Air Quality Standards

Order of the National Green Tribunal regarding violation of environmental norms by a tyre pyrolysis plant, village Sakauti, Shamli, Uttar Pradesh, 28/05/2025

Order of the National Green Tribunal in the matter of Dr. Amit Kumar Vs State of Uttar Pradesh & Others dated 28/05/2025. The applicant has raised a grievance against setting up of a tyre pyrolysis plant by M/s Adideva Carbon LLP. According to the applicant, the tyre pyrolysis plant has …

Air quality monitoring regime in India: an overview

This briefing note is the first of a 3-part series on the subject of pollution monitoring in India. The note will support the thematic online map on

Govt plans to enforce Euro-II emission standards

The Ministry of Environment has set itself a challenging task of introducing Euro-II emission standards for petrol driven vehicles from July this year and for diesel driven automobiles from July 2012. The National Assembly was informed on Monday that to cut down on increasing air pollution in the country, the …

Most polluted cities in the country

This document presented by the MoEF in response to a recent parliament question focuses on the state of pollution in our cities. Gobindgarh in Punjab has been rated as the most polluted city while Delhi has been rated as the most polluted metro followed by Kolkata. Lok Sabha question and …

Independent environmental assessment: Beijing 2008 Olympic games

The Beijing 2008 Olympic Games were widely acclaimed as one of the most spectacular sporting events ever held, not least as a result of the sumptuous and dazzling opening ceremony and the high standards of competition from athletics and swimming to horse-jumping and yachting. But what of the environment which …

City pollution beats national average

Hyderabad Sept. 16: Air pollution levels in the city have climbed further beyond the national ambient air quality standards. Abids, Punjagutta, Paradise and Charminar zones have recorded higher levels of total suspended particulate matter (TSPM) and respirable suspended particulate matter (RSPM), according to studies conducted by the AP Pollution Control …

Epidemiological study on effect of air pollution on human health (adults) in Delhi

Central Pollution Control Board has been entrusted with the responsibility of preparation of nation-wide plans for control of air pollution under the Air (Prevention & Control of Pollution) Act, 1981. For rational planning of pollution control strategies, scientific information is needed on nature, magnitude and adverse health effects of air …

Ozone nation: EPA standard panned by the people

After a decade of deliberations and review of more than 1,700 new studies, the U.S. Environmental Protection Agency (EPA) announced the new primary standard for ground-level ozone in March 2008. The new standard, 75 ppb, is being assailed from all sides

Draft of ambient air quality criteria/standards

Air quality standards provide a legal framework for air pollution control. An air quality standard is a description of a level of air quality that is adopted by a regulatory authority as enforceable. The basis of development of standard should be to provide a rational for protecting public health from …

Ozone restrictions not enough

The us government has tightened federal air quality standards for smog-forming ozone, but not to the extent recommended by the us Environmental Protection Agency's scientific advisers. The rules, which cover average concentrations of ground-level ozone, have lowered the current standard of 80-84 parts per billion (ppb) to 75 ppb. Air …

EU agrees on air quality

European states have agreed on legally binding limits on the airborne concentration of ultra-fine dust. The new directive on ambient air quality sets standards for reducing the concentration of fine particles known as PM2.5. Ultrafine particulate matter poses the biggest threat to human health as it can work its way …

Hazy reasoning behind clean air

Last month, The Washington Post reported that President George W. Bush had personally intervened to weaken new regulations to control smog just as they were about to be announced by the Environmental Protection Agency (EPA). In response, advocates of tighter standards predictably charged that the president had overturned a scientific …

White House ignored air quality advice

For many researchers, the Bush administration will be best remembered for the way it has manipulated scientific advice for political ends. The latest evidence of this tactic is a controversial proposal to change the way US air-quality standards are set, according to the Union of Concerned Scientists (UCS) in Washington …

Rethinking ozone production

More than a hundred people live in cities that fail to meet international standards for air quality. Efforts to improve conditions in these urban areas have usually focussed on reducing emissions of reactive hydrocarbons, nitrogen oxide free radicals and primary and secondary sources of particulate matter.

EPA adjusts a smog standard to White House preference

In December 2005, Stephen Johnson dunked himself in hot water. Johnson, the administrator of the U.S. Environmental Protection Agency (EPA), decided to discard advice from a scientific advisory committee when he set a major air-quality standard for soot. Scientists and environmental groups were outraged. This time Johnson did it again …

Revised ozone standard angers environmentalists

The US Environmental Protection Agency (EPA) is once again under fire for ignoring its science advisers

US agency under fire over mercury trading

THE US Environmental Protection Agency is in trouble again. Already under fire for failing to get tough on carbon dioxide emissions, the agency has now had its scheme for dealing with mercury pollution ruled illegal.

Panel : EPA proposal for air pollution short on science

A major attempt to streamline-or, critics claim, politicize-the revision of important air-quality standards has run into trouble. One year ago, the U.S. Environmental Protection Agency (EPA) overhauled its lengthy process of updating the National Ambient Air Quality Standards (NAAQS), which have far-reaching impacts on many regulations. Some critics feared the …

In Court

hard on pollutants: A recent court settlement has required the US Environmental Protection Agency (EPA) to review environmental hazards of nitrogen oxides and sulphur oxides and revise, as necessary, the National Ambient Air Quality Standards for the pollutants under its Clean Air Act. The settlement comes as a result of …

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