hazardous air pollutants การใช้

• Control of Hazardous Air Pollutants From Mobile Sources : Early Credit Technology Requirement Revision
• Further chemicals released are benzene and 1, 3-butadiene that are also hazardous air pollutants.
• Proposals for limiting hazardous air pollutants are still being intensively debated, participants in the process say.
• The National Emission Standards for Hazardous Air Pollutants program was created to expand much broader industries and activities.
• Mercury, a highly toxic element, was declared a hazardous air pollutant by the Environmental Protection Agency in 1971.
• This method produces significant VOC ( volatile organic compound ) and HAP ( hazardous air pollutant ) emissions.
• Asbestos  which often is present in older building materials  is regulated as a hazardous air pollutant.
• A recent European study identified PM2.5 as the most health-hazardous air pollutant, causing an estimated 492, 000 premature deaths.
• The objections are based on highly technical details of the controls to be imposed on emissions of hazardous air pollutants.
• The public can use this index as a tool to determine their exposure to hazardous air pollutants based on visibility range.
• EPA's 1998 " Cluster Rule " ( CR ) addressed additional toxic wastewater pollutants, and regulated hazardous air pollutant emissions as well.
• Dibenzofuran is cited in the United States Clean Air Act 1990 Amendments-Hazardous Air Pollutants as a volatile hazardous air pollutant of potential concern.
• Dibenzofuran is cited in the United States Clean Air Act 1990 Amendments-Hazardous Air Pollutants as a volatile hazardous air pollutant of potential concern.
• For example, one may want to calculate the exposure to a hazardous air pollutant for a geographic area, which includes the various microenvironments and age groups.
• Other pollutants, such as benzene and 1, 3-butadiene, are regulated as hazardous air pollutants whose emissions must be lowered as much as possible depending on technological and practical considerations.
• The amount of free formaldehyde, as well as formaldehyde which may be released during the baking process is of concern as these are considered to be hazardous air pollutants.
• The next step in the development of TRAQSIM is to incorporate methods to model the dispersion of particulate matter ( PM ) and hazardous air pollutants ( HAPs ).
• The air emission regulations in the CR, a component of the National Emissions Standards for Hazardous Air Pollutants ( NESHAPS ) under the Clean Air Act, became effective in 2001.
• The United States Environmental Protection Agency published two documents proposing National Emissions Standards for Hazardous Air Pollutants ( HAP ) concerning hazardous emissions produced during the making of flexible polyurethane foam products.
• 2, 4-D is one of the most widely used herbicides in the world . 2, 4-D is volatile and by EPA assessment is a hazardous air pollutant that is difficult to contain.