In 1970, the Clean Air Act, a sweeping suite of laws aimed at reducing pollution and monitoring the air, led to the creation of the EPA. Columbia University Economics Professor Matthew Neidell said it ...

Air quality index is used by government agencies to communicate to the public how polluted the air is. Public health risks increase as the AQI rises. Eight pollutants namely particulate matter PM10, ...

Air quality index is used by government agencies to communicate to the public how polluted the air is. Public health risks increase as the AQI rises. Eight pollutants namely particulate matter PM10, ...