GURGAON: A slight build up in wind velocity helped scatter particulate topic in the air and brought air pollution down by way of 30% on Saturday from what it was once after Diwali fireworks on Thursday.
The perfect degree of PM2.five was once reported at 220.23 micrograms consistent with cubic metre (g/m3) on Saturday, down from Friday's top of 324.nine g/m3. The town's air quality index (AQI) stood at 345 on Saturday as compared to 397 on Friday.
The data means emergency measures below the graded reaction motion plan (GRAP) — like shutting down highly polluting industries and preventing building process — would possibly not immediately be rolled out. Under GRAP, which has been prepared by way of the Environment Pollution Control Authority (EPCA), a Supreme Court-appointed frame, emergency measures should be taken if PM2.five levels (whose safe mark is 60) breach 300 and stay there for 2 days.
"We are expecting the level to come under control within 24 hours. I don't think there is a need to implement emergency measures," said a Haryana Pollution Control Board official.
Shambhavi Shukla, research associate with the Centre for Science and Environment's clean air programme, wasn't so sure. "As we approach winters, moisture content in the atmosphere increases and it leads to haze at this time of the year. It is difficult to say if the level of PM2.5 will go down," she said.
She also cautioned that the worst effects of stubble-burning nonetheless lay ahead. "Stubble burning is usually at its peak in the last week of October. It is likely to make the situation worse in Delhi-NCR," she said.
The perfect degree of PM2.five was once reported at 220.23 micrograms consistent with cubic metre (g/m3) on Saturday, down from Friday's top of 324.nine g/m3. The town's air quality index (AQI) stood at 345 on Saturday as compared to 397 on Friday.
The data means emergency measures below the graded reaction motion plan (GRAP) — like shutting down highly polluting industries and preventing building process — would possibly not immediately be rolled out. Under GRAP, which has been prepared by way of the Environment Pollution Control Authority (EPCA), a Supreme Court-appointed frame, emergency measures should be taken if PM2.five levels (whose safe mark is 60) breach 300 and stay there for 2 days.
"We are expecting the level to come under control within 24 hours. I don't think there is a need to implement emergency measures," said a Haryana Pollution Control Board official.
Shambhavi Shukla, research associate with the Centre for Science and Environment's clean air programme, wasn't so sure. "As we approach winters, moisture content in the atmosphere increases and it leads to haze at this time of the year. It is difficult to say if the level of PM2.5 will go down," she said.
She also cautioned that the worst effects of stubble-burning nonetheless lay ahead. "Stubble burning is usually at its peak in the last week of October. It is likely to make the situation worse in Delhi-NCR," she said.
Pollution down, but farm fires pose threat
![Pollution down, but farm fires pose threat]()
Reviewed by Kailash
on
October 22, 2017
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