Ghaziabad Leads India's Pollution Chart, NCR Cities Face PM2.5 Surge
Ghaziabad is India's most polluted city, with 20 NCR cities experiencing a significant rise in PM2.5 levels, highlighting outdated pollution control strategies.
Photo by David Kristianto
Quick Revision
Ghaziabad is India's most polluted city.
20 NCR cities saw a significant surge in PM2.5 levels.
Current pollution control strategies are based on an outdated 2018 report.
National Clean Air Programme (NCAP) aims to reduce PM2.5 and PM10 concentrations by 40% by 2026.
The study emphasizes the need for updated emission inventories.
Key Dates
Key Numbers
Visual Insights
NCR Air Pollution Hotspots (November 27, 2023)
This map highlights Ghaziabad as India's most polluted city and other NCR cities experiencing a significant surge in PM2.5 levels, underscoring the regional nature of the air pollution crisis.
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Evolution of Air Pollution Control Efforts in India
This timeline traces key legislative and policy developments related to air pollution control in India, highlighting the context of the current news regarding outdated data and NCAP's role.
India's journey in air pollution control has evolved from initial legislative frameworks in the 1980s to more comprehensive programs like NCAP and emergency response mechanisms like GRAP. However, the current situation highlights persistent challenges, including the need for updated data and dynamic strategies, despite these historical efforts.
- 1972Stockholm Conference on Human Environment (global impetus for environmental protection)
- 1981Air (Prevention and Control of Pollution) Act enacted
- 1985Ministry of Environment & Forests (now MoEFCC) established
- 1986Environment (Protection) Act enacted (umbrella legislation)
- 2010National Green Tribunal (NGT) established for environmental justice
- 2014MoEF renamed MoEFCC; Swachh Bharat Abhiyan launched (includes waste management aspects)
- 2016Graded Response Action Plan (GRAP) notified for NCR
- 2018Report on city-specific pollution sources (mentioned as 'outdated' in news)
- 2019 (Jan)National Clean Air Programme (NCAP) launched (initial target: 20-30% PM reduction by 2024)
- 2022NCAP target revised: 40% PM reduction by 2026
- Nov 27, 2023Ghaziabad leads India's pollution chart; NCR cities face PM2.5 surge (Current News)
Exam Angles
National Clean Air Programme (NCAP) - objectives, targets, implementation challenges.
Particulate Matter (PM2.5, PM10) - sources, health impacts, measurement.
Regulatory bodies and policies - Commission for Air Quality Management (CAQM), Graded Response Action Plan (GRAP), Air (Prevention and Control of Pollution) Act, 1981, Environment (Protection) Act, 1986.
Causes of air pollution in NCR - vehicular emissions, industrial pollution, construction dust, stubble burning, geographical and meteorological factors.
Sustainable development goals and environmental governance.
View Detailed Summary
Summary
A recent analysis of air quality data from November 27 reveals that Ghaziabad has emerged as India's most polluted city, with 20 cities in the National Capital Region (NCR) experiencing a significant surge in PM2.5 levels. This alarming trend, particularly during the winter months, points to the inadequacy of current pollution control strategies, which are reportedly based on an outdated 2018 report.
The Union Environment Ministry's National Clean Air Programme (NCAP) aims to reduce PM2.5 and PM10 concentrations by 40% by 2026, but the reliance on old data for city-specific action plans raises concerns about their effectiveness. The study highlights the need for updated emission inventories and more dynamic strategies to tackle the severe air pollution crisis in the region.
Background
Air pollution has been a persistent and growing concern in India, particularly in the National Capital Region (NCR), for over a decade. The problem intensifies during winter months due to meteorological factors like temperature inversion and reduced wind speed, trapping pollutants.
Historical efforts include the Air (Prevention and Control of Pollution) Act, 1981, and the Environment (Protection) Act, 1986. However, the scale of the problem necessitated more targeted interventions like the National Clean Air Programme (NCAP) and the establishment of the Commission for Air Quality Management (CAQM) in NCR.
Latest Developments
The recent analysis highlights Ghaziabad as India's most polluted city, with 20 NCR cities experiencing a significant surge in PM2.5 levels. A critical finding is the reliance of current pollution control strategies, including city-specific action plans under NCAP, on outdated emission inventories from 2018.
