Tag: PM2.5

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Explain the processes responsible for the formation of secondary pollutants in urban areas. Analyse how these processes amplify their environmental impacts compared to primary pollutants.

Topic: Environment & ecology Conservation, environmental pollution and degradation, Q6. Explain the processes responsible for the formation of secondary pollutants in urban areas. Analyse how these processes amplify their environmental impacts compared to primary pollutants. (10 M) Difficulty Level: Medium Reference: InsightsIAS Why the question Rising urban air pollution episodes, especially smog and ozone spikes, …

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Secondary Pollutants

Source:  IE Subject:  Environment Context: Recent analysis by the Centre for Research on Energy and Clean Air (CREA) shows that secondary pollutants now account for nearly one-third of Delhi’s annual PM2.5 load. About Secondary Pollutants: What are secondary pollutants? Secondary pollutants are not emitted directly from a source; instead, they are formed in the atmosphere …

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Fine particulate matter has become the new agent of slow violence in India’s cities. Discuss its major sources. Analyse how it affects the urban microclimate and human health.

Topic: Changes in critical geographical features Q2. Fine particulate matter has become the new agent of slow violence in India’s cities. Discuss its major sources. Analyse how it affects the urban microclimate and human health. (10 M) Difficulty Level: Easy Reference: DTE Why the question: The persistent urban smog episodes in India’s major cities and …

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Examine the major causes of India’s high particulate pollution levels. Assess its combined impact on health, agriculture, and economic productivity. Propose multi-level strategies to address the challenge.

Topic: Conservation, environmental pollution and degradation. Q6. Examine the major causes of India’s high particulate pollution levels. Assess its combined impact on health, agriculture, and economic productivity. Propose multi-level strategies to address the challenge. (15 M) Difficulty Level: Easy Reference: TH Why the question The AQLI 2025 report highlighted that all Indians breathe air worse …

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Identify the main drivers of hazardous PM2.5 levels in Indian cities. Assess their far-reaching adverse consequences and propose multi-sectoral preventive measures.

Topic: Conservation, environmental pollution and degradation, environmental impact assessment. Q6. Identify the main drivers of hazardous PM2.5 levels in Indian cities. Assess their far-reaching adverse consequences and propose multi-sectoral preventive measures. (15 M). Difficulty Level: Easy Reference: TH Why the question PM2.5 pollution in Indian cities is among the worst globally, causing severe health and …

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UPSC CURRENT AFFAIRS – 22 November 2024

  UPSC CURRENT AFFAIRS – 22 November 2024 covers important current affairs of the day, their backward linkages, their relevance for Prelims exam and MCQs on main articles   InstaLinks :  Insta Links help you think beyond the  current affairs issue and help you think multidimensionally to develop depth in your understanding of these issues. …

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Delhi Air Pollution

Syllabus: Air Pollution Source:  TH  Context: Delhi’s air pollution crisis is worsening, with high levels of particulate matter (PM2.5 and PM10) and other pollutants creating severe health and environmental issues.  Delhi Air Pollution Status: Air Quality Index (AQI): Frequently hovers between 300-500, indicating “very poor” to “severe” air quality. PM2.5 Dominance: Major contributor to unhealthy …

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