Delhi's air quality after heavy rain
New Delhi, Jan 22 (PTI) Heavy rains drastically reduced the pollution level of the national capital, which recorded the best air quality of this year on Tuesday, authorities said.
According to the Central Pollution Control Board (CPCB) data, the overall air quality index (AQI) in the city was 133, which falls in the 'moderate' category.
This is the first time this year that an AQI as low as 133 was recorded, the CPCB data showed. In first week of January too, the air quality had improved to 'moderate' category for a brief period of time.
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