nA day after Diwali, air quality in the Chhattisgarh capital Raipur remained in the satisfactory category on Sunday, the Chhattisgarh Environment Conservation Board said on Monday.
The air quality index (AQI) in Raipur was 73.70, it was 61.8 in Bhilai and 61.50 in Bilaspur, a press release said.
In Raipur, the Particulate Matter (PM 10) in air quality on Deepawali was down by 5.89 percent while Bilaspur recorded a 7.52 percent and Bhilai a 9.3 percent decrease in air quality as compared to last year, the release said.
In Raipur, the PM 10 in air quality at City Kotwali was 71 µg/m3 and 56.6 µg/m3 near AIIMS.
In Bilaspur, it was 55.0 µg/m3 at Vyapar building and 68 µg/m3 near Traffic Thana. In Bhilai-Durg, PM 10 in air quality was 55.4 µg/m3 at 5/32 Bunglow and 63.8 µg/m3 at Durg city Kotwali.
On Diwali, 3.62 percent reduction in noise pollution was witnessed in Raipur. The average intensity of sound at Raipur was 65.53 decibels and it was 71.13 decibels in Bhilai.
In view of Covid-19, the Chhattisgarh government last week fixed two hours for bursting firecrackers on Diwali, Chhath, Guruparva, Christmas and New Year.