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 …
Nine out of 10 new diesel cars break new EU pollution limits when tested on roads rather than test tracks, according to a new report. On average, the cars emit seven times the permitted level of NOx gasses, with the worst car producing 22 times the legal limit. Models from …
Hydrocarbons are key precursors to two priority air pollutants, ozone and particulate matter. Those with two to seven carbons have historically been straightforward to observe and have been successfully reduced in many developed cities through air quality policy interventions. Longer chain hydrocarbons released from diesel vehicles are not considered explicitly …
A research team led by Kezhong Zhang, Ph.D., at the Wayne State University School of Medicine's Center for Molecular Medicine and Genetics, has discovered that exposure to air pollution has a direct adverse health effect on the liver and causes liver fibrosis, an illness associated with metabolic disease and liver …
Despite a steady decrease in emissions since 2002, transportation remained the most significant air pollution source in the urban centers throughout 2014, the Environmental Protection Ministry revealed on Wednesday. The ministry published its findings in its 2014 Air Quality Report, drawing data from more than 100 air quality monitoring stations …
Elemental composition of PM2.5 and PM10 was measured from 16 locations in Greater Kolkata in Eastern India. Sampling was carried out in the winter months of 2013–2014. PM2.5 and PM10 mass concentrations ranged from 83–783 μg/m3 and 167–928 μg/m3 respectively. 20 elements were measured with an Agilent 7700 series ICP–MS …
The State Pollution Control Board, Odisha has been monitoring the Ambient Air Quality at 32 locations in 13 towns/cities, viz., Angul-Talcher, Balasore, Berhampur, Bhubaneswar, Cuttack, Kalinganagar, Keonjhar, Konark, Paradeep, Puri, Rayagada, Rourkela and Sambalpur under the National Air Quality Monitoring Programme (NAMP) and State Air Quality Monitoring Programme (SAMP). This …
China presently contributes the largest amount of anthropogenic mercury (Hg) emission into the atmosphere in the world. Over the past decade, numerous studies have been conducted to characterize the concentration and forms of atmospheric Hg in China, which provide insights into the spatial and temporal distributions of atmospheric Hg through …
New research from Berkeley Earth has found that air pollution in China is directly implicated in the deaths of roughly 1.6 million people a year. In other words, roughly 17% of annual deaths in China are related to the country’s air pollution problems. To be more exact here, the findings …
Nitrogen oxides, released from fossil fuel use and other combustion processes, affect air quality and climate. From the mid-1990s onward, nitrogen dioxide (NO2) has been monitored from space, and since 2004 with relatively high spatial resolution by the Ozone Monitoring Instrument. Strong upward NO2 trends have been observed over South …
The Kathmandu Valley in South Asia is considered as one of the global "hot spots" in terms of urban air pollution. It is facing severe air quality problems as a result of rapid urbanization and land use change, socioeconomic transformation and high population growth. Original Source
Road dusts contribute a large fraction of air pollution in urban environment of India. In the present work, contamination assessment of ions and elements i.e. F−, Cl−, NO3 − , 2 SO4 − , NH4 + , Na+, K+, Mg2+, Ca2+, As, Cr, Mn, Fe, Ni, Cu, Zn, Pb and …
A yearlong near-real-time characterization of non-refractory submicron aerosol (NR-PM1) was conducted at an urban (Atlanta, Georgia) and rural (Look Rock, Tennessee) site in the southeastern US using the Aerodyne aerosol chemical speciation monitor (ACSM) collocated with established air-monitoring network measurements. Seasonal variations in organic aerosol (OA) and inorganic aerosol species …
Using a mass transfer model and the volatility basis set, we estimate the volatility distribution for the organic aerosol (OA) components during summer and winter in Paris, France as part of the collaborative project MEGAPOLI. The concentrations of the OA components as a function of temperature were measured combining data …
China has recently made available hourly air pollution data from over 1500 sites, including airborne particulate matter (PM), SO2, NO2, and O3. We apply Kriging interpolation to four months of data to derive pollution maps for eastern China. Consistent with prior findings, the greatest pollution occurs in the east, but …
Grimy city buildings and statues aren’t just unsightly, they also contribute to smog. A new study says sunlight triggers the release of smog-forming nitrogen oxide compounds from dirt coating buildings and statues in urban areas. And this process may be a surprisingly significant contributor to air pollution in cities. The …
Field studies in polluted areas over the last decade have observed large formation of secondary organic aerosol (SOA) that is often poorly captured by models. The study of SOA formation using ambient data is often confounded by the effects of advection, 5 vertical mixing, emissions, and variable degrees of photochemical …
South Africa has one of the largest industrialized economies in Africa. Emissions of air pollutants are particularly high in the Johannesburg-Pretoria metropolitan area, the Mpumalanga Highveld and the Vaal Triangle, resulting in local air pollution. This study presents and evaluates a setup for conducting modeling experiments over southern Africa with …
PUNE: The air quality is usually good in monsoon because air pollutants get washed away in the rain water. But, below average rainfall this year in July has resulted in a surge in pollution levels across the city. According to records of the system of air quality forecasting and research …
We’ve come to rely on Google Street View for everything from roads to hiking paths to coral reefs, but we may soon rely on it for something even more important – mapping urban air pollution. Tech startup Aclima just announced a partnership with Google Earth Outreach to equip Google Street …
Question raised in Lok Sabha on National Ambient Air Quality Standards, 28/07/2015. The National Ambient Air Quality Standards (NAAQS) notified by the Government are at Annexure-I. The ambient air quality is monitored at 593 locations in 249 cities, towns and industrial areas across 28 States and 5 Union Territories by …
