Very dense fog lowers visibility to zero meters in Delhi traffic movement hit

  • | Saturday | 16th January, 2021

New Delhi January 16A thick blanket of fog reduced visibility to zero meters in the national capital on Saturday affecting traffic movement the India Meteorological Department (IMD) said. 'Very dense' fog lowered visibility to zero meters at Palam and Safdarjung. 'Dense' fog is predicted in parts of the city on Sunday as well an IMD official said. In case of 'dense' fog visibility is between 51 and 200 metres 'moderate' is between 201 and 500 metres and 'shallow' is between 501 and 1000 metres. It was 2 degrees Celsius on Thursday and 3.2 degrees Celsius on Wednesday.

New Delhi January 16 A thick blanket of fog reduced visibility to zero meters in the national capital on Saturday affecting traffic movement the India Meteorological Department (IMD) said. This is the third time this season after December 8 and January 1 that visibility has dropped to zero meters in the city. Very dense fog lowered visibility to zero meters at Palam and Safdarjung. Dense fog is predicted in parts of the city on Sunday as well an IMD official said. According to the IMD very dense fog is when visibility is between 0 and 50 metres. In case of dense fog visibility is between 51 and 200 metres moderate is between 201 and 500 metres and shallow is between 501 and 1000 metres. Delhi recorded a minimum temperature of 6.6 degrees Celsius a notch below normal on Saturday. The Lodhi Road weather station recorded a minimum temperature of 5.8 degrees Celsius. On Friday the Safdarjung Observatory which provides representative data for the city had recorded a low of 6.4 degrees Celsius. It was 2 degrees Celsius on Thursday and 3.2 degrees Celsius on Wednesday. There was no improvement in the citys air quality which remained in the severe category on Saturday. The air quality index (AQI) had entered the severe category on Thursday due to “extremely unfavourable” conditions for the dispersion of pollutants government agencies said. The citys AQI was 436 at 9 am. The 24-hour average AQI was 460 on Friday 429 on Thursday 354 on Wednesday 293 on Tuesday and 243 on Monday. An AQI between zero 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. Kuldeep Srivastava head IMDs regional forecasting centre said the wind speed had slowed down and the moisture in the air had made the pollutants heavier. The Central Governments Air Quality Early Warning System for Delhi said slow winds and ventilation conditions are “extremely unfavourable” for the dispersion of pollutants. This will lead to further deterioration of the air quality the agency said. PTI

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