Rain brings down Delhi's pollution levels to 'poor' category, PM2.5 concentration to improve in next two days

On Thursday, the PM2.5 (particles in the air with a diameter of less than 2.5 micrometres) level was recorded at 105, while the PM10 (particles in the air with a diameter of less than 10 micrometres) was recorded at 191 in Delhi.

Press Trust of India November 15, 2018 14:40:12 IST
Rain brings down Delhi's pollution levels to 'poor' category, PM2.5 concentration to improve in next two days

New Delhi: Delhi's air quality fell in the 'poor' category Thursday as light showers brought down the pollution level slightly in the national capital, authorities said.

The overall air quality index (AQI) was recorded at 237 which falls in the 'poor' category, according to data by the Central Pollution Control Board. Two areas of the city recorded 'very poor' air quality, 26 areas recorded 'poor' air quality while seven areas recorded 'moderate' air quality, it said.

Rain brings down Delhis pollution levels to poor category PM25 concentration to improve in next two days

A man walks in front of India's presidential palace Rashtrapati Bhavan on a smoggy morning in New Delhi. Reuters

On Thursday, the PM2.5 (particles in the air with a diameter of less than 2.5 micrometres) level was recorded at 105, while the PM10 (particles in the air with a diameter of less than 10 micrometres) was recorded at 191 in Delhi.

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". Delhi's air quality has been oscillating between 'very poor' and 'severe' after Diwali due to the explosion of firecrackers.

But after rains since Tuesday, the air quality has significantly improved but fell in the 'poor' category. According to the Indian Institute of Tropical Meteorology, the PM2.5 concentration will improve in the next two days.

"The air quality is likely to improve in the next two days but will remain in 'poor' and 'very poor' categories in Delhi NCR. Also, the impact of biomass burning in northwest India is marginal over Delhi," it said.

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