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Central Pollution Control Board

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11 November 2026 CPCB defends AQI cap of 500, says Delhi data gaps came from analyser calibrated range CPCB says the 500 limit is by design and that readings beyond the analysers' calibrated range were left out, not hidden. 7

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Delhi 1 National Air Quality Index 1 Indian Institute of Technology Kanpur 1 India 1 South Asia 1 World 1