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IQAir News

The Major Cities Ranking is meant to provide a worldwide context about air quality. Learn more. Read More >

Wind and weather can play a crucial role in influencing a region’s air quality. Learn more. Read More >

Carbon monoxide is an odorless, colorless gas produced by the incomplete combustion of fossil fuels (wood, oil, gas, or coal). Read More >

Particulate Matter (PM) are particles measuring 2.5 microns or less. Learn more. Read More >

A list of the different air pollutants and their sources. Read More >

Learn about indoor CO2, including when indoor CO2 is too high and how to monitor it. Read More >

Learn more about PM1 – dangerous airborne particles less than 1 micron in size. Read More >

Different methods for calculating and reporting air quality data are used by public and private entities. Read More >

See how IQAir air quality data can quantify how much air pollution costs our health and our economies. Read More >

Learn more about ultrafine particles (UFPs), which can be as small as 0.003 microns. Read More >

Learn what the air quality index (AQI) is and how it describes the safety of our air. Read More >

Any values determined to be erroneous through this data analysis process were discounted. Learn more. Read More >