Global Air Quality Guidelines

The Global AIR Quality Guidelines (AQGs) of the World Health Organization recommends air quality levels to protect the health of population based on scientific evidences. The WHO recently revised the AQGs for the first time since 2005, marking an increased evidence of adverse effects caused by air pollution on health.
The revised guidelines recommended air quality levels for six pollutants – particulate matter (PM), ozone (O?), nitrogen dioxide (NO?) sulfur dioxide (SO?) and carbon monoxide (CO) – that cause heath problems and give rise to other hazardous pollutants. Though these guidelines are not legally binding, it is used by policymakers as a tool to maintain/reduce the levels of air pollutants and decrease the burden of diseases caused by air pollution.

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