The Central Pollution Control Board's (CPCB) Sameer app put Delhi's air quality index (AQI) at 449 in the 'severe' category at 8 am on Saturday.
After two days of the average air quality index (AQI) remaining in the 'severe' category, the overall air quality in Delhi improved slightly on Saturday due to higher wind speed. According to weather experts, strong surface winds could further flush out pollutants over the next two days.
The Central Pollution Control Board's (CPCB) Sameer app put Delhi's air quality index (AQI) at 449 in the 'severe' category at 8 am on Saturday. Air quality index (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' and 401 and 500 'severe'.
Post-Diwali due to the bursting of crackers the air quality in Delhi was the poorest in five years along with rising incidents of stubble burning in neighbouring states. Delhi witnessed a cold morning on Saturday as the minimum temperature in the city was recorded at 14.7 degrees Celsius
Weather experts said the air quality in Delhi-NCR degraded due to unfavourable weather conditions calm winds, low temperature and low mixing height along with a poisonous cocktail of emissions from firecrackers, stubble burning and local sources.
Meanwhile, the Delhi government is taking corrective measures to give residents of the national capital some breather. On Saturday the AAP government deployed 114 water tankers to sprinkle water on roads to settle the dust, which is one of the major contributors to air pollution.
Environment Minister Gopal Rai flagged off the water tankers, terming it an 'emergency measure' to help people. Last month, Chief Minister Arvind Kejriwal had launched an action plan that is being implemented across the city. The state government has also banned 92 construction sites for violating norms, Gopal Rai said.
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