Air pollutants are known for their adverse effects on human health and ecosystems. Some of these pollutants also erode technical infrastructure and cultural monuments. Emissions of nitrogen oxides and non-methane volatile organic compounds are the main causes of the formation of ground-level ozone, which has adverse effects on human health and ecosystems.

Air pollutants originate from sources such as vehicle emissions, refineries, power plants, industrial and laboratory processes. Pollutants include sulfur dioxide, nitrogen dioxide, carbon monoxide and volatile organic compounds.

Air pollution is a growing concern in developing countries like us. The MoEF&CC has even introduced air pollution standards expected from all its member states to be met.