Delhi choked under a thick blanket of smog on Monday, with the Air Quality Index (AQI) settling at 498, which falls in the higher spectrum of 'severe' category.
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Delhi government mandates 50% work from home for offices and private establishments under GRAP stage three due to severe air pollution. Essential services are exempted.
A cloud-seeding trial scheduled for Wednesday in Delhi has been put on hold due to insufficient moisture in the clouds, the Indian Institute of Technology-Kanpur said in a statement.
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Lahore, Pakistan, has once again been ranked as the world's most polluted city, with hazardous smog levels far exceeding WHO guidelines. The city is battling a toxic mix of vehicular emissions, industrial pollution, and crop residue burning.
The first cloud-seeding trial has been conducted in parts of Delhi, including Burari and Karol Bagh areas, aimed at inducing artificial rain to tackle air pollution.
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Data from the ministry of environment, forest and climate change reveals that 30 cities recorded an increase in PM10 levels compared to 2017-18 (FY18), indicating deteriorating air quality.
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The city's 24-hour Air Quality Index, recorded at 4 pm every day, stood at 418, up from 334 the previous day, and it may trigger stringent restrictions under the third stage of the graded response action plan to mitigate hazardous conditions.
Delhi's air quality improved for the second consecutive day on Thursday, with the Air Quality Index (AQI) recorded in the "moderate" category at 165. This marks a significant improvement from the "poor" category recorded on Tuesday. Several restrictions imposed under Stage 4 of the Graded Response Action Plan (GRAP) were lifted, but some restrictions under Stage 2 remain in place. The Decision Support System (DSS) has not been updated since Friday, with technical difficulties hindering the update of data for the last six days.
The city's air quality dropped to the "very poor" category, with an Air Quality Index of 330 at 10 pm.
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Squandering the relief due to rain, Delhi recorded a jump in pollution levels and a smoky haze returned on Monday morning after residents flouted the ban on firecrackers on Diwali night.
PM2.5 pollution in the national capital has reduced by over 7 per cent in four years, from 108 micrograms per cubic metre in 2019 to 99.71 micrograms per cubic metre in 2022, the report by NCAP Tracker said.
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The Delhi government has been following the practice of banning all kinds of firecrackers for the last three years.
Vaishnaw on Saturday said he had ordered a high-level probe into the derailment on Friday night.
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WI later confirmed that the game had to be pushed back further. There was, however, no explanation for the inordinate delay.
The 24-metre-high air purifier recorded a PM2.5 concentration of 642 micrograms per cubic metre at the inlet and 453 micrograms per cubic metre at the outlet.
Production, storage and sale of firecrackers in the capital will be punishable with a fine of up to Rs 5,000 and three years jail under Section 9B of the Explosives Act, the minister told a press conference in New Delhi.
Acentral panel directed authorities to ban the plying of 4-wheeled diesel LMVs in Delhi and adjoining NCR districts and the entry of trucks into the capital.
The air quality in the national capital remained poor for the sixth consecutive day on Monday with stubble burning accounting for seven per cent of the capital's PM2.5 pollution.
There will be a blanket ban on the production, sale and use of all types of firecrackers in the national capital, including on Diwali, till January 1, 2023, Environment Minister Gopal Rai said on Wednesday.
The neighbouring cities of Faridabad (469), Greater Noida (464), Ghaziabad (470), Gurgaon (472) also recorded 'severe' air pollution levels.
The CPCB said reduction in PM10 and PM2.5 levels primarily indicate depletion in combustion and industrial sources of pollution which are common to both fractions of particulate matter.
According to the Graded Response Action Plan (GRAP), the air quality is considered to be in the emergency category if the PM2.5 and PM10 levels continue to be above 300 micrograms per cubic metre and 500 micrograms per cubic metre respectively for 48 hours or more.
'When you are travelling in Mumbai when the air quality is bad, you feel suffocated.' 'You may feel uncomfortable breathing Delhi air, but the level of discomfort is higher in Mumbai.'
The central government's Air Quality Early Warning System for Delhi said a "significant improvement in air quality is not likely" owing to slow wind speed, particularly during night time, and contribution from farm fires.
Experts said while meteorological conditions were "moderately" favourable for dispersion of pollutants, a "very high" number of farm fires in Punjab was the primary reason for "severe" air quality.
The national capital on Friday recorded a 24-hour average air quality index of 239. On Thursday, it was 315, the worst since February 12 when the AQI was 320.
The central government's Air Quality Early Warning System for Delhi said a significant increase in the number of "fire points" was observed over Punjab (around 3,000), Haryana and Uttar Pradesh on Wednesday, which is likely to impact the air quality of Delhi-NCR and other parts of northwest India.
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