Major sources include vehicular emissions, industrial emissions, construction dust, biomass burning (including stubble burning), domestic fuel burning, and waste burning.

Key pollutants monitored are Particulate Matter (PM2.5, PM10), Nitrogen Oxides (NOx), Sulfur Dioxide (SO2), Carbon Monoxide (CO), Ozone (O3), Lead, and Ammonia (NH3).

Impacts range from respiratory and cardiovascular diseases to reduced visibility, acid rain, climate change, and damage to crops and historical monuments.

Monitoring is conducted through programs like the National Air Quality Monitoring Programme (NAMP) and Continuous Ambient Air Quality Monitoring Stations (CAAQMS).

The National Air Quality Index (AQI) provides a simple tool to communicate air quality status, categorizing it from 'Good' to 'Severe'.

Mitigation strategies include implementing stricter emission norms (e.g., BS-VI), traffic management schemes (e.g., odd-even), the Graded Response Action Plan (GRAP), and the National Clean Air Programme (NCAP).

Challenges involve the multi-sectoral nature of sources, inter-state coordination issues, enforcement gaps, meteorological factors, and the need for public awareness.

Focus on promoting public transport, electric vehicles, renewable energy sources, and cleaner industrial technologies.

Major sources include vehicular emissions, industrial emissions, construction dust, biomass burning (including stubble burning), domestic fuel burning, and waste burning.

Key pollutants monitored are Particulate Matter (PM2.5, PM10), Nitrogen Oxides (NOx), Sulfur Dioxide (SO2), Carbon Monoxide (CO), Ozone (O3), Lead, and Ammonia (NH3).

Impacts range from respiratory and cardiovascular diseases to reduced visibility, acid rain, climate change, and damage to crops and historical monuments.

Monitoring is conducted through programs like the National Air Quality Monitoring Programme (NAMP) and Continuous Ambient Air Quality Monitoring Stations (CAAQMS).

The National Air Quality Index (AQI) provides a simple tool to communicate air quality status, categorizing it from 'Good' to 'Severe'.

Mitigation strategies include implementing stricter emission norms (e.g., BS-VI), traffic management schemes (e.g., odd-even), the Graded Response Action Plan (GRAP), and the National Clean Air Programme (NCAP).

Challenges involve the multi-sectoral nature of sources, inter-state coordination issues, enforcement gaps, meteorological factors, and the need for public awareness.

Focus on promoting public transport, electric vehicles, renewable energy sources, and cleaner industrial technologies.