Produced primarily by the burning of fossil fuels, ammonium nitrate is a substantial portion of particulate pollution, a ...

As humans continue to pump more gases into the atmosphere, you've probably seen air quality alerts more often, but what does ...

Air quality is defined as the degree to which the air of a set place is pollutant-free. In the United States, air quality is ...

Ozone is a gas comprised of three oxygen (O3) atoms. It is unstable and reacts easily to other gases. In its natural state, it is a component in several levels of the atmosphere. At high altitudes ...

Delhi's Air Quality Index (AQI) stood at 278 on May 16, within the 'Poor' category. Forecasts by the India Meteorological ...

The Minnesota Pollution Control Agency (MPCA) has issued an air quality alert Tuesday from 12 p.m. to 9 p.m. for ground-level ...

Delhi-NCR air quality improves to 'poor' with AQI at 298 after dust storm, though areas like Anand Vihar Ashok Vihar and Aya ...

The agency says air quality is expected to reach the orange Air Quality Index (AQI) category, which is unhealthy for ...

The Commission for Air Quality Management (CAQM) on Sunday revoked the Graded Response Action Plan – Stage I (GRAP-I) in the ...