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Air quality in the world
Air quality index (AQI) and PM2.5 air pollution in the world
Live AQI City Ranking
World major city air quality ranking
| # | city | US AQI |
|---|---|---|
| 1 |  Cairo City, Egypt | 169 |
| 2 |  Kolkata, India | 165 |
| 3 |  Hanoi, Vietnam | 157 |
| 4 |  Jakarta, Indonesia | 157 |
| 5 |  Tehran, Iran | 155 |
| 6 |  Chiang Mai, Thailand | 155 |
| 7 |  Wuhan, China | 152 |
| 8 |  Kathmandu, Nepal | 151 |
| 9 | Delhi, India | 146 |
| 10 |  Dhaka, Bangladesh | 133 |
(local time)
SEE WORLD AQI RANKING
3D animated air pollution map
AIR QUALITY DATA CONTRIBUTORS
16129 Contributors
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OVERVIEW
What city has the best air quality?
What city has the worst air quality?
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The latest air quality news and resources.
2023 AQI Country ranking
What country has the worst air quality?
| # | country | Population | 2023 AVG. US AQI |
|---|---|---|---|
| 1 | Bangladesh | 169,356,251 | 164 |
| 2 |  Pakistan | 231,402,117 | 160 |
| 3 | India | 1,407,563,842 | 147 |
| 4 |  Tajikistan | 9,750,064 | 134 |
| 5 |  Burkina Faso | 22,100,683 | 128 |
| 6 |  Iraq | 43,533,592 | 121 |
| 7 |  United Arab Emirates | 9,365,145 | 119 |
| 8 | Nepal | 30,034,989 | 118 |
| 9 | Egypt | 109,262,178 | 118 |
| 10 |  Democratic Republic of the Congo | 95,894,118 | 114 |
Which is the cleanest country in the world?
| # | country | Population | 2023 AVG. US AQI |
|---|---|---|---|
| 1 |  French Polynesia | 304,032 | 13 |
| 2 |  Mauritius | 1,266,060 | 14 |
| 3 |  Iceland | 372,520 | 17 |
| 4 |  Grenada | 124,610 | 17 |
| 5 |  Bermuda | 63,867 | 17 |
| 6 |  New Zealand | 5,122,600 | 18 |
| 7 |  Australia | 25,688,079 | 19 |
| 8 |  Puerto Rico | 3,263,584 | 19 |
| 9 |  Estonia | 1,330,932 | 20 |
| 10 |  Finland | 5,541,017 | 20 |
World air quality data attribution
16129Contributors
- China National Environmental Monitoring Centre
1595 stations
- Korea Environment Corporation
388 stations
- Thailand Pollution Control Department
125 stations
- Air Gyeonggi-Do
120 stations
- Seoul Metropolitan Government
47 stations
- U.S. Department of State
39 stations
Serbia National Network Air Quality Monitoring62 stations
Department of Environment of Malaysia65 stations
Delhi Pollution Control Committee18 stations
- DCCEEW New South Wales
93 stations
California Air Resources Board (CARB)239 stations
Shaanxi Provincial Environmental Monitoring Center156 stations
Top 20 Government Contributors
GWF Air Detective Volunteer12 stations
Greenpeace Thailand1 station
Coalition for Clean Air (CCA)262 stations
Heinrich Böll Stiftung Southeast Asia1 station
Breathe London394 stations
United Nations in Lao PDR1 station
AirKaz39 stations
Bueng Phra Subdistrict1 station
BONEVET2 stations
The Royal Bangkok Sports Club2 stations
Anya ราชพฤกษ์-นครอินทร์1 station
Sarutpat Sutthitham1 station
BGBK1 station
DKK1 station
Aires Nuevos49 stations
Južne vesti2 stations
Sai Mandir1 station
Top 20 Non-profit Organization Contributors
Panyarat High School1 station
- Prasert Sawasdiwipachai
1 station
Shrewsbury International School1 station
St. Stephen's International School1 station
- ICT
1 station
BEYC International Kindergarten1 station
St Andrews International School Bangkok2 stations
tpis1 station
International Community School Bangkok2 stations
- La Petite Ecole - International School
1 station
Roong Aroon School1 station
Sriwittayapaknam School1 station
D-PREP International School1 station
ASB1 station
- prachya
1 station
Top 20 Educational Contributors
Sansiri11 stations
Happy & Healthy Bike Lane4 stations
cafevelodome1 station
CM Mediclinic1 station
