Air pollution Strong winds bring temporary relief
New Delhi Nov 22 PTI Strong surface winds barrelled through Delhi and neighbouring areas on Monday improving the air quality The city recorded its 24-hour average air quality index at 311 down from 349 on Sunday It was 374 on Saturday Neighbouring Faridabad 330 Ghaziabad 254 Greater Noida 202 Gurgaon 310 and Noida 270 also recorded a slight improvement in the air quality R K Jenamani a senior scientist at the India Meteorological Department IMD said westerly winds gusting up to 25 kmph improved visibility to 3200 metres So far Monday has been the only day in November when the Palam Observatory reported visibility of more than 3000 m and such strong winds he said The Ministry of Earth Sciences air quality monitor SAFAR said the AQI was recorded in the lower end of the very poor category on Monday a significant improvement from the day before due to the low fire count and strong transport-level winds blowing from northwest direction dispersing pollutants These winds are likely to continue on Tuesday leading to further improvement in the air quality to the poor category if no increase in fire count it said Local surface wind speed is also relatively high on Monday and will remain so on Tuesday it said adding local and transport-level winds are likely to slow down from Wednesday and result in slight deterioration in the air quality SAFAR said 909 farm fires accounted for six per cent of Delhis PM25 pollution on Monday PTI GVS AAR
New Delhi Nov 22 PTI Strong surface winds barrelled through Delhi and neighbouring areas on Monday improving the air quality The city recorded its 24-hour average air quality index at 311 down from 349 on Sunday It was 374 on Saturday Neighbouring Faridabad 330 Ghaziabad 254 Greater Noida 202 Gurgaon 310 and Noida 270 also recorded a slight improvement in the air quality R K Jenamani a senior scientist at the India Meteorological Department IMD said westerly winds gusting up to 25 kmph improved visibility to 3200 metres So far Monday has been the only day in November when the Palam Observatory reported visibility of more than 3000 m and such strong winds he said The Ministry of Earth Sciences air quality monitor SAFAR said the AQI was recorded in the lower end of the very poor category on Monday a significant improvement from the day before due to the low fire count and strong transport-level winds blowing from northwest direction dispersing pollutants These winds are likely to continue on Tuesday leading to further improvement in the air quality to the poor category if no increase in fire count it said Local surface wind speed is also relatively high on Monday and will remain so on Tuesday it said adding local and transport-level winds are likely to slow down from Wednesday and result in slight deterioration in the air quality SAFAR said 909 farm fires accounted for six per cent of Delhis PM25 pollution on Monday PTI GVS AAR
