AIR POLLUTION
1. Context
A recent report stated that India is home to 83 of the 100 most polluted cities in the world. Another report from the British Medical Journal estimated that air pollution led to the deaths of 2.1 million people in India, the second largest numbers after China. Over 99% of the population breathes air that is poorer than the recommended WHO standards
2. Air Pollution and its severity
According to the International Energy Associates, road transport accounts for 12% of India’s CO2 emissions, with heavy vehicles being the primary source of Particulate Matter (PM) 2.5 emissions. PM2.5 consists of tiny particles that can penetrate deeply into the lungs and enter the bloodstream, leading to various respiratory and cardiovascular issues. Heavy vehicles also play a major role in emitting Nitrogen Oxide (NOx), which has similar health effects. NOx contributes to the formation of ground-level ozone, which degrades air quality and increases heat, exacerbating air pollution in urban areas. Research shows that heavy vehicles are responsible for approximately 60-70% of vehicular PM emissions and about 40-50% of NOx emissions in cities
3. Measures to Control Air Pollution
- With the transport sector expanding at a rate of 9.1% annually, the Bureau of Energy Efficiency’s (BEE) effort to develop draft Corporate Average Fuel Economy (CAFE) standards for cars in India is both timely and commendable.
- The planned implementation timelines for CAFE III (2027-2032) and CAFE IV (2032-2037) are practical. Transitioning from the Modified India Driving Cycle (MIDC) to the World Light Duty Vehicle Testing Procedure (WLTP) starting March 31, 2027, is a positive move, as the WLTP provides a more accurate and globally standardized assessment of a vehicle's fuel consumption and CO2 emissions.
- The proposed emissions targets under CAFE III at 91.7g CO2/km and CAFE IV at 70g CO2/km are achievable. These stringent CO2 targets are crucial for fostering innovation and promoting the adoption of cleaner technologies.
- For the benefit of both the environment and public health, these targets should remain firm.
- However, it is important to note that the CAFE norms do not cover emissions from heavy vehicles such as trucks and lorries
4. Government Initiatives to Control air pollution
- In 2022, the government launched a vehicle scrappage policy aimed at retiring old and polluting vehicles, including heavy-duty ones. The policy requires passenger vehicles older than 20 years and commercial vehicles older than 15 years to pass a “fitness and emissions test.”
- Vehicles that fail these tests are deemed end-of-life, lose their registration certificates, and are recommended for scrapping.
- However, the policy has not yet been effectively implemented in Karnataka due to the limited number of scrapyards (only two in the entire state) and its voluntary nature.
- In Bangalore, many older vehicles are not four-wheelers but include older BMTC buses, private vans, and heavy vehicles.
- Maharashtra, among 21 states, has introduced incentives like road tax discounts or new vehicle purchase reductions to promote scrapping, but these measures have yet to significantly impact air pollution. It is crucial for policymakers to ensure that these guidelines are not just theoretically sound but practically enforced.
- Current government measures to address air pollution—such as regular vehicle emissions testing, banning open garbage burning, and monitoring industrial emissions—must be strictly enforced.
- While the government's efforts to reduce air pollution are commendable, it is important to emphasize that expanding mass transit is essential for a sustainable approach to tackling air pollution in India
|
For Prelims: National Clean Air Programme, Air Pollution, Particulate Matter, Clean Air Action Plans For Mains:
1. What are the challenges and opportunities presented by the National Clean Air Programme (NCAP) for improving air quality in Indian cities? Discuss the measures required to overcome implementation hurdles and ensure the effective management of air pollution. (250 Words)
|
|
Previous Year Questions
1. In the cities of our country, which among the following atmospheric gases are normally considered in calculating the value of Air Quality Index? (UPSC 2016)
Select the correct answer using the code given below: A. 1, 2 and 3 only B. 2, 3 and 4 only C. 1, 4 and 5 only D. 1, 2, 3, 4 and 5 2. Which of the following are the reasons/factors for exposure to benzene pollution? (UPSC 2020)
Select the correct answer using the code given below: A. 1, 2 and 3 only B. 2 and 4 only C. 1, 3 and 4 only D. 1, 2, 3, 4 and 5
3. What is the ‘Greenhouse Gas Protocol’? (UPSC 2016) (a) It is an international accounting tool for government and business leaders to understand, quantify and manage greenhouse gas emissions
(b) It is an initiative of the United Nations to offer financial incentives to developing countries to reduce greenhouse gas emissions and to adopt eco-friendly technologies.
(c) It is an inter-governmental agreement ratified by all the member countries of the United Nations to reduce greenhouse gas emissions to specified levels by the year 2022
(d) It is one of the multilateral REDD+ initiatives hosted by the World Bank
4. Photochemical smog is a resultant of the reaction among (UPSC 2013) (a) NO2, O3 and peroxyacetyl nitrate in the presence of sunlight
(b) CO, O2 and peroxyacetyl nitrate in the presence of sunlight
(c) CO, CO2 and NO2 at low temperature
(d) high concentration of NO2 O3 and CO in the evening
5. Acid rain is caused by the pollution of the environment (UPSC 2013, 2022) (a) Carbon Dioxide and Nitrogen
(b) Carbon Monoxide and Carbon Dioxide
(c) Ozone and Carbon Dioxide
(d) Nitrous Oxide and Sulphur Dioxide
6. Biological Oxygen Demand (BOD) is a standard criterion for (UPSC 2017) (a) Measuring oxygen level in blood
(b) Computing oxygen levels in forest ecosystems
(c) Pollution assay in aquatic ecosystem
(d) Assessing oxygen levels in high-altitude regions
7. The Ministry of Environment, Forest and Climate Change recently published the draft Environment Impact Assessment (EIA) Notification, in 2020. Which of the following statements is correct about EIA? (Punjab Civil Service 2020)
1. It predicts the effect of a proposed industrial/infrastructural project on the environment.
2. It prevents the proposed activity/project from being approved without proper oversight or taking adverse consequences into account.
