On Wednesday, the air quality readings for Delhi stood at 327, according to the Central Pollution Control Board’s (CPCB) 4 pm national bulletin with particulate matter, PM 2.5, and PM 10 as the lead polluting agents.
The concentration of PM 2.5, the most harmful and fine pollutant, soared to 312 micrograms per cubic metre at 7 a.m., while PM 10 levels touched 422 micrograms per cubic metre.
PM10, or particulate matter with a diameter of 10 micrometres or less, the key air pollutant in the Durgapur industrial zone, cannot travel long distances, and bio-seals along the Jharkhand border will not be very effective, according to senior environmental scientists and engineers.
The PM10 level in Kolkata reached a high of 227 in the last five days. The PM2.5 level registered a maximum of 113 during the same period.
