Delhi’s air quality remains in ‘poor’ category

By: |
October 22, 2020 1:54 PM

Delhi's pollution levels remained in the 'poor' category on Thursday morning with the Air Quality Index (AQI) recorded at 254, government agencies said.

The Ministry of Earth Sciences' air quality monitor, SAFAR, said calm surface wind conditions prevail over the Delhi region. (Photo source: ANI)

Delhi’s pollution levels remained in the ‘poor’ category on Thursday morning with the Air Quality Index (AQI) recorded at 254, government agencies said. Though pollution watchdog Central Pollution Control Board (CPCB) and other agencies forecast improvement in the air quality for Thursday, the AQI remained in the same category as on Wednesday.

According to the CPCB, Delhi’s air quality index (AQI) was recorded at 256 on Wednesday. The figures are based on data collected from 34 monitoring stations in the city.

An AQI between 0 and 50 is considered ‘good’, 51 and 100 ‘satisfactory’, 101 and 200 ‘moderate’, 201 and 300 ‘poor’, 301 and 400 ‘very poor’, and 401 and 500 ‘severe’. The Ministry of Earth Sciences’ air quality monitor, SAFAR, said calm surface wind conditions prevail over the Delhi region.

“It is forecasted that the air quality will be in the ‘poor’ to marginally ‘very poor’ on October 23 and 24,” it said.
According to the AQI monitoring mobile application SAMEER, Delhi’s 10 monitoring stations recorded “very poor” air quality. These include Mundka with AQI of 365, Wazirpur with 352, Anand Vihar with 306, Narela with 358, Bawana with 320, Rohini 342, Dwarka sector 8 with 332, Vivek Vihar- 313 and Jahangirpuri with AQI of 310.

SAFAR said an increase in stubble fire count was observed around Haryana, Punjab, and neighbouring regions. “The SAFAR synergised stubble fire counts stood at 1428 for Wednesday. The boundary layer wind direction is not fully favourable for pollutant transport towards the Delhi region. The SAFAR model estimate of stubble burning share in PM2.5 is nine per cent for today,” it said.

The stubble burning fire counts around Haryana, Punjab and neighbouring regions stood at 849 for Tuesday and its share in Delhi’s PM 2.5 pollution stood at 15 per cent on Wednesday. The 24-hour average AQI of Delhi was 223 on Tuesday and 244 the day before.

The Delhi government has kick-started its ‘Red Light On, Gaadi Off’ anti-pollution campaign for which it has deployed 2,500 environment marshals at 100 traffic signals across the city to generate awareness and curb vehicular pollution.

The drive will go on till November 15 from 8 am to 8 pm. It is an awareness drive by the Delhi government and no person will be issued challans, the government has said.

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