3. It compares various alternatives for a project and seeks to identify the one which represents the best combination of economic and environmental costs and benefits.
4. As per the new notification, Coal and non-Coal mineral prospecting and solar photovoltaic projects do not need prior environmental clearance.
Select the correct answer using the code given below:
A. Only 1 and 2
B. Only 2, 3 and 4
C. Only 1, 2 and 3
D. Only 1, 2 and 4
8. Headquarters of the World Meteorological Organization is located in (NDA 2017)
A. Washington B. Geneva C. Moscow D. London
9. With reference to the 'Global Climate Change Alliance', which of the following statements is/are correct? (UPSC 2017)
1. It is an initiative of the European Union.
2. It provides technical and financial support to targeted developing countries to integrate climate change into their development policies and budgets.
3. It is coordinated by World Resources Institute (WRI) and World Business Council for Sustainable Development (WBCSD)
Select the correct answer using the code given below:
A. 1 and 2 only B. 3 only C. 2 and 3 only D. 1, 2 and 3
10. The IPCC is the United Nations body for assessing the science related to climate change. IPCC stands for: (RRB NTPC CBT 2 2022)
A. Intergovernmental Provision on Climate Change
B. International Panel on Climate Change
C. International Provision on Climate Change
D. Intergovernmental Panel on Climate Change
11. Comprehension (SSC CHSL 2020)
Direction: In the following passage some words have been deleted. Fill in the blanks with the help of the alternatives given. Select the most appropriate option for each blank.
Forest fire always (1) ______ by one of two reasons-naturally caused or human-caused. Natural fire is generally (2) ______ by lightning, with a very small percentage (3) ______ by spontaneous combustion of dry fuel such as sawdust and leaves. (4) ______, human-caused fire can happen (5) ______ any number of reasons.
Select the most appropriate option for blank No. 1.
A. takes up B. happens C. causes D. creates
12. Which of the following statements best describes the term 'Social Cost of Carbon'? It is a measure, in monetary value, of the (UPSC 2020)
A. long-term damage done by a tonne of CO2 emission in a given year.
B. requirement of fossil fuels for a country to provide goods and services to its citizens, based on the burning of those fuels.
C. efforts put in by a climate refugee to adapt to live in a new place.
D. contribution of an individual person to the carbon footprint on the planet Earth.
13. The increasing amount of carbon dioxide in the air is slowly raising the temperature of the atmosphere, because it absorbs (UPSC 2012)
A. the water vapour of the air and retains its heat
B. the ultraviolet part of the solar radiation
C. all the solar radiations
D. the infrared part of the solar radiation
14. As per the World Health Organisation (WHO) recommendation of a balanced diet, to avoid unhealthy weight gain, total fat should NOT exceed _______ of total energy intake. (UPSSSC Mandi Inspector 2019)
A. 20% B. 30% C. 10% D. 40%
15. What is the role of ultraviolet (UV) radiation in the water purification systems? (UPSC 2012)
1. It inactivates/kills the harmful microorganisms in water.
2. It removes all the undesirable odours from the water.
3. It quickens the sedimentation of solid particles, removes turbidity and improves the clarity of water.
Which of the statements given above is/are correct?
A. 1 only B. 2 and 3 only C. 1 and 3 only D. 1, 2 and 3
16. Which of the following ultraviolet rays is more dangerous? (UPTET 2017)
A. UV-A B. UV-B C. UV-C D. None of the above
17. Consider the following statements: (UPSC 2019)
1. Agricultural soils release nitrogen oxides into environment.
2. Cattle release ammonia into environment.
3. Poultry industry releases reactive nitrogen compounds into environment.
Which of the statements given above is/are correct?
A. 1 and 3 only B. 2 and 3 only C. 2 only D. 1, 2 and 3
18. Which of the following is a VOC? (MP Vyapam 2022)
A. Toulene B. Water C. Carbon dioxide D. Carbon monoxide
19. Volatile Organic Compounds (VOCs) are of great concern because (UGC NET Environmental Science 2020)
A. Once such compounds are in the vapour state, they are difficult to control in the environment.
B. Most of them are ozone-depleting substances
C. They contribute to a general increase in reactive hydrocarbons in the atmosphere.
D. They are less soluble in water.
Answers: 1-B, 2-A, 3-A, 4-A, 5-D, 6-C, 7-D, 8-B, 9-A, 10-D, 11-B, 12-A, 13-D, 14-B, 15-A, 16-C, 17-D, 18-A, 19-C
|
Source: The Hindu
