Ozone

Order of the National Green Tribunal regarding ozone pollution across urban India, 21/03/2025

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 …

TERI sounds ozone alarm for 2030 Delhi: vehicle fleet to be blamed

New Delhi: The Energy and Resources Institute has rung alarm bells for the rising ozone levels in the country. Delhi has reason to be especially worried as not only does it suffer from extremely high ozone levels but also tops the list of cities with the highest levels of oxides …

Soil microbial responses to elevated CO2 and O3 in a nitrogen-aggrading agroecosystem

Climate change factors such as elevated atmospheric carbon dioxide (CO2) and ozone (O3) can exert significant impacts on soil microbes and the ecosystem level processes they mediate. However, the underlying mechanisms by which soil microbes respond to these environmental changes remain poorly understood. The prevailing hypothesis, which states that CO2- …

Experts call for crackdown on black carbon

Global warming could be slowed down if governments cleaned up what's known as black carbon from industry and cooking fires, 50 of the world's leading atmospheric scientists said on June 14. Major air pollutants like black carbon, methane and ground level ozone mostly result from the soot and gases formed …

Integrated assessment of black carbon and tropospheric ozone: summary for decision makers

Scientific evidence and new analyses demonstrate that control of black carbon particles and tropospheric ozone through rapid implementation of proven emission reduction measures would have immediate and multiple benefits for human well-being. Black carbon exists as particles in the atmosphere and is a major component of soot; it has significant …

Policy interventions to address health impacts associated with air pollution, unsafe water supply and sanitation, and hazardous chemicals

The purpose of the paper is to review the recent empirical literature relating to the quantification and valuation of the human health impacts of air pollution, hazardous chemicals, and unsafe water and sanitation, and their use in cost-benefit analysis, as an input to environmental policy decision-making. For each of these …

Integrated assessment of black carbon and tropospheric ozone

Efforts to limit climate change generally focus on reducing carbon dioxide emissions caused by burning fossil fuels. However, another byproduct of fossil fuel combustion is black carbon, a major component of soot. Sources include diesel truck and car engines as well as wood fires, kilns, and stoves. Particles of black …

Mecon passes NOx monitoring test

- Plans to build a single system to check multi-gas harmful emissions Ranchi, May 6: Mecon has developed a system that monitors noxious nitrogen oxides in air, a breakthrough it achieved after two years of painstaking research. In the presence of senior company officials, including CMD A.K. Ghosh and a …

Tea Board launches Ozone-friendly tea, certification marks

Sri Lanka Tea Board ceremonially launched the new logo for Ozone-Friendly Ceylon Tea together and Agro-climatic regional names/logos as Certification Marks under Geographical Indication, to protect and add value to premium Ceylon Tea. Worldwide demand and popularity of Ceylon Tea has made it a global brand. The country has allocated …

2 °C or not 2 °C? That is the climate question

Targets to limit the global temperature rise won't prevent climate disruption. Tim Lenton says that policy-makers should focus on regional impacts.

Guidelines for the measurement of ambient air pollutants

Under the provisions of the Air (Prevention & Control of Pollution) Act, 1981, the CPCB has notified fourth version of National Ambient Air Quality Standards (NAAQS) in 2009. This revised national standard aims to provide uniform air quality for all, irrespective of land use pattern, across the country. There are …

Ozone hole has dried Australia, says study

Shift in rainfall patterns across Southern Hemisphere The Antarctic ozone hole is about one-third to blame for Australia's recent series of droughts, say scientists. Writing in the journal Science, they conclude that the hole has shifted wind and rainfall patterns right across the Southern Hemisphere, even the tropics. Their climate …

State of the air 2011

he American Lung Association released its annual report on air quality, State of the Air 2011, which includes lists of the nation’s most polluted metropolitan areas. This year’s report finds that the majority of American cities most-polluted by ozone (smog) or year-round particle pollution (soot) have improved, showing continued progress …

Building partnerships for sound management of chemicals

The chemical industry produces over 100,000 chemicals which have improved the quality of our lives. These chemicals are being produced for purposes ranging from fulfilling domestic and industrial needs, boosting agriculture, making our clothing fire resistant and producing components for our mobile phones or other electronic devices. Every day new …

Vascular and cardiac impairments in rats inhaling ozone and diesel exhaust particles

Mechanisms of cardiovascular injuries from exposure to gas and particulate air pollutants are unknown. We sought to determine whether episodic exposure of rats to ozone or diesel exhaust particles (DEP) causes differential cardiovascular impairments that are exacerbated by ozone plus DEP.

Study to quantify effect of global warming and UV rays on eyes

New Delhi: Are rising temperatures and increased ultraviolet radiation making more and more Indians suffer from serious eye diseases? A large scale first-of-itskind study being spearheaded by All India Institute of Medical Sciences will soon find out. Funded by the Indian Council of Medical Research, the study on the impact …

UNEP year book 2011: emerging issues in our global environment

This 8th Edition of the UN Environment Programme flagship report, the UNEP Year Book 2011, examines global emerging issues and provides the latest environmental science. It also highlights major environmental events and developments over the past year, and presents the most recent data and indicator trends. What are the potential …

Integrated assessment of black carbon and tropospheric ozone: summary for decision makers

This document summarizes findings and conclusions of the assessment report: Integrated Assessment of Black Carbon and Tropospheric Ozone. The assessment looks into all aspects of anthropogenic emissions of black carbon and tropospheric ozone precursors, such as methane. It analyses the trends in emissions of these substances and the drivers of …

Gaseous air pollutants : a review on current and future trends of emissions and impact on agriculture

Air pollution recieves one of the prime concern in India, primarily due to rapid economic growth, industrialization and urbanization with associated increase in energy demands. Lacks of implementation of environmental regulations are contributing to the bad air quality of most of the Indian cities. Air pollutants produced in any air …

Scientific Assessment of Ozone Depletion: 2010

The Ozone Secretariat has released the Scientific Assessment of Ozone Depletion 2010, which presents new and stronger evidence of the effect of stratospheric ozone changes on the Earth’s surface climate, and of the effects of climate change on stratospheric ozone.

  1. 1
  2. ...
  3. 18
  4. 19
  5. 20
  6. 21
  7. 22
  8. ...
  9. 28

IEP child categories loading...