* AQI at Meteorological Service of Canada* The UK Air Quality Archive* The pollution index of the UK Met Office* API at JAS (Malaysian Department of Environment)* API at Hong Kong - Environmental Protection Department of the Government of the Hong Kong Special Administrative Region* San Francisco Bay Area Spare-the-Air - AQI explanation* Malaysia Air Pollution Index* AQI in Thailand provinces and in Bangkok* The American Lung Association declares EPA standards fall short.
*AQI at Meteorological Service of Canada*The UK Air Quality Archive*API at JAS (Malaysian Department of Environment)*API at Hong Kong - Environmental Protection Department of the Government of the Hong Kong Special Administrative Region*San Francisco Bay Area Spare-the-Air - AQI explanation*Malaysia Air Pollution Index*AQI in Thailand provinces and in Bangkok*Unofficial PM25 AQI in Hanoi, Vietnam