Air pollution

Air quality index (AQI)

Air quality index (AQI)

A scale summarising how polluted the air is from particles and gases (PM2.5, PM10, ozone, NO2). The higher it is, the greater the health risk.

Related terms

Dust haze (calima) Dust or sand suspended in the air, often from the Sahara, which clouds the sky, … UV index A 0 to 11+ scale measuring the strength of the sun's ultraviolet radiation. From…

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Dust haze (calima)
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