Delhi smog: Air quality still ‘very poor’, emergency measures to continue
Showing marked improvement, air quality in the national capital was recorded as ‘very poor’ today, but the EPCA is not planning to lift the emergency measures such as ban on trucks and construction immediately.
The 24-hour average air quality index (AQI) of the Central Pollution Control Board (CPCB) was 308, which falls in the ‘very poor’ category, following a week-long smog episode when pollutants shot up to emergency levels. The air quality may further improve tomorrow as light rains are expected, which will help in flushing suspended particulates away, Central Pollution Control Board (CPCB) member secretary A Sudhakar said.
According to CPCB and SAFAR scientists, the improvement has got much to do with the rise in mixing height (where air and suspended particulates mix), surface wind gaining speed, which aided rapid dispersion of pollutants, and measures implemented under the Graded Response Action Plan (GRAP). “We are not relaxing anything as of now. The CPCB task force will meet tomorrow and the day after and suggest future course of action as drizzle is expected. Sudden relaxation and re-imposition becomes troublesome for enforcing authorities.
So we will take further decisions only when the prevailing trend of improvement persists,” Sudhakar told PTI. The hourly-graph of …read more