PATIALA: A day after the celebrations of Guru Nanak Dev gurpurab across Punjab, the ambient air quality index (AQI) plunged further. The monitoring stations at Amritsar, Ludhiana and Mandi Gobindgarhregistered a steep rise in pollution levels due to bursting of firecrackers. On November 1, the Punjab and Haryana high court had allowed bursting of firecrackers from 6:30 to 9:30 pm to mark the occasion.
At Amritsar, the ambient AQI was recorded at 306 micrograms per cubic metre (/m³) while at Ludhiana it was 353 /m³, and at Mandi Gobindgarh, it was 297 /m³ on Sunday.
Sources in the Punjab Pollution Control Board (PPCB) said the wind velocity suddenly came down on Sunday, which led to a heavy concentration of pollutants across the state. They said the farmers also continued to set paddy stubble in their fields on fire, which added to the already grave situation in the state. According to sources, the wind was blowing with a velocity of 3 mph across Punjab due to which there was no distribution of pollutants across the region.
At Amritsar, the particulate matter 10 (PM10) levels were recorded between 157 /m³ and 366 /m³ with an average of 247 /m³ on Sunday. The PM2.5 levels were recorded between 70 and 323 /m³.
11 Jul 2020
12 Jul 2020