Delhi’s air quality drops to ’emergency’ category


Team Udayavani, Nov 1, 2019, 11:17 AM IST

New Delhi: The blanket of haze over Delhi thickened on Friday morning with the national capital’s pollution levels increasing overnight by around 50 points, taking the overall air quality index to 459.

A Central Pollution Control Board official said the AQI entered the “severe-plus” or “emergency” category late Thursday night, the first time since January this year.

If the air quality persists in the “severe plus” category for more than 48 hours, emergency measures such as odd-even car rationing scheme, banning entry of trucks, construction activities and shutting down schools are taken under the Graded Response Action Plan, the official said.

The hazardous pollution levels forced a number of people to miss morning walks and other activities.

Shubhomoy Sikdar, a Delhi-based journalist, said the pollution levels gave him a throat infection and he had to skip his daily sports session.

Amanpreet Singh, a resident of Jangpura, said he has been avoiding morning and evening walks and preferring to stay indoors.

The number of masked faces continued to grow as the city remained shrouded in pungent haze for the fourth consecutive day.

At 8.30 am, the capital’s overall air quality index stood at 459. It was 410 at 8 pm on Thursday.

All the 37 air quality monitoring stations across Delhi recorded the air quality in the severe category on Friday morning.

Bawana was the most-polluted area with an AQI of 497, followed by Delhi Technological University (487), Wazirpur (485), Anand Vihar (484) and Vivek Vihar (482).

Neighbouring Ghaziabad was the most-polluted city in the country, with the levels of PM2.5 tiny particulate matter less than 2.5 microns that can enter deep into the lungs reaching as high as 493.

Greater Noida (480), Noida (477), and Faridabad (432) also breathed extremely polluted air.

An AQI between 0-50 is considered good, 51-100 satisfactory, 101-200 moderate, 201-300 poor, 301-400 very poor, and 401-500 severe. Above 500 is severe-plus or emergency category.

Delhi is impatiently hoping for favourable meteorological conditions to blow away the toxic air, as health experts said the hazardous air pollution has become a serious health concern for about 2 crore residents.

“Intake of every 22 micrograms per cubic metre of polluted air is equivalent to smoking a cigarette. So whether the PM2.5 level is 700 or 300 units, the impact is still as bad. People need to take precautions, especially those suffering from asthma, bronchitis or other respiratory illness,” said Dr Arvind Kumar, lung surgeon at Sir Ganga Ram Hospital here.

Weather experts said increased wind speed due to a fresh western disturbance approaching the northern region would help disperse pollutants faster from Saturday.

 

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