منابع مشابه
Air pollution: EPA standard.
REPORTS Encounter with Venus: L. Colin. Initial Pioneer Venus Magnetic Field Results: Dayside Observations: C. T. Russell, R. C. Elphic, J. A. Slavin . . . . .. .. .. . . . . .... Plasma Waves Near Venus: Initial Observations: F. L. Scarf, W. W. L. Taylor, I. M. Green.................................. Initial Observations of the Pioneer Venus Orbiter Solar Wind Plasma Experiment: J. Wolfe et al...
متن کاملEPA Proposes Tighter Particulate Air Pollution Standards
Smoking Policies Tighten in Halls of Academe As the fall 2012 semester gets under way, at least 744 U.S. colleges and universities have made their campuses completely smoke free, indoors and out, and nearly threequarters of those have banned all forms of tobacco on campus. Ty Patterson, executive director of the National Center for Tobacco Policy, told the Christian Science Monitor that many co...
متن کاملEPA programs of vinyl chloride monitoