As the impact of rainfall decreases, air quality deteriorates in Delhi

Air quality in Delhi has continued to oscillate between the "mediocre" and "very poor" categories today because of the increased capacity for pollutant retention after rainfall and the burning of thatch. neighboring states.

The level of air pollution is on the way to turning around. It has increased after the impact of the rain has disappeared and the IQA falls into the category of "very poor," said the air quality monitoring system and conditions (SAFAR) managed by the Center.

The overall air quality index (AQI) was recorded at 309, which corresponds to the "very poor" category, according to SAFAR.

Data from the Pollution Control Center (CPCB) showed the overall IQA to be a "low" 258.

Today, PM2.5 particles in the air with a diameter of less than 2.5 micrometers have been recorded at 122, while PM10 concentrations have been recorded at 228, according to data from the United States. the pollution control center.

The air quality in Delhi showed a significant improvement on Wednesday and Thursday after the rains washed out pollutants, but the rains also resulted in an increase in air capacity to contain pollutants. declared SAFAR.

"Although the wind speed is better (high), the retention capacity (of the air) is also due to the humidity, which is unfavorable," said SAFAR in a report.

The number of fires due to thatching has increased over the past 24 hours, which could account for 8 to 10 percent of the pollution in Delhi, the report said.

An AQI between 0 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".

According to CPCB data, three areas of Delhi recorded "very poor" air quality and 31 "poor" air quality.