Air quality in India refers to the measurable levels of pollutants — particulate matter, ozone, nitrogen oxides, and others — in the country's atmosphere, shap…
Enacted just months after Independence, the Factories Act 1948 included provisions requiring adequate ventilation and dust suppression inside industrial premises — the e…
India participated in the first UN Conference on the Human Environment in Stockholm in June 1972, where Prime Minister Indira Gandhi delivered a landmark address linking…
Nine years after Stockholm, India passed its first law aimed specifically at air pollution. The Air Act 1981 established Central and State Pollution Control Boards (CPCB…
In the early hours of 3 December 1984, a methyl isocyanate gas leak from Union Carbide India Limited's pesticide plant in Bhopal killed an estimated 3,787 people immedia…
Enacted under Article 253 of the Constitution — which allows Parliament to legislate for international treaty obligations — the Environment Protection Act 1986 was a dir…
In a series of orders in the M.C. Mehta vs. Union of India case, the Supreme Court directed that all Delhi public transport buses — numbering over 10,000 — must convert…
On 17 September 2014, Prime Minister Narendra Modi's government launched the National Air Quality Index (AQI) under the 'Swachh Bharat' initiative, with the CPCB operati…
In the first week of November 2016, Delhi's AQI crossed 999 — the upper limit of instruments — as post-Diwali firecracker smoke combined with stubble burning from Punjab…
Launched in January 2019 by the Ministry of Environment, Forest and Climate Change (MoEFCC), the National Clean Air Programme (NCAP) was India's first comprehensive, tim…
The IQAir World Air Quality Report 2023, released in March 2024, ranked India as the third most polluted country globally by average PM2.5 concentration, with an annual…
In November 2024, the Commission for Air Quality Management (CAQM) — a statutory body created in 2021 to coordinate pollution control across Delhi-NCR and adjoining stat…
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