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Thick smog envelops Delhi-NCR; AQI falls to ‘severe’ category

Thick smog envelops Delhi-NCR; AQI falls to ‘severe’ category

A thick blanket of smog covered Delhi and its neighboring areas including Noida, Ghaziabad, Gurugram and Faridabad on Wednesday morning. Delhi recorded an air quality index (AQI) above 400, placing it in the 'Severe' range, while Gurugram, Noida and Ghaziabad registered 'Poor' air quality. The AQI in Faridabad stood at 188, falling in the 'Moderate' category. An 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', 401 and 450 'severe' and above 450 'severe plus'.

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