Lang Hong Goldsmith1 station
- Yip In Tsoi Group
1 station
Honey Q1 station
Ricardo Energy & Environment153 stations
- Canisorn Tar
1 station
Assegaf Hamzah & Partners1 station
RespoKare Mask6 stations
Gonggam Sensors Co., Ltd.4 stations
- Baan Siriporn Resort
1 station
LUN Misto Air81 stations
THrobotics1 station
Siam Hospital Supply Co., Ltd.2 stations
Phol Dhanya PCL1 station
IPKO Telecommunications L.L.C6 stations
NetSol Technologies1 station
Bay Developments Ltd.1 station
Top 20 Corporate Contributors
Cat Motors1 station
- JS_Trip
1 station
- Supachot Wangchinda
1 station
- Nopputta
1 station
- SHCairvisual
1 station
Paibul Chanawatr1 station
- Pornnipa Sirapongsapak
1 station
- Per Schjetne
1 station
Space Eatery1 station
Jiraruj MD.2 stations
- winita
1 station
- KaoChao
2 stations
Na Bann Nok4 stations
Nislena Co.,Ltd1 station
- patiora
1 station
- Raris
1 station
Hen San1 station
Banana2 stations
Mr Lee2 stations
Top 20 Individual Contributors
Anonymous contributor13627 stations
Anonymous Contributors
Top 100 Data sources
IQAir
PurpleAir- China National Environmental Monitoring Centre
AirNow- Korea Environment Corporation
- Thailand Pollution Control Department
European Environment Agency (EEA)- Air Gyeonggi-Do
- Seoul Metropolitan Government
- U.S. Department of State
Beijing Environmental Protection Monitoring Center
Shanghai Municipal Bureau of Ecology and Environment
Environmental Protection Administration Executive Yuan, R.O.C. (Taiwan)
Air and Noise Quality Management Division Bangkok- Serbia National Network Air Quality Monitoring
- Department of Environment of Malaysia
- Delhi Pollution Control Committee
Department of Ecology and Environment of Jiangsu ProvinceDCCEEW New South Wales
Atmospheric Environmental Regional Observation System (AEROS)- California Air Resources Board (CARB)
Environment Protection Authority for Victoria State
Incheon Metropolitan City Institute of Health and Environment- Shaanxi Provincial Environmental Monitoring Center
ICA-Índice Nacional de Calidad del Aire
Chungnam Institute of Health and Environment
Department of Ecology and Environment of Liaoning Province
Environmental Protection Department of Shandong
Development Research Center Of The State Council
ACT Government
Indonesian Meteorology, Climatology, and Geophysics Council 
Department of Ecology and Environment of Hebei Province
Inspekcja Ochrony Środowiska
Provincial Inspectorate for Environmental Protection in Łódź
Hebei Provincial Environmental Air Quality Release System 
Busan Metropolitan City
Enviromental Protection Department - The Governmment of the Hong Kong SAR
National Air Quality Monitoring Network of Romania
Chongqing Ecology And Environment Bureau
Nanjing Environment Monitoring Center
Singapore National Environment Agency
Bay Area Air Quality Management District (BAAQMD)
Oregon Department of Environmental Quality
Department of Ecology and Environment of Henan Province
Airparif - Association de surveillance de la qualité de lair en Île-de-France- Ricardo Energy & Environment
Clarity Movement Co.
Czech Hydrometeorological Institute
Guangzhou Municipal Ecological Environment Bureau
CiteAir - Air Quality Now Europe
Netherlands National Institute for Public Health and the Environment
Daegu Metropolitan City Institute of Health and Environment
SIM (Continuous Monitoring Center)
Department of Ecology and Environment of Anhui Province
Hunan Province Environmental Air Quality 
Kanagawa Prefectural Government
Department for Environment Food & Rural Affairs - UK AIR
Daejeon Metropolitan City
Ningbo Air Quality Real-Time Release Platform
Environmental Research Group - King's College London
Wuhan Ecological Environment Bureau- Gonggam Sensors Co., Ltd.
