Delhi’s 24-hour average air quality index (AQI) was 400 in the “very bad” category at 4 pm. However, by 6 pm, it has been categorized as “severe” and has data from the Central Pollution Control Board.
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AQI measurements below 50 are classified as “good”, while measurements 51-100 are classified in the “satisfied” category and measurements 101-200 are classified as “medium”. The range of “bad” air is 201 to 300, the range of “very bad” is 301 to 400, and the range of “severe” is 401 to 500.
Poor visibility was observed during the morning hours at both Safdarjun and Param, the city’s base weather stations. “In Safdarjun, there was no wind, so light to medium fog / smog occurred, and the visibility from early morning to 10 am was 400-1000 m. Param was 1,000-1200 m until 10:30 am. We reported relatively high visibility in the range of, “said RK Jenamani, senior scientist at IMD.
Since the ratio of stubble burning to PM2.5 in Delhi was only 6%, experts said that meteorological factors such as mild or weak winds, low temperatures, high moisture and low mixed layer height were pollutants. He said the source of pollution in the area became prominent because it interfered with the diffusion process.
Air quality and weather forecasting and research systems said air quality is likely to remain high-end in the “very bad” category for the next few days.
Anumi Taro Choudhry, Executive Director of Research and Advocacy at the Center for Science and Environment, said: To prevent the situation from getting worse, we need to use cleaner fuels and take strict measures against industries that pollute vehicles. “
According to the decision support system developed by the Indian Institute of Tropical Meteorology in Pune, the contribution of transportation to PM2.5 in the city of Delhi could be 15% at 8:30 pm on Friday. Emissions from Ghaziabad and Gautam Budh Nagar can simultaneously contribute 9% to PM 2.5 in Delhi, although the share of Delhi and its surrounding industries is estimated to be 7%.
Delhi, Health News, ET HealthWorld are again on the verge of “serious” AQI as smog covers get thicker
Source link Delhi, Health News, ET HealthWorld are again on the verge of “serious” AQI as smog covers get thicker