Air Quality Monitoring

Judgment of the National Green Tribunal regarding plywood factories operating in Yamuna Nagar, Haryana, 27/05/2025

Judgment of the National Green Tribunal, May 27, 2025 in the matter of Sumit Saini Vs Shree Ram Steel Industries & Others. Sumit Saini, resident of village Damla, District Yamuna Nagar, Haryana had sent a letter petition dated May 14, 2022 to the NGT. The application said that around 25 …

Delhi chokes as air quality plummets

Residents of the Indian capital, who thought they had conquered air pollution a decade ago, are once again choking on exhaust fumes and dust and New Delhi has regained its status as one of the world’s dirtiest cities, according to environmental campaigners and official air quality data. Scientists have sounded …

4,000 tons of pollution in Beijing air

A total of 4,000 tons of pollutants are estimated to be in the air in urban areas of Beijing on serious pollution days, according to a researcher with the Chinese Academy of Sciences quoted by Beijing Morning Post. The calculation was made by Wang Yuesi, and based on the size …

Air quality in New Delhi is called 'very poor'

A government scientist said on Friday that air quality in New Delhi has worsened this week and is now "very poor," although it should not be compared to China's capital which has been reeling recently under massive pollution. Gurfan Baig of the state-run Indian Institute of Tropical Meteorology said that …

Air pollution prompts Beijing to limit fireworks

Air pollution concerns have prompted Beijing authorities to ask residents to set off fewer fireworks during the upcoming Spring Festival. "To improve the air quality and create a favorable environment for you and your family members, please set off fewer fireworks or no fireworks, in order to reduce emissions of …

Beijing shuts factories, removes cars, but pollution stays high

Beijing temporarily shut down 103 heavily polluting factories and took 30 percent of government vehicles off roads to combat dangerously high air pollution, state media reported on Tuesday, but the capital's air remained hazardous despite the measures. Air quality in Beijing has mostly stayed above "very unhealthy" and "hazardous" levels …

China's air pollution again at danger levels

Beijing residents advised to stay indoors as much as possible with severe pollution at levels 'beyond index' Dangerously high pollution levels have shrouded Beijing in smog for the second time in about two weeks, forcing airlines to cancel flights because of poor visibility and prompting the city government to warn …

Beijing residents told to stay indoors as air quality reaches ‘hazardous’ levels

Pollution woes of the Chinese capital worsened today with thick smog blanketing the city again after a brief respite as air quality reached “hazardous” level of contamination forcing people to stay indoors. As people in the capital city and surrounding areas experience very heavy smog, State television has asked them …

Beijing shuts factories, removes cars, but pollution stays high

Beijing temporarily shut down 103 heavily polluting factories and took 30 percent of government vehicles off roads to combat dangerously high air pollution, state media reported on Tuesday, but the capital's air remained hazardous despite the measures. Air quality in Beijing has mostly stayed above "very unhealthy" and "hazardous" levels …

Beijing vows more efforts to improve air quality

Beijing will strengthen its efforts to slash the density of major air pollutants by two percent this year, an official said Tuesday. The capital will take 180,000 old vehicles off the road and promote clean energy autos among government departments, the public and the urban cleaning sector, which includes street …

Pollution check at Metro stns by IIT

IIT Delhi’s civil engineering department and the Delhi Metro Rail Corporation (DMRC) have undertaken a study to find out the levels of pollutants in the air at the Patel Chowk and Chandni Chowk stations. IIT will also formulate an indoor air quality monitoring protocol - the minimum air quality limits …

China premier-designate says pollution solution "long-term process

Days after choking smog blanketed China's capital, the country's premier-designate added his voice to appeals to curb the toxic haze, but he offered few specifics and said there was no quick fix. The comments from Vice Premier Li Keqiang, who is expected to take over as premier at a national …

China orders more air quality early warnings

China's environmental watchdog on Monday ordered greater efforts to issue early warnings for air quality, as hazardous air pollution has hit many parts of the country in recent days. The Ministry of Environmental Protection issued a circular asking local authorities to step up analysis on air pollution trends and publicize …

Beijing air pollution soars to toxic levels

Yellow Alert Issued As Dense Smog Covers Large Parts Of China; Traffic Hit Beijing: Chinese meteorological authority has issued a yellow alert for fog indicating dangerous levels of smog in China’s northern and western regions, including major cities like Beijing and Chengdu. It said parts of China were facing the …

Beijing moves to curb prolonged haze pollution

Choked in dense smog for three consecutive days, Beijing started emergency response measures on Sunday to curb the air pollution at hazardous levels. Monitoring data showed the Air Quality Index in most parts of the capital reached 500, the maximum pollution level, on Sunday, the third hazy, grey day. Beijing …

Chinese media urges action on air pollution

Chinese media said on Monday the government had to take urgent action to tackle air pollution, which has blanketed parts of the country at dangerous levels in recent days, and one newspaper called for a re-think of a "fixation" on economic growth. China's media are under tight Communist Party control …

Pollution "worst on record" in Beijing: Greenpeace

Air quality in Beijing was the "worst on record" on Saturday and Sunday, according to environmentalists, as the city's pollution monitoring centre warned residents to stay indoors with pollution 30-45 times above recommended safety levels. The Chinese capital, home to around 20 million people, has been wrapped in thick smog …

Estimation of citywide air pollution in Beijing

There has been discrepancies between the daily air quality reports of the Beijing municipal government, observations recorded at the U.S. Embassy in Beijing, and Beijing residents’ perceptions of air quality. This study estimates Beijing’s daily area PM2.5 mass concentration by means of a novel technique SPA (Single Point Areal Estimation) …

Lower price, higher pollution

Pasakha Industrial Estate: A few power intensive industries at the Pasakha industrial estate are turning off their gas cleaning plants (GCP) at night to cut down costs, say officials of the National Environment Commission Secretariat (NECS). Last November, the secretariat installed special closed circuit TV cameras at undisclosed locations along …

Why 2012 was a year of pollution extremes for Delhi

Three extreme polluting events made 2012 one of Delhi’s worst years, according to scientists with the System for Air Quality Forecasting and Research (SAFAR) project under the Ministry of Earth Sciences. SAFAR is India’s sole project for forecasting the quality of air. Launched by the ministry for the Commonwealth Games …

The Thick Haze of Cairo

The air quality in downtown Cairo is more than 10 to 100 times of acceptable world standards. Cairo has a very poor dispersion factor because of lack of rain and its layout of tall buildings and narrow streets, which create a bowl like effect that traps pollutants. The main air …

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