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    Question

    Which of the following pollutants is not covered under

    India’s National Ambient Air Quality Standards (NAAQS)?  
    A Carbon Monoxide Correct Answer Incorrect Answer
    B Nitrogen Dioxide Correct Answer Incorrect Answer
    C Lead Correct Answer Incorrect Answer
    D Chlorofluorocarbons (CFCs) Correct Answer Incorrect Answer
    E Ozone Correct Answer Incorrect Answer

    Solution

    Explanation: NAAQS, revised in 2009, set permissible limits for 12 key pollutants including PM 10, PM 2.5, SO₂, NO₂, CO, O₃, lead, ammonia, and benzene. CFCs are regulated under global treaties like the Montreal Protocol , not domestic air-quality norms.

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