Brace for a foggy Monday morning as pollution levels spike again | Hindustan Times
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Jan 28, 2018-Sunday
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Brace for a foggy Monday morning as pollution levels spike again

On Sunday too, a dense fog had covered Delhi. While visibility at Safdarjung had dropped to around 100m, at Palam the visibility was around 50m around 8.30am.

delhi Updated: Jan 28, 2018 21:51 IST
HT Correspondent
On Sunday too, a dense fog had covered Delhi. While visibility at Safdarjung had dropped to around 100m, at Palam the visibility was around 50m around 8.30am.
On Sunday too, a dense fog had covered Delhi. While visibility at Safdarjung had dropped to around 100m, at Palam the visibility was around 50m around 8.30am.(Sonu Mehta/HT PHOTO)

With low wind speed and high moisture levels, Delhi is likely to be engulfed by a dense fog on Monday morning, warned scientists from the regional weather forecasting centre.

The city’s air quality, which remained in the ‘poor’ category for over the past four days, has already deteriorated to ‘very poor’ levels once again on Sunday. Pollution levels could spike further over the next three days, said a forecast by SAFAR – India’s official pollution forecasting system under the Union ministry of earth sciences.

“There will be dense fog on Monday morning. Conditions would improve later during the day. Visibility could drop below 200m in the morning hours,” said a senior scientist of the meteorological department.

On Sunday too, a dense fog had covered Delhi. While visibility at Safdarjung had dropped to around 100m, at Palam the visibility was around 50m around 8.30am.

At least 55 incoming trains were running behind schedule, 19 had to be rescheduled and 18 were cancelled till 6pm on Sunday, according to officials. Flight schedules, however, remained unaffected.

On Sunday the minimum temperature dropped to 6.4 degrees Celsius, which was at least three degrees below the climatic normal. The maximum temperature was 22.6 degrees, which was normal for the time of the year. The mercury level could, however, shoot up over the next three days.

“A western disturbance is approaching. Unlike the previous one which triggered rain in Delhi-NCR on January 23, this one is likely to hit Jammu and Kashmir around the end of this month. In Delhi, however, both the maximum and minimum temperatures are likely to increase over the next few days. It could reach 10 degrees Celsius by Wednesday,” said an official.

On Sunday the Air Quality Index value shot up to 301 which fall under ‘very poor’ category. The AQI value had dropped to 265 on January 24 which fall under ‘poor’ category. Delhi enjoyed four days of comparatively cleaner air for four days between January 24 and January 27 when air quality was ‘poor’.

On a scale of 0 – 500, an AQI value between 200 and 300 is considered as poor while a value between 301 and 400 is considered as very poor.

“If wind speed drops and moisture levels increases, air quality would deteriorate and there would be fog,” said D Saha, head of the air quality laboratory at CPCB.

The National Capital was engulfed by a ‘monster fog’, which covered more than 6,00,000 sq km from Pakistan in the west to Bihar in the east, on Friday morning.

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