This raises concerns about the effectiveness of these plans in achieving the NCAP's target of 40% reduction in PM2.5 and PM10 concentrations by 2026. The news underscores the urgent need for updated data and more dynamic, real-time strategies.
Practice Questions (MCQs)
1. Consider the following statements regarding the National Clean Air Programme (NCAP) in India: 1. It aims to achieve a 40% reduction in PM2.5 and PM10 concentrations by 2026, with 2017 as the base year. 2. NCAP is a statutory program implemented under the Air (Prevention and Control of Pollution) Act, 1981. 3. The effectiveness of city-specific action plans under NCAP is currently hampered by their reliance on outdated emission inventories. Which of the statements given above is/are correct?
- A.1 only
- B.1 and 3 only
- C.2 and 3 only
- D.1, 2 and 3
Show Answer
Answer: B
Statement 1 is correct. NCAP aims for a 40% reduction in PM2.5 and PM10 concentrations by 2026, using 2017 as the base year. Statement 2 is incorrect. NCAP is a national-level strategy to tackle air pollution, but it is not a statutory program; it is a policy initiative. Statement 3 is correct, as highlighted by the news article, the reliance on outdated 2018 emission inventories is a significant concern for the effectiveness of city-specific action plans.
2. With reference to particulate matter (PM2.5 and PM10) in ambient air, consider the following statements: 1. PM2.5, due to its smaller size, can penetrate deeper into the respiratory system and enter the bloodstream, posing more severe health risks than PM10. 2. While natural sources contribute, anthropogenic activities like vehicular emissions, industrial processes, and construction are major contributors to PM levels in urban areas. 3. The World Health Organization (WHO) provides air quality guidelines for PM2.5 and PM10, which are often stricter than national standards in many countries. Which of the statements given above is/are correct?
- A.1 only
- B.1 and 2 only
- C.2 and 3 only
- D.1, 2 and 3
Show Answer
Answer: D
Statement 1 is correct. PM2.5 (particulate matter less than 2.5 micrometers in diameter) is more dangerous than PM10 because its smaller size allows it to travel deeper into the lungs and potentially enter the bloodstream. Statement 2 is correct. While natural sources like dust storms exist, human activities are the dominant contributors to PM pollution in urban environments. Statement 3 is correct. WHO guidelines are globally recognized and are often more stringent than the national ambient air quality standards adopted by individual countries, including India.
3. In the context of air pollution control in the National Capital Region (NCR) and adjoining areas, consider the following statements: 1. The Commission for Air Quality Management (CAQM) is a statutory body established to coordinate efforts across states for air quality improvement. 2. The Graded Response Action Plan (GRAP) is a set of emergency measures implemented by CAQM based on the severity of air pollution, with specific actions for different pollution levels. 3. The Air (Prevention and Control of Pollution) Act, 1981, primarily focuses on regulating emissions from industrial and vehicular sources, rather than agricultural practices like stubble burning. Which of the statements given above is/are correct?
- A.1 only
- B.1 and 2 only
- C.2 and 3 only
- D.1, 2 and 3
Show Answer
Answer: D
Statement 1 is correct. The CAQM was established as a statutory body in 2021 through an Act of Parliament to address air pollution in the NCR and adjoining areas, replacing the Environment Pollution (Prevention and Control) Authority (EPCA). Statement 2 is correct. GRAP is a set of emergency measures that come into force based on the air quality index (AQI) and are implemented by CAQM to prevent further deterioration of air quality. Statement 3 is correct. The Air (Prevention and Control of Pollution) Act, 1981, primarily empowers the Central and State Pollution Control Boards to regulate air pollution from industrial plants, vehicles, and other stationary sources. While stubble burning contributes to air pollution, its regulation often involves other legal frameworks like the Environment (Protection) Act, 1986, and specific state-level directives, rather than being the primary focus of the 1981 Air Act.
Source Articles
Two hours from Delhi, this NCR city is the most polluted in India | The Indian Express
Delhi sixth most polluted city in country in October, Ghaziabad at third spot, Noida fourth: Report | Delhi News - The Indian Express
Top 10 Indian cities with worst and best AQI in 2025: Delhi remains stagnant at 'very poor', ‘severe’ in Hapur