Noida: Although the overall level of pollution this month remains low, the average level of PM10 for August is higher than the last two years.
PM10 is a determinant pollutant in calculating the air quality index (AQI) from somewhere.
While the average rate was 78 μg / m3 in August 2019, down to 66 years ago.
But from 1 August 24 to 24 this year, the average PM10 level has 110.
for PM10, a safe level below 100 μg / m3.
PM10 is made of particle material in the air which includes smoke and dust.
Other determinants are PM2.5 which includes emissions from power plants and car exhaust.
In the past two weeks, PM10 levels rose in those days did not rain.
At the monitoring station Sector 62 monitoring and knowledge, the PM10 level is within a safe limit for three days in the past week (August 21-23).
“Usually, stop rain at the end of August.
But this time, we are still raining.
The level of pollution falls when it rains when the dust settles.
Even though the monsoon has stretched over a longer period this time, we hardly see the days with a heavy shower.
That is The reason why the overall pollution level is higher than this season compared to the last few years, “said a senior official from the Uttar Pradesh (UPPCB) pollution control body.
According to officials, to understand the level of pollution, airshed (emission dispersion) data must be analyzed, along with rainfall.
“Learning the source of pollution in Airshed will tell us why the levels are so high in this region and specific pollutants which need to be controlled.
Source determination can be the key to reducing pollution levels,” said Praveen Kumar, regional officers, UPPCB, Noida.
He added that the state government plans to hire an independent agent who will determine air pollution sources in Gautam Budh Nagar and several other districts.
This body is likely to be completed next month.
On Wednesday, Aqi in Noida is 115 (medium).
Between August 20 and 23 when it rains, the city AQI remains at a good or moderate level.
Usually, the level of pollution rose from September and they remained high through winter.