Order of the National Green Tribunal in the matter of News Item titled “CSE report finds dangerous increase in ozone pollution across urban India” appearing in Down to Earth dated 06.08.2024. The Principal Bench of the NGT heard the matter on March 21, 2025. In the original application, registered suo …
Outdoor air pollution is a major determinant of health worldwide. The greatest public health effects are from increased mortality in adults. However, both PM and O3 also cause a wide range of other, less serious, health outcomes; and there are effects on mortality and morbidity of other pollutants also, e.g. …
The Parties to the Montreal Protocol are informed by three Panels of experts. One of these is the Environmental Effects Assessment Panel (EEAP), which deals with two focal issues. The first focus is the effects of increased UV radiation on human health, animals, plants, biogeochemistry, air quality, and materials. The …
Green groups were not happy with the drop in pollutants and said interdepartmental cooperation should be strengthened. According to the department, Eastern District had 213 hours when the air quality health index was high, very high or serious last year, a 31 per cent increase from the previous year. A …
Exposure to ambient air pollution is a major risk factor for global disease. Assessment of the impacts of air pollution on population health and the evaluation of trends relative to other major risk factors requires regularly updated, accurate, spatially resolved exposure estimates. We combined satellite-based estimates, chemical transport model (CTM) …
More than half the European passenger fleet is diesel-powered. Although the European Union has been progressively tightening vehicle emissions for decades, new diesel cars still produce on-road nitrogen oxide emissions that far exceed the current standard. Efforts to reduce diesel emissions would likely make the cars more costly, but experts …
Question raised in Lok Sabha on Ground Level Ozone, 22/12/2015. The Ozone level monitoring is conducted by Central Pollution Control Board at 04 locations in Delhi, 02 locations in Bangalore, 02 locations in Chennai and 02 locations in Lucknow. The ozone formation is the result of primary pollutants and a …
As the national capital and surrounding areas gasp under a thick pall of smog, sales of indoor air purifiers have zoomed, here's an examination of the various questions around these machines Ahead of President Barack Obama’s visit to New Delhi in January, the US embassy, worried over the quality of …
The Arctic Monitoring and Assessment Programme (AMAP), one of the six Working Groups of the Arctic Council, has released its assessment report on black carbon and ozone as Arctic climate forcers, which complements an earlier report on methane as Arctic climate forcer as part of AMAP's assessment on short-lived climate …
The long-term rise in global temperatures, the dominant cause of which is the anthropogenic emission of greenhouse gases, combined with the effects of a developing El Niño, have resulted in unusual global warmth in 2015. The global-average near-surface temperature for 2015 is likely to be the warmest on record according …
The global average surface temperature in 2015 is likely to be the warmest on record and to reach the symbolic and significant milestone of 1° Celsius above the pre-industrial era. This is due to a combination of a strong El Niño and human-induced global warming, according to the World Meteorological …
When it’s protecting us from harmful ultraviolet rays of the sun at higher altitudes, ozone is great. But at ground-level, the gas is classified as an air pollutant that poses serious health risks, and its increase in Delhi has experts alarmed. Ozone is not found naturally at ground-level; it is …
The observation of high aerosol hygroscopic growth in Madrid is mainly limited to specific atmospheric conditions, such as local stagnation episodes, which take place in winter time. One of these episodes was identified in December 2014 and the hygroscopic growth factor (GF) measurements obtained in such episode were analysed in …
The Arctic Monitoring and Assessment Programme (AMAP), one of the six Working Groups of the Arctic Council, has released its assessment report on methane as a climate forcer. The report concludes that methane mitigation can complement action on carbon dioxide (CO2) mitigation in reducing Arctic warming, and contribute to reducing …
GCOS has released its report Status of the Global Observing System for Climate (GCOS-195) which has been submitted to the UNFCCC in December in Paris. The results of the global observing system have proved invaluable and have underpinned the IPCC fifth assessment report. However, as the IPCC identifies, there are …
A new WHO report has called for an urgent need to reduce emissions of black carbon, ozone and methane — as well as carbon dioxide — which all contribute to climate change. Frequently described as short-lived climate pollutants, these “climate killers” not only produce a strong global warming effect, but …
A new WHO report highlights the urgent need to reduce emissions of black carbon, ozone and methane - as well as carbon dioxide – which all contribute to climate change. Black carbon, ozone and methane – frequently described as short-lived climate pollutants (SLCPs) - not only produce a strong global …
Scientists at the University of California, Berkeley found exposure to high levels of pollution lead to health problems in both infants and adults. The study had only limited evidence to demonstrate there was an increase in adult mortality, though some evidence pointed to higher mortality in the elderly . Conducted …
China's emissions of two key pollutants fell slightly in the first half of 2015, according to the environment ministry, as authorities stepped up punitive measures to combat environmental degradation. Emitted levels of sulfur dioxide and nitrogen oxide - both associated with acid rain - were down 4.6 percent and 8.8 …
It's completely invisible, but the distinctive smell of electrical discharge after photocopying is a tell-tale sign of ozone in the air. Ozone is a component of what we refer to as 'smog' and on hot sunny days, in cities with high traffic volumes, more ozone is formed. It's a problem, …
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 …
