Delhi's air quality
The national capital's air quality was in the very poor category on Tuesday morning, the first time this season, with calm winds
New Delhi: The national capital's air quality was in the very poor category on Tuesday morning, the first time this season, with calm winds and low temperatures allowing accumulation of pollutants.
The city recorded an air quality index (AQI) of 304 at 9:30 am, which falls in the very poor category. The 24-hour average AQI was 261 on Monday, the worst since February. It was 216 on Sunday and 221 on Saturday.
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Delhi's air quality
Wazirpur (AQI 380), Vivek Vihar (AQI 355) and Jahangirpuri (AQI 349) recorded the highest pollution levels.
An AQI between 0 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'.
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