Delhi has consistently ranked as the most polluted city in India, with high levels of particulate matter, nitrogen dioxide, and sulfur dioxide.

Vehicle emissions, particularly from diesel vehicles, are a major contributor to air pollution in India, especially in urban areas.

Particulate matter, especially fine particulate matter (PM2.5), is the most harmful air pollutant to human health, as it can penetrate deep into the lungs and cause respiratory and cardiovascular problems.

Air pollution can contribute to acid rain, global warming, and ozone depletion, all of which have negative impacts on the environment.

The Central Pollution Control Board, Ministry of Environment, Forest and Climate Change, and National Green Tribunal all play a role in regulating air pollution in India.

The National Clean Air Programme (NCAP) is a comprehensive program aimed at reducing air pollution in India, promoting the use of clean energy, and improving air quality in urban areas.

Promoting the use of public transportation, encouraging the use of electric vehicles, and improving energy efficiency in industries are all potential solutions to reduce air pollution in India.

Individuals can contribute to reducing air pollution by using public transportation or carpooling, reducing energy consumption at home, and planting trees.

The Air Quality Index (AQI) is a measure of air quality based on the concentration of various air pollutants, such as particulate matter, nitrogen dioxide, and sulfur dioxide.

The safe level of PM2.5 concentration in the air, as recommended by the World Health Organization (WHO), is 10 μg/m³.

Shillong, the capital of Meghalaya, consistently ranks among the cities with the best air quality in India.

Agricultural burning, particularly the burning of crop residues after harvest, is a major contributor to air pollution in rural areas of India.

Ozone, a secondary air pollutant formed by the reaction of nitrogen oxides and volatile organic compounds in the presence of sunlight, is a major component of smog.

Air pollution can have negative impacts on agriculture, including reduced crop yields, increased pest infestations, and degraded soil quality.

The Central Pollution Control Board (CPCB) is the primary government agency responsible for monitoring air quality in India.