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Delhi’s Air Quality Very Poor, Meteorological Conditions Slightly Favourable For Pollutant Dispersion

After recording ‘severe’ air pollution for four consecutive days, there was a respite for Delhi’s citizens as the pollution levels relented and was in ‘very poor’ category


New Delhi: The air quality of the national capital was recorded in the ‘very poor’ category as slightly improved meteorological conditions marginally favoured dispersion of pollutants, authorities said. The Central Pollution Control Board (CPCB) data showed the overall air quality index (AQI) at ‘very poor’ level of 396, while the Centre-run System of Air Quality and Weather Forecasting (SAFAR) showed an AQI of 369 which too falls in the ‘very poor’ category.

According to the CPCB data, 21 areas recorded severe pollution, while 13 areas witnessed ‘very poor’ air quality. In NCR, Ghaziabad recorded ‘severe’ air quality while Faridabad, Gurgaon and Noida recorded ‘very poor’ air quality. The overall PM2.5 level, fine particulate matter in the air with a diameter of less than 2.5 micrometer, was recorded at 249 and the PM10 level at 378 here, the CPCB said.

The national capital recorded its second highest pollution level of the year on Sunday with an AQI of 450. The air quality remained ‘severe’ on Monday and Tuesday before moving to ‘very poor’ category on Wednesday morning.

According to the Indian Institute of Tropical Meteorology (IITM), air quality is likely to improve as the meteorological conditions like wind speed and ventilation index are marginally favourable for dispersion of pollutants. Ventilation index is the speed at which pollutants can get dispersed.

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A ventilation index lower than 6000 sqm/second, with average wind speed less than 10 kmph, is unfavourable for dispersion of pollutants. The index was 5500 sqm/second on Wednesday, the IITM said.

In view of prevalence of severe pollution in the national capital, industrial activities in pollution hotspots of Wazirpur, Mundka, Narela, Bawana, Sahibabad and Faridabad, and construction work across Delhi-NCR was ordered to remain shut till Wednesday.

In a letter to Delhi Chief Secretary Vijay Kumar Dev, EPCA Chairperson Bhure Lal directed him to ban all construction activities in the national capital, Faridabad, Gurugram, Ghaziabad and Noida till Wednesday.

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The EPCA directed the traffic police to deploy special teams and ensure congestion-free traffic flow particularly in identified high-traffic corridors. The agencies concerned have also been asked to ensure strict action against illegal industries, intensify ground action and make all efforts to control polluting activities, particularly waste burning.

NDTV – Dettol Banega Swachh India campaign lends support to the Government of India’s Swachh Bharat Mission (SBM). Helmed by Campaign Ambassador Amitabh Bachchan, the campaign aims to spread awareness about hygiene and sanitation, the importance of building toilets and making India open defecation free (ODF) by October 2019, a target set by Prime Minister Narendra Modi, when he launched Swachh Bharat Abhiyan in 2014. Over the years, the campaign has widened its scope to cover issues like air pollutionwaste managementplastic banmanual scavenging and menstrual hygiene. The campaign has also focused extensively on marine pollutionclean Ganga Project and rejuvenation of Yamuna, two of India’s major river bodies.

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