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The article focuses on the political battles over the Environmental Protection Agency (EPA) during the U.S. President George W. Bush administration. The author reports that Bush came to Washington DC determined to wed environmental policy with market based reality and was aided by a Republican controlled U.S. Congress. Democratic Senator Barbara Boxer has reportedly taking a major role in the arguments over arsenic in drinking water, air quality and perchlorate in foods. INSET: Pressures to Regulate.

The article discusses the plan of the Bush administration to change the process for setting air-quality standards and may allow political appointees to help draft the advisory reports. This is in relation to the plan of the U.S. Environmental Protection Agency to beef up air-quality controls by cutting ground-level ozone limits from 80 parts per billion to 75.

Reports on federal ozone standards, and measures being taken to ensure cooperation with them. Constraints on the expansion of polluting industries; Requirement that states deliver clean air plan to the Environmental Protection Agency by 2007; Risk of losing federal transportation funding; Effect of the creation of tighter rules for ozone, the main element in smog, on traffic-challenged areas like Raleigh-Durham-Chapel Hill, North Carolina.

The article offers information on the effectiveness of the changes in Promulgated Rule of the National Emission Standards for Hazardous Air Pollutants, also known as Boiler MACT on biomass power. It stated that the changes in the boiler MACT has been proposed by the U.S. Environmental Protection Agency (EPA).

The article highlights the impact of the changes to Environmental Protection Agency's (EPAs) National Ambient Air Quality Standards (NAAQS) for lead in the U.S. It states that proximity of the sampler to source emissions and populations, meteorological conditions and background conditions must be considered to assess the potential risks of airborne lead. It notes that the changes in federal regulations will require majority of facilities to reassess their monitoring programs to ensure compliance.

The article offers information and opinions about environmental regulation in the United States. Topics include the rules regarding ozone and air pollution standards issued by the U.S. Environmental Protection Agency (EPA), the regulations under the Clean Air Act, and disagreement between Republicans and Democrats about government regulation.

The article reports on the air quality standards for soot released by the U.S. Environmental Protection Agency (EPA). On its air quality standard for soot, EPA reduced the allowable amount of fine particles, averaged over 24 hours, but did not tighten the annual average for soot as recommended by the Clean Air Scientific Advisory Committee. Environmental groups criticized the new standards as inadequate.

The article reports on the proposal of the U.S. Environmental Protection Agency (EPA) to lower standards for particulate matter (PM). The proposed modifications will substantially tighten short-term exposure to high levels of fine PM by almost 50%. Inhalable PM 24-hour standard is also being proposed for reduction to 70 micrograms per cubic meter. Research has demonstrated a link between PM and various cardiovascular and respiratory problems. The Clean Air Act mandates the EPA to undertake a periodic review of air quality standards. Particle standards were last updated in 1997.

The staff of the United States Environmental Protection Agency (EPA) made recommendations for the agency management to revise the current particulate matter standards for fine particles and the inhalable portion of coarse particles, based on evidence that suggests to EPA scientists that more protection is needed than is provided under current air standards. The air quality standards for PM under the Clean Air Act were first established in 1971. The agency significantly changed the standards in 1987, when they changed the indicator of the standards to regulate inhalable particles smaller than, or equal to, 10 micrometers in diameter. In 1997, EPA again revised the PM standards and established a separate standard for fine particles. EPA released its second draft staff paper on the assessment of PM standards in January 2005 which recommends changing EPA's health-based standards for coarse particles to avoid double-regulating fine particles.

Reports on the proposal of the United States Environmental Protection Agency on emission standards and sulfur-control requirements. Inclusion of automobiles and light-duty trucks in the same tailpipe emission standards; Requirement for oil refiners to reduce sulfur level in gasoline; Extension of time for industries to upgrade their facilities.

The article discusses the U.S. Environmental Protection Agency's (EPA) dispersion modeling under the National Ambient Air Quality Standards' (NAAQS) comprehensive approach to limiting pollution. Topics discussed include a completed modeling exercise if the emissions impact are below the significant impact level (SIL), issues occurring with the one-hour nitrogen dioxide NAAQS and the need for a balance in providing reliable power to the grid and meeting stringent air quality standards.

The article offers updates on issues such as global climate control and emission controls on mercury for the U.S. The attendees at the Copenhagen Conference in Bonn, Germany pointed out that U.S. Congress had failed to pass climate control legislation. The Environmental Protection Agency (EPA) published its final amendments to the National Emission Standards for Hazardous Air Pollutants (NESHAP) on September 9, 2010 that revised emission limits for mercury at major and area sources.

The article reports that the Environmental Protection Agency (EPA) will review the national air quality standard for ground-level-ozone. It mentions that EPA will reconsider the 0.075 parts per million (ppm) ozone standard set by the Bush Administration in 2008. It also mentions that the said level was higher than the standard set by the agency's Clean Air Scientific Advisory Committee. Moreover, EPA will also review the standard set by the American Chemistry Council.

