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IQAir News

Featured Article

Revealing the Invisible: Michigan community center promotes air quality awareness

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A small Midwestern town is embracing clean air activism at its community enrichment center. Discover how Mike Nazarian empowers his neighbors by sharing vital air quality info.
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What does the asterisk (*) mean on some locations' AQI?

An asterisk may be visible on some location’s AQI. Learn more. Read More >
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Reasons for different AQI numbers.

Here are some reasons that AirVisual and AirNow may show different air quality numbers. Learn more. Read More >
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What is a "Share Code" and where can I find it

A share code lets others access your AirVisual Node/Pro’s data. Learn more. Read More >
Crop field

Ammonia

Ammonia (NH3) is a corrosive, colorless gas with a distinctive, pungent odor that causes air pollution as a secondary particulate precursor. Learn more. Read More >
Cans of spray paint

Volatile Organic Compounds

Volatile Organic Compounds (VOCs) are carbon-based gaseous chemicals that easily evaporate at room temperature. Learn how they impact air quality. Read More >
Nuclear plant exhaust

Carbon dioxide

Carbon dioxide (CO2) is a naturally occurring colorless, odorless gas formed from carbon and oxygen atoms, but can also be harmful in the air. Learn more. Read More >
Black carbon

Black carbon

Black carbon (BC) is fine particulate matter highly efficient at absorbing heat and a major element of soot formed from incomplete combustion. Learn more. Read More >
Smog in city

PM10

PM10 is particulate matter with a diameter of 10 micrometers or less. Learn more. Read More >
Factory exhaust

Sulphur dioxide

Sulfur dioxide is a highly reactive gas that reacts to form harmful compounds like sulfuric acid, sulfurous acid, and sulfate particles. Learn more. Read More >
Car exhaust pipe

Nitrogen dioxide

Nitrogen dioxide (NO2) is one of the six main measured air pollutants. Notably, it is a major contributor to the formation of smog and a precursor to many harmful secondary pollutants including ozone and particulate matter. Read More >
Dusk

Ozone

Ozone that protects our atmosphere is good. However, ground level ozone is bad. Learn more. Read More >
Factory exhaust

Carbon monoxide

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