GS Paper 3Environmental Pollution and Mitigation
Environmental Pollution and Mitigation: UPSC Mains GS 3 PYQ 2021
Year: 2021 Marks: 10
Previous year question
Describe the key points of the revised Global Air-Quality Guidelines (AQGs) recently released by the World Health Organisation (WHO). How are these different from its last update in 2005? What changes in India's National Clean Air Programme are required to achieve these revised standards?
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