New Delhi: Delhi air quality remains “severe” for the fourth day in a row because of weather conditions that do not support.
However, better weather conditions on Friday caused a marginal increase in the air quality index (AQI) in the “severe” category.
According to the central pollution control board, AQI, on a scale of 0 to 500, is 415 compared to 423 on Thursday and 407 a day before that.
Pollution monitoring agents expect better ventilation for the next few days.
Track the level of pollution in your city in the meantime, the Ministry of India’s Meteorology (IMD) has expected light moderate rain from Sunday.
“The east wind will continue for a few more days until 29 December.
After that there will be a western wind, but the speed will be lacking.
So there will be no cold waves for at least 3 or January 4,” said R K Jenamani, a senior scientist at the comm.
On Friday, the city recorded a maximum and minimum temperature at 22.9 degrees Celsius and 6.9 degrees, such as opposing 23.1 and 5.5 degrees the day before.
According to IMD, the maximum and minimum tend to drift around 23 and 8 degrees Celsius on Saturday.
National capital has witnessed the quality of “severe” air since December 21 as Western active disorders caused a decrease in wind speed and increased moisture, which caused poor ventilation and more accumulated pollutants produced locally and from neighboring cities.
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Particle pollutants, especially PM2.5, see a slight increase throughout the day.
PM2.5 fell to 239 micrograms per cubic meter at 8pm from 284.5 units at night, such as the safe limit of 60.
According to air quality systems and weather forecasting and research, air quality tends to increase from Saturday due to pollutant and wind ventilation better.
“Increased ventilation, mixing with air mass above the limit and moist conditions will reduce AQI from December 25,” he said.
According to the decision support system of the Ministry of Union to Milen Earth for Delhi air quality management, both local and external emissions sources affect city air quality.
Local transportation, industry, emissions and housing construction remain the main contributor to PM2.5 cities as a whole, while throughout the NCR, the main contributor is the Ghaziabad District, Noida and Bulandshahr.