Delhi's air quality improves to 'poor' category
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An AQI between 0-50 is marked good, 51-100 is satisfactory, 101-200 moderate, 201-300 poor, 301-400 very poor and 401-500 is considered severe.
Full ArticlePublished
An AQI between 0-50 is marked good, 51-100 is satisfactory, 101-200 moderate, 201-300 poor, 301-400 very poor and 401-500 is considered severe.
Full ArticleThe air quality of Delhi, Gurugram, and Noida improved slightly, but remained in ‘poor’ category on Friday, according to the..
The average air quality in Ghaziabad, Noida, Greater Noida, Fridabad and Gurugram was in the very poor category, which upon..