Environment & Ecology · Air Pollution & Control Measures
Under the Graded Response Action Plan (GRAP) framework for Delhi-NCR, which specific PM2.5 concentration range is used to designate the 'Very Poor' air quality category?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 161–120 µg/m3
- 2Above 250 µg/m3
- 3Above 300 µg/m3 for 48 hours or more
- 4121–250 µg/m3✓
Correct answer
121–250 µg/m3
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