Noida-Ghaziabad most polluted cities | Ghanti Bajao
ABP News Bureau
Updated at:
12 Nov 2021 11:42 PM (IST)
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View In AppAn AQI between zero and 50 is considered "good", 51 and 100 "satisfactory", 101 and 200 "moderate", 201 and 300 "poor", 301 and 400 "very poor", and 401 and 500 "severe".