Pollution, waste & sustainable development
Pollution control regimes (air, water, plastic, e-waste), India's waste-management rules, and the sustainable-development framework for UPSC GS-3.
The statutory backbone of pollution control
India's pollution-control regime rests on three pillars enacted under the constitutional mandate of Article 48A (Directive Principle: protect and improve the environment) and Article 51A(g) (Fundamental Duty). The Water (Prevention and Control of Pollution) Act, 1974 created the Central Pollution Control Board (CPCB) and the State Pollution Control Boards (SPCBs), and introduced the discharge consent mechanism. The Air (Prevention and Control of Pollution) Act, 1981 extended the same board structure to air quality and was passed to give effect to the 1972 Stockholm Conference decisions. The Environment (Protection) Act, 1986—an umbrella legislation enacted in the aftermath of the December 1984 Bhopal gas tragedy—empowers the Central Government to set standards, regulate hazardous substances and issue directions (Sections 3, 5 and 6). Almost every subordinate rule on waste is notified under the EPA, 1986.
Air and water: standards and instruments
The CPCB notifies National Ambient Air Quality Standards (NAAQS), last revised in 2009, covering 12 pollutants including PM2.5, PM10, SO2, NO2 and ozone. The National Air Quality Index (AQI), launched in 2015 under the slogan 'One Number, One Colour, One Description', classifies air from Good (0–50) to Severe (401–500). The National Clean Air Programme (NCAP), launched 2019, targets reduction of particulate pollution in 131 non-attainment cities, with a revised goal of up to 40% reduction in PM concentration by 2025–26 (against 2017 levels). For water, the Namami Gange programme (National Mission for Clean Ganga, 2014) and the Jal Shakti Ministry consolidate riverine pollution abatement. The National Green Tribunal, established under the NGT Act, 2010, adjudicates environmental disputes and applies the Polluter Pays and Precautionary principles affirmed in Vellore Citizens Welfare Forum v. Union of India (1996).
Waste-management rules of 2016 and after
A suite of rules notified in 2016 under the EPA modernised waste governance: the Solid Waste Management Rules, 2016 (segregation at source, user fees), Plastic Waste Management Rules, 2016 (amended 2021–2022 to ban identified single-use plastics from 1 July 2022 and mandate Extended Producer Responsibility), E-Waste (Management) Rules, 2016 (replaced by the 2022 Rules with an EPR-certificate regime effective 1 April 2023), Bio-Medical Waste Management Rules, 2016, Construction and Demolition Waste Rules, 2016, and Hazardous and Other Wastes Rules, 2016. The unifying instrument across plastic, e-waste and battery streams is Extended Producer Responsibility (EPR)—the principle that producers bear financial and operational responsibility for the post-consumer stage. The Battery Waste Management Rules, 2022 apply EPR to all battery types. Candidates should connect these to the circular-economy push and to India's Mission LiFE (Lifestyle for Environment), launched at COP26 Glasgow (2021), which reframes consumption-side behaviour as a climate strategy.