New Delhi: Delhi air quality continues to remain in the ‘severe’ category for the second consecutive day on Wednesday with the air quality index (AQI) of 407.
Air quality warning system for Delhi, a system under the UNI Minister of Earth Sciences, said significant increase in air quality possibilities from December 27.
The city is expected to receive rain on December 27 and December 28 under the influence of Western disturbances.
Experts say calm winds, high mixing layers and temperatures cause pollutant accumulation.
Although there was no cold wave reported in the capital on Wednesday, the minimum temperature was recorded at 4.4 degrees Celsius, three degrees below normal, in Safdarjung, which is a city base station.
The night temperature was recorded at 4.2 degrees Celsius in Lodhi Road.
Low temperatures slow down the dissolution of pollutants.
Dipankar Saha, Former Head of the Central Pollution Control Board Laboratory, said, “The air quality changes from ‘very poor’ to the ‘severe’ category when wind speeds are reduced by almost 2M / s.
In this situation, local pollutants cannot disperse and accumulate the concentration of pollutant .
The only solution is to reduce emissions from all possible sources.
“RK Jenamani, senior scientist in the Indian Meteorology Department, said,” The wind is almost calm but they take a speed of 5-10 kmpj in the afternoon.
However, the wind is relatively more Strong expected from December 27.
“Track the level of pollution in your citysafer, air quality has deteriorated in November, the air quality management commission in the region of the national capital and a separate area has imposed several restrictions on controlling pollution.
However, the main restrictions such as the closure of hot power plants, construction prohibitions, the entry of trucks to Delhi, the closing of the school and educational institutions and closure of the industry has recently been appointed.
According to the early warning system, air quality is likely to remain in the ‘very poor’ category until December 25 and increases afterwards.
“A significant increase can be seen from December 27 when AQI will reach in a bad / medium category.”