Ministry of Environment & Climate Change Strategy - Government of B.C
Ministarstvo gospodarstva i održivog razvoja
Washington Air Monitoring Network
Gyeongsangbuk Government Public Institute of Health and Environment
Tokyo Metropolis
Ministry of Agrarian Affairs
Yunnan Province Air Quality Publishing System
Generalitat de Catalunya
Department of Ecology and Environment of Shanxi Province
Atmo Auvergne-Rhône-Alpes
Umweltbundesamt (Österreich)
Spare the Air - Sacramento Region
Irceline - Belgian Interregional Environment Agency
Air Quality Portal of Macedonia
Principality of Asturias
Zhejiang Ecological Environment Department
Dubai Municipality - Environment Department
Metro Vancouver
Fujian Province Environmental Air Quality
Croatian Meteorological and Hydrological Service
Federal Hydrometherological Office of Bosnia-Herzegovina
North Rhine Westphalia State Office for Nature, Environment and Consumer Protection
Heilongjiang Provincial Environmental Monitoring Center
Colorado Department of Public Health & Environment (CDPHE)
Government of Ontario, Ministry of the Environment
Jeju Special Self-Governing Province
LEPL Atmospheric Air Quality Portal
LUBW Landesanstalt für Umwelt Baden-Württemberg 
Ministerio del Medio Ambiente de Chile- LUN Misto Air
Ayuntamiento de Madrid
Environment Agency - ABU DHABI
Ulsan Institute of Health and Environment 
Queensland Government, Department of Environment and Science
Instituto Nacional de Ecologia y Cambio Climatico (INECC)
City of Montreal - Official Air Quality Monitoring Portal
Osaka Prefectural Government- AirKaz
What is the most polluted country/region in the world?
- Afghanistan
- Aland Islands
- Albania
- Algeria
- American Samoa
- Andorra
- Angola
- Anguilla
- Antigua and Barbuda
- Argentina
- Armenia
- Australia
- Austria
- Azerbaijan
- Bahamas
- Bahrain
- Bangladesh
- Barbados
- Belarus
- Belgium
- Belize
- Benin
- Bermuda
- Bhutan
- Bolivia
- Bonaire, Saint Eustatius and Saba
- Bosnia Herzegovina
- Botswana
- Brazil
- Brunei
- Bulgaria
- Burkina Faso
- Burundi
- Cambodia
- Cameroon
- Canada
- Cape Verde
- Cayman Islands
- Central African Republic
- Chad
- Chile
- China
- Colombia
- Comoros
- Costa Rica
- Croatia
- Cuba
- Curacao
- Cyprus
- Czech Republic
- Democratic Republic of the Congo
- Denmark
- Djibouti
- Dominica
- Dominican Republic
- Ecuador
- Egypt
- El Salvador
- Equatorial Guinea
- Eritrea
- Estonia
- Ethiopia
- Faroe Islands
- Fiji
- Finland
- France
- French Polynesia
- Gabon
- Gambia
- Georgia
- Germany
- Ghana
- Greece
- Greenland
- Grenada
- Guam
- Guatemala
- Guernsey
- Guinea
- Guinea-Bissau
- Guyana
- Haiti
- Honduras
- Hong Kong SAR
- Hungary
- Iceland
- India
- Indonesia
- Iran
- Iraq
- Ireland
- Isle of Man
- Israel
- Italy
- Ivory Coast
- Jamaica
- Japan
- Jersey
- Jordan
- Kazakhstan
- Kenya
- Kosovo
- Kuwait
- Kyrgyzstan
- Laos
- Latvia
- Lebanon
- Lesotho
- Liberia
- Libya
- Liechtenstein
- Lithuania
- Luxembourg
- Macao SAR
- Madagascar
- Malawi
- Malaysia
- Maldives
- Mali
- Malta
- Mauritania
- Mauritius
- Mexico
- Moldova
- Monaco
- Mongolia
- Montenegro
- Montserrat
- Morocco
- Mozambique
- Myanmar
- Namibia
- Nepal
- Netherlands
- New Caledonia
- New Zealand
- Nicaragua
- Niger
- Nigeria
- North Macedonia
- Norway
- Oman
- Pakistan
- Palestinian Territory
- Panama
- Papua New Guinea
- Paraguay
- Peru
- Philippines
- Poland
- Portugal
- Puerto Rico
- Qatar
- Republic of the Congo
- Romania
- Russia
- Rwanda
- Saint Helena
- Saint Lucia
- Saint Vincent and the Grenadines
- San Marino
- Sao Tome and Principe
- Saudi Arabia
- Senegal
- Serbia
- Seychelles
- Sierra Leone
- Singapore
- Slovakia
- Slovenia
- Somalia
- South Africa
- South Korea
- South Sudan
- Spain
- Sri Lanka
- Sudan
- Suriname
- Svalbard and Jan Mayen
- Swaziland
- Sweden
- Switzerland
- Syria
- Taiwan
- Tajikistan
- Tanzania
- Thailand
- Timor Leste
- Togo
- Tonga
- Trinidad and Tobago
- Tunisia
- Turkey
- Turkmenistan
- U.S. Virgin Islands
- USA
- Uganda
- Ukraine
- United Arab Emirates
- United Kingdom
- Uruguay
- Uzbekistan
- Venezuela
- Vietnam
- Yemen
- Zambia
- Zimbabwe
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