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 …
For multiple reasons, the winters are the worst in Delhi, India - harsh winters, limited air movement, and restraining meteorological conditions worsen the already topped out air pollution problem. Access the real time air quality monitoring data from nine stations in Delhi here, operated by the Central Pollution Control Board …
The Centre for Science and Environment has reviewed the magnitude of the winter air pollution in Delhi and has pressed the alarm button. This time the winter pollution is not only high but is also different. While the serious concern over very high levels of tiny particles persists, more pollutants …
This paper mainly deals with the measurement of air quality by observing the concentration of pollutants in the atmosphere namely suspended particulate matter, NOx and SO2 at five different selected locations in Lucknow city. The locations for the study have been chosen on the basis of land use pattern. Each …
Ground level ozone concentrations ([O3]) typically show a direct linear relationship with surface air temperature. Three decades of California measurements provide evidence of a statistically significant change in the ozone-temperature slope (?mO3-T) under extremely high temperatures (> 312 K). This ?mO3-T leads to a plateau or decrease in [O3], reflecting …
OZONE is harmful not only to human beings but also to plants. Modern bread wheat, Triticum aestivum, which is the staple diet of a majority of the world populace, is an ozone-sensitive crop. Studies carried out between 1980 and 2007 show that ozone ranging between 30 and 200 parts per …
New Delhi: The biggest worry for Delhi as far as air pollution goes seems to be carbon monoxide, followed closely by particulate matter. The first day of the air pollution monitoring and forecasting system, which has been set up specially for the Commonwealth Games, threw up these results on Thursday. …
On world Ozone Day, Chief Minister Sheila Dikshit said this was an “important occasion to re-dedicate ourselves to maintain the balance of nature”. Stating that modernisation should not lead to destruction but “must bring addition to the quality of life”, she said this would help in “fulfilling our commitment towards …
The ozone layer that shields life from the sun's harmful rays is projected to recover from harmful chemicals by mid-century, but it will take longer over the polar regions, a United Nations study said on Thursday. Ozone depletion -- blamed for higher ultraviolet radiation that causes skin cancers and cataracts …
Bhopal, Sept 15: The Environment and Forest of Central Government, Zonal Office, ,Bhopal, Central Pollution Control Board, Bhopal, Environmental Planning and Coordination Organization , Dainaver Institute Bhopal and Centre of environment education of MP on a joint venture organising World Ozone Day programme on 16th of September 2010 at 1.00 …
International efforts to protect the ozone layer-the shield that protects life on Earth from harmful levels of ultraviolet rays-are a success and have stopped additional ozone losses and contributed to mitigating the greenhouse effect. The executive summary of the Scientific Assessment of Ozone Depletion 2010 provides new information about the …
Ground-level concentrations of ozone (O3) and fine particulate matter [? 2.5 µm in aerodynamic diameter (PM2.5)] have increased since preindustrial times in urban and rural regions and are associated with cardiovascular and respiratory mortality. We estimated the global burden of mortality due to O3 and PM2.5 from anthropogenic emissions using …
The Yangtze River Delta (YRD) is the fastest growing economic development region in China and one of the most densely populated regions in the world, with recent dramatic increases in energy consumption and atmospheric emissions. To inform air pollution control strategy design, Zhou et al. studied how different emission sectors …
The manual provides new approaches to prevent emissions of CFCs during the operation and servicing of equipment and catalogues steps to recycle the CFCs and retrofit the equipment. Developing countries, called Article 5 countries under the Montreal Protocol on Substances That Deplete the Ozone Layer are also embarking on the …
Delhi is gearing up to host Commonwealth Games in October 2010. This latest analysis of air quality trends in Delhi and their implications on CWG 2010 by Dr. Sarath Guttikunda suggests innovative interventions for fast & effective air quality management. Delhi, the capital city of India, is gearing up to …
This latest CPCB report provides details of the monitoring study conducted to measure Ozone levels, VOCs including carbonyls in ambient air in the city of Kolkata. It also includes recommendations for control of VOCs releases. Volatile Organic Compounds or VOCs play an important role in tropospheric chemistry byaffecting the OH …
Volatile Organic Compounds or VOCs play an important role in tropospheric chemistry by affecting the OH radical concentration, production of organic acids and photochemical oxidants. In order to develop efficient air pollution abatement strategies, it is important to know the sources and fate of VOCs, specially in the South-East Asian …
The air quality index (AQI) is an "index" determined by calculating the degree of pollution in the city (as an average) or at the monitoring point and includes five main pollutants
Volcanic eruptions release a large amount of sulphur dioxide. This is oxidized to sulphate and can then form sulphate aerosol, which can affect the Earth's radiation balance. Here, past volcanic eruptions and atmospheric conditions are investigated by using sulphur and triple oxygen isotope measurements of atmospheric sulphate preserved in the …
Acute exposure to ambient air pollution has been associated with cardiac outcomes, often within hours of exposure. The incidence of effects within the population depends on a number of factors, including genetic differences. Baja et al. examined the associations of air pollutants with heart-rate
