR - Key Environment Statistics - Clean Air". App.mewr.gov.sg. 2011-06-08. Archived from the original on 2011-10-09. Retrieved 2011-11-11.
"National Environment Agency - Calculation of PSI" (PDF). Archived from the original (PDF) on 2013-05-15. Retrieved 2012-06-15.
"PSI", National Environment Agency website, 2014-09-15, archived from the original on 2014-12-23, retrieved 2025-10-22
"What's CAI". Air Korea. Archived from the original on 22 June 2018. Retrieved 25 October 2015.
"Improved Air Quality Reflected in N Seoul Tower". Chosun Ilbo. 18 May 2012. Archived from the original on 4 March 2014. Retrieved 29 July 2012.
COMEAP. "Review of the UK Air Quality Index". COMEAP website. Archived from the original on 2011-11-15.
Revised Air Quality Standards For Particle Pollution And Updates To The Air Quality Index (AQI) (PDF). North Carolina: US EPA Office of Air Quality Planning and Standards. 2013. Archived from the original (PDF) on April 11, 2013.
"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" (PDF). Environmental Protection Agency. Archived from the original (PDF) on 2015-10-06. Retrieved 2015-10-05.
"How are your ozone maps calculated?". Archived from the original on 21 August 2015. Retrieved 20 August 2015.
"AirNow". Archived from the original on 24 November 2005. Retrieved 9 August 2012..
"AirNYC - Air quality in New York. Online". Archived from the original on 22 May 2017. Retrieved 10 August 2017.
"Aerostate AQI map". aerostate.io. Archived from the original on 15 February 2018. Retrieved 13 February 2018.
"AirNow Interactive Map". gispub.epa.gov. Archived from the original on 2023-08-04. Retrieved 2023-08-04.
"Tổng cục Môi trường ban hành Hướng dẫn kỹ thuật tính toán và công bố chỉ số chất lượng không khí Việt Nam". Archived from the original on 12 December 2019.

worldcat.org (Global: 5^th place; English: 5^th place)

search.worldcat.org

Barkjohn, Karoline K.; Gantt, Brett; Clements, Andrea L. (2021-06-22). "Development and application of a United States-wide correction for PM2.5 data collected with the PurpleAir sensor". Atmospheric Measurement Techniques. 14 (6): 4617–4637. doi:10.5194/amt-14-4617-2021. ISSN 1867-1381. PMC 8422884. PMID 34504625.
Barkjohn, Karoline K.; Holder, Amara L.; Frederick, Samuel G.; Clements, Andrea L. (January 2022). "Correction and Accuracy of PurpleAir PM2.5 Measurements for Extreme Wildfire Smoke". Sensors. 22 (24): 9669. Bibcode:2022Senso..22.9669B. doi:10.3390/s22249669. ISSN 1424-8220. PMC 9784900. PMID 36560038.

wsj.com (Global: 79^th place; English: 65^th place)

Jay Timmons (13 August 2014). "The EPA's Latest Threat to Economic Growth". WSJ. Retrieved 20 August 2015.

Air quality index (English Wikipedia)

aerostate.io (Global: low place; English: low place)

aerostate.io

browser.aerostate.io

airkorea.or.kr (Global: low place; English: low place)

airnow.gov (Global: low place; English: low place)

airnow.gov

fire.airnow.gov

airnowapi.org (Global: low place; English: low place)

airqualitynow.eu (Global: low place; English: low place)

archive.today (Global: 14th place; English: 14th place)

business-standard.com (Global: 350th place; English: 206th place)

cem.gov.vn (Global: low place; English: low place)

chosun.com (Global: 342nd place; English: 357th place)

english.chosun.com

cleanairinitiative.org (Global: low place; English: low place)

cleanairresources.com (Global: low place; English: low place)

comeap.org.uk (Global: low place; English: low place)

cpcb.nic.in (Global: low place; English: low place)

defra.gov.uk (Global: 7,481st place; English: 4,473rd place)

uk-air.defra.gov.uk

doi.org (Global: 2nd place; English: 2nd place)

ec.gc.ca (Global: 6,416th place; English: 4,792nd place)

ecfr.gov (Global: 5,608th place; English: 3,261st place)

epa.gov (Global: 882nd place; English: 600th place)

epa.gov

gispub.epa.gov

www3.epa.gov

europa.eu (Global: 68th place; English: 117th place)

eea.europa.eu

firstpost.com (Global: 283rd place; English: 179th place)

gov.hk (Global: low place; English: low place)

harvard.edu (Global: 18th place; English: 17th place)

ui.adsabs.harvard.edu

hsu.me (Global: low place; English: low place)

iitk.ac.in (Global: 6,454th place; English: 4,437th place)

home.iitk.ac.in

indiatimes.com (Global: 17th place; English: 15th place)

economictimes.indiatimes.com

kjc.gov.my (Global: low place; English: low place)

legislation.gov.au (Global: 6,658th place; English: 4,027th place)

lung.org (Global: low place; English: low place)

mep.gov.cn (Global: low place; English: low place)

kjs.mep.gov.cn

mewr.gov.sg (Global: low place; English: low place)

app.mewr.gov.sg

moh.gov.sg (Global: low place; English: low place)

nea.gov.sg (Global: low place; English: low place)

app2.nea.gov.sg

nih.gov (Global: 4th place; English: 4th place)

ncbi.nlm.nih.gov

pubmed.ncbi.nlm.nih.gov

pib.gov.in (Global: 2,141st place; English: 1,160th place)

pib.nic.in (Global: 1,184th place; English: 835th place)

ppsthane.com (Global: low place; English: low place)

sparetheair.org (Global: low place; English: low place)

supportportal.com (Global: low place; English: low place)

airnow.supportportal.com

waqi.info (Global: low place; English: low place)

washingtonpost.com (Global: 34th place; English: 27th place)

web.archive.org (Global: 1st place; English: 1st place)

worldcat.org (Global: 5th place; English: 5th place)

search.worldcat.org

wsj.com (Global: 79th place; English: 65th place)

archive.today (Global: 14^th place; English: 14^th place)

business-standard.com (Global: 350^th place; English: 206^th place)

chosun.com (Global: 342^nd place; English: 357^th place)

defra.gov.uk (Global: 7,481^st place; English: 4,473^rd place)

doi.org (Global: 2^nd place; English: 2^nd place)

ec.gc.ca (Global: 6,416^th place; English: 4,792^nd place)

ecfr.gov (Global: 5,608^th place; English: 3,261^st place)

epa.gov (Global: 882^nd place; English: 600^th place)

europa.eu (Global: 68^th place; English: 117^th place)

firstpost.com (Global: 283^rd place; English: 179^th place)

harvard.edu (Global: 18^th place; English: 17^th place)

iitk.ac.in (Global: 6,454^th place; English: 4,437^th place)

indiatimes.com (Global: 17^th place; English: 15^th place)

legislation.gov.au (Global: 6,658^th place; English: 4,027^th place)

nih.gov (Global: 4^th place; English: 4^th place)

pib.gov.in (Global: 2,141^st place; English: 1,160^th place)

pib.nic.in (Global: 1,184^th place; English: 835^th place)

washingtonpost.com (Global: 34^th place; English: 27^th place)

web.archive.org (Global: 1^st place; English: 1^st place)

worldcat.org (Global: 5^th place; English: 5^th place)

wsj.com (Global: 79^th place; English: 65^th place)