GURGAON: The citys air quality index (AQI) stayed in the poor category for the second consecutive day on Monday at 261. The wind speed was 3kmph on Wednesday, down from 5kmph the day before, which prevented the dispersion of pollutants and led to a rise in AQI from Sundays 234. The Sector 51 station recorded the citys highest AQI on Monday at 345 (very poor), followed by Teri Gram (235) and Vikas Sadan (226), both poor.Gwalpahari recorded the cleanest air at 183 (moderate).Track the pollution level in your cityThe central governments System of Air Quality and Weather Forecasting and Research (SAFAR) said weather conditions are likely to be highly unfavourable for dispersion of pollutants from November 23."Predominant surface winds are likely to be coming from the northwest direction with speeds of 4kmph-8kmph and will become calm during evening/night. There will be mainly clear sky and shallow fog in the morning from November 20 to 22. The air quality is likely to remain in the very poor category," it stated."Local factors like vehicular pollution, road dust, rampant construction and garbage burning are trapping the pollutants in the atmosphere," said Shubhansh Tiwari, a research associate at the Centre for Science and Environment.The PM2.5 level was highest in Sector 51 (310 g/m³) on Monday, followed by 221 g/m³ in Teri Gram, and 134 g/m³ in Vikas Sadan. The level of PM10 was the highest at Sector 51 (234 g/m³), followed by Teri Gram (215 g/m³). Vikas Sadan doesnt record PM10 data. According to the CPCB, the annual average permissible limits for PM2.5 and PM10 are 60g/m³ and 100 g/m³, respectively.According to satellite data from Nasa, collated by the Indian Agricultural Research Institute, on Monday, 34 farm fires were detected in Haryana whereas 634 were observed in Punjab.Neighbouring Delhi (348), Faridabad (329), Noida (331) and Ghaziabad (321) all recorded very poor air.Meanwhile, the minimum temperature on Monday was 13.2 degrees Celsius, while the maximum was 26 degrees. "There will be a gradual dip in mercury in the coming days. There is no forecast of rain for the next seven days. The weather will remain dry for south Haryana," IMD (Chandigarh) director Manmohan Singh said.

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