What is Environmental Pollution (Air Pollution)?
Historical Background
Key Points
6 points- 1.
Sources: Major anthropogenic sources include vehicular emissions, industrial emissions, thermal power generation, construction activities, road dust, biomass burning (agricultural stubble, domestic), and waste burning.
- 2.
Major Pollutants: Key pollutants are Particulate Matter (PM2.5, PM10), Nitrogen Oxides (NOx), Sulphur Dioxide (SO2), Carbon Monoxide (CO), Ozone (O3), Lead, and Volatile Organic Compounds (VOCs).
- 3.
Health Impacts: Causes severe respiratory diseases (asthma, bronchitis, COPD), cardiovascular diseases (heart attacks, strokes), cancers, neurological disorders, and contributes to premature deaths.
- 4.
Environmental Impacts: Leads to acid rain, smog formation, ozone depletion, contributes to climate change, reduces visibility, and causes damage to crops and historical monuments.
- 5.
Measurement & Monitoring: Air quality is measured using parameters like Air Quality Index (AQI), monitored through a network of Continuous Ambient Air Quality Monitoring Stations (CAAQMS).
- 6.
Control Measures: Include implementing stricter emission standards (e.g., BS-VI), improving fuel quality, promoting public transport and electric vehicles, controlling industrial emissions, managing agricultural stubble burning, and developing green infrastructure.
Visual Insights
Evolution of Air Pollution Control in India
Key historical and policy milestones in India's fight against air pollution, from legislative frameworks to recent initiatives.
India's approach to air pollution has evolved from basic legislative frameworks to comprehensive programs like NCAP and technological shifts like BS-VI and EVs, driven by increasing pollution levels and judicial interventions.
- 1972Stockholm Conference (Global environmental awareness)
- 1981Air (Prevention and Control of Pollution) Act enacted
- 1986Environment (Protection) Act enacted (Umbrella legislation)
- 1990sRapid Industrialization & Urbanization (Increased pollution)
- 2000sIntroduction of Bharat Stage (BS) emission norms (phased)
- 2010National Green Tribunal (NGT) established
- 2014-2016Delhi's 'Odd-Even' scheme pilot (Addressing vehicular pollution)
- 2019National Clean Air Programme (NCAP) launched
- 2020Bharat Stage (BS) VI emission norms implemented nationwide
- 2020-2025Increased promotion of Electric Vehicles (EVs) & renewable energy
- 2024-2025NCAP target review/extension (Initial target for 20-30% PM reduction by 2024)
- 2024-2025Continued pilot projects for Smog Towers & Anti-smog guns in severely polluted cities
NCAP Non-Attainment Cities in India (Illustrative)
An illustrative map highlighting major Indian cities identified as 'non-attainment' under the National Clean Air Programme (NCAP), indicating areas with persistently poor air quality.
- ๐Delhi โ Severe Air Pollution
- ๐Mumbai โ High Air Pollution
- ๐Kolkata โ High Air Pollution
- ๐Bengaluru โ Moderate Air Pollution
- ๐Chennai โ Moderate Air Pollution
- ๐Lucknow โ Severe Air Pollution
- ๐Kanpur โ Severe Air Pollution
- ๐Patna โ Severe Air Pollution
- ๐Ahmedabad โ High Air Pollution
- ๐Pune โ Moderate Air Pollution
- ๐Hyderabad โ Moderate Air Pollution
Recent Developments
5 developmentsThe National Clean Air Programme (NCAP), launched in 2019, aims to reduce particulate matter concentration by 20-30% by 2024 in 131 non-attainment cities.
Implementation of Bharat Stage (BS) VI emission norms for vehicles across the country.
Increased focus on promoting electric vehicles (EVs) and transitioning to renewable energy sources to reduce fossil fuel dependence.
Debates and pilot projects involving technologies like smog towers and anti-smog guns in severely polluted cities like Delhi.
Supreme Court and NGT interventions have played a significant role in pushing for stricter enforcement and new measures to combat air pollution.