The air quality index showed a spike from a moderate 191 on Saturday to a poor-range 294 on Sunday, the leap of over 100 ...
The CPCB classifies the air quality index into the following categories: 0-50 (good), 51-100 (satisfactory), 101-200 ...
According to the city's 24-hour average, the AQI in Gurugram was recorded in the 'poor' category at 228, while in Ghaziabad ...
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