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 …
Cohort studies of the relationship between air pollution exposure and chronic health effects require predictions of exposure over long periods of time. The researchers developed a unified modeling approach for predicting fine particulate matter, nitrogen dioxide, oxides of nitrogen, and black carbon (as measured by light absorption coefficient) in six …
‘Particulate matter in air not within safe limits’ If you have been battling a nagging cough/cold or worse an upper respiratory tract infection this season, the city’s poor air quality could be the culprit. Official data has revealed that since the onset of winter, the city has not managed to …
Hyderabad: Particulate matter pollution has risen almost three times faster than previously expected in Hyderabad. Though faring better than cities like Delhi, where particulate matter pollution has risen by an astronomical four times, the rise in the city is still among the highest in the world. The average annual concentrations …
The unexpected rains in the city on Saturday brought down the air pollution levels after Diwali celebrations to within permissible limits in some areas. The temperatures, however, remained low on Sunday and no rain till evening allowed the pollution levels to rise again. “The average PM 2.5 level in the …
Thick smoke hung over New Delhi this week as millions lit firecrackers to mark the Diwali festival, but calls for a boycott highlighted growing concerns over air quality in one of the world's most polluted cities. Pollution in the Indian capital reached "severe" levels on Friday, the day after Diwali, …
India's democratic depth was evident this past week as the entire establishment, left and right, came together to congratulate Kailash Satyarthi for his Nobel. All of them, from Narendra Modi on, did so without any qualification. But why should this be unusual? Shouldn't our nation celebrate a rare Nobel? It …
This new study published in the journal Research in Science and Technology reviews effects of fireworks on the air quality of major Indian cities during Diwali. Expressing concern over increase in particulate matter during this festival, it suggests development of serious strategies to control the use of firecrackers to protect …
In January 2014, the New York Times published a news item indicating that the particulate air pollution in Delhi was higher than that in Beijing. Till that time Beijing was considered to be the most polluted city in Asia. This created a furore in Delhi and attempts were made to …
In this study the researchers developed improved global exposure estimates of ambient PM2.5 mass and trend using PM2.5 concentrations inferred from multiple satellites.
The use of reflective surfaces offers one low-cost solution for reducing solar loading to urban environments and the Earth that should be considered as part of sustainable urban design. Here, we characterize the radiative benefits, i.e. the additional shortwave radiation leaving the atmosphere, from the installation of highly reflective 'cool' …
Air Currents From Coast To Dump Pollutants Over Plains The Hudhud cyclone that’s likely to hit the Coromandel coast on Sunday will have a serious effect on Delhi’s air quality. The models prepared by System of Air Quality Weather Forecasting and Research (SAFAR) at Indian Institute of Tropical Meteorology show …
Investigation of the chemical nature and sources of particulate matter at urban locations in four Chinese cities during a severe haze pollution event finds that the event was driven to a large extent by secondary aerosol formation.
This study deals with the effects of fireworks on the air quality over the major cities of India during the festival of light known as “Diwali”. The effects of firecrackers during the festival was assessed from the ambient concentrations of various air pollutants such as sulphur dioxide (SO2), nitrogen dioxide …
China has banned the sale and import of coal with high ash or sulfur content in a move to promote cleaner coal and improve the nation's air quality. Coal with ash content of more than 40 per cent and sulfur of more than 3 per cent are banned from sale …
Bangalore might be called an “air-conditioned city” but its residents are now choking on the most deadly form of air pollution. The respirable suspended particulate matter (RSPM) level is over four times the national permissible limit in certain areas of the city. While the permissible limit for RSPM is 60 …
A recent World Health Organziation (WHO) report on ambient air quality has ranked Ahmedabad as the 10th most polluted in the world, in terms of annual mean concentrations of Particulate Matter (PM2.5). The study was released in May this year. The first on the list is Delhi. Along with Ahmedabad, …
Record Pollution Levels This July & August The weak monsoon this year hasn't just made the city extremely warm and humid; it has also affected its air quality . In July and August, air pollution levels almost always meet the National Ambient Air Quality Standard but this year they were …
Because human activities emit greenhouse gases (GHGs) and conventional air pollutants from common sources, policy designed to reduce GHGs can have co-benefits for air quality that may offset some or all of the near-term costs of GHG mitigation. We present a systems approach to quantify air quality co-benefits of US …
The United States has made progress in reducing dangerous air pollution since 1990 but work remains to reduce risks for the country's most overburdened urban areas, the U.S. Environmental Protection Agency's top official said. The EPA released to Congress its second report on integrated air toxics, citing "substantial progress" toward …
Air pollution across 74 major Chinese cities worsened in July compared to last year, according to government data released on Tuesday, showing that the government is having trouble shaking its smog problem. The 74 cities struggled with pollution on 26.9 percent of the days in July, up from 19.5% a …