The article reports on the decision of Judge Thelma Wyatt Cummings Moore of Superior Court over a carbon dioxide emission regulation for a coal-fired power plant in Fulton County, Georgia. According to the judge, Georgia's environmental agency, the U.S. Environmental Protection Agency (EPA), and the Congress are not up to the task of regulating carbon dioxide emissions, and therefore, she must make them. Moreover, Moore declared that federal air pollution control laws required permits that covered all pollutants that could be regulated under the Clean Air Act.

The article reports on the proposed revisions made by the EPA (Environmental Protection Authority) to the national ambient air quality standards (NAAQS) for lead. The proposal seeks to improve the existing lead monitoring network which requires monitors to be located near large sources of lead emissions an in urban areas with more than one million people. The proposal may serve as a precursor of other things to come with regard to EPA's treatment of non-threshold criteria pollutants as lead is an important criteria air pollutant.

The article reports on the proposal to amend the general provisions of the National Emission Standards for Hazardous Air Pollutants (NESHAP) by the U.S. Environmental Protection Agency in January 2007. The proposal would replace the 1995 memorandum for maximum achievable control technology (MACT) standards. Under the proposed amendments, a major source may become an area source at any time by limiting its potential to emit hazardous air pollutants (HAPs) to below the major source thresholds of 10 tons per year of a single HAP.

The article focuses on a proposal from the U.S. Environmental Protection Agency to revise new source review (NSR) requirements to improve industry investment in energy efficient and lower emission technologies. It cites several provisions of the proposal including one that will allow plants to avoid NSR requirements if its emissions were covered in an existing permit. The agency will take comments on the proposal for 60 days after its publication. Environmental groups believe that the proposal favors the plan to increase industry profits.

This article states that a U.S. federal appeals court has unanimously rejected part of Environmental Protection Agency's (EPA) revisions to the New Source Review (NSR) rule, which would have allowed industrial facilities to avoid installing emission controls if the cost of the proposed construction is less than 20% of the value of the entire process unit. The ruling by the full U.S. Circuit Court of Appeals for the District of Columbia upheld a March 17 ruling by a three-judge panel of the same court, which found that EPA's 20% exemption clause violates the Clean Air Act. EPA has not said whether it will appeal the ruling to the U.S. Supreme Court. The Clean Air Act's NSR provisions require industrial facilities to install state-of-the-art emission controls when making significant plant upgrades.

Presents the author's views on impact of U.S. Environmental Protection Agency (EPA) emission standard regulations on the performance of elastomer seals in a variety of truck systems. Chemical components of truck engine elastomer seals; Effects of low-sulphur diesel fuel by-products on engines; Considerations for engineering elastomer components based on EPA standards.

The article deals with the opposition of the science advisory panel of the U.S. Environmental Protection Agency to the proposed revisions to the air quality standard for fine particles in February 2006. The panel stated that the proposal does not reflect the advisory panel's recommendations. Hence, state air quality regulators say it is unusual for the agency to not adopt the recommendations of the Clean air Scientific Advisory Committee.

Reports on U.S. government policies concerning the environment and the chemical industry as of November 22, 2004. Grants awarded by the U.S. Environmental Protection Agency to universities to study the environmental risk posed by nanotechnologies; Effort by the National Institute of Environmental Health Sciences to study how specific genes contribute to diseases related to chemical exposure; Environmental groups' attack against the U.S. Environmental Protection Agency's emission standard for air pollution from industrial boilers and process heaters.

Introduces the new Maximum Achievable Control Technologies (MACT) rules to complete the the MACT standard rulemaking process by the Environmental Protection Agency in the U.S. Impact of the new rules on certain industries; Completion of the series of technology-based national emissions standards under the 1990 Clean Air Act Amendments; Directives and scope of the new MACT rules.

Reports that chlor-alkali chemical manufacturing facilities using mercury cells must meet tougher air pollution standards for mercury under a rule issued by the U.S. Environmental Protection Agency. Objective of the regulation; Provisions of the new Clear Air Act; Assurance that the law will have no significant impact on the market for products made using chlorine or sodium hydroxide.

Reports on the promise of U.S. Environmental Protection Agency administrator Mike Leavitt that his policies would improve progress in environmental protection. Plan of Leavitt to release an action plan for improving air quality; Effort of Leavitt to implement air quality standards that use the eight-hour standards for ozone and fine particles.

Reports on a lawsuit planned by states and a coalition of environmental groups to overturn the New Source Review rule by the U.S. Environmental Protection Agency in 2003. Basis for the lawsuit; Provision of the rule governing air pollution controls; Arguments of the groups against the routine maintenance rule.

Reports on the decision of the U.S. Environmental Protection Agency on the air pollution control program of the New Source Review (NSR). Features of the NSR program; Response of the critics to the rule; Percentage of cost threshold for determining whether pollution controls are required.

Reports on the decision of the Ninth Circuit Court of Appeals in San Francisco, California, to overrule a decision made by the U.S. Environmental Protection Agency that requires California to meet clean air standards. Information on the federal oxygenate requirement; Significance of the ruling; Argument raised by California on fuel additive methyl tert-butyl ether.

Reports the revision made by the United States Environmental Protection Agency to an environmental policy on emission reports by chemical plant managers. Issues surrounding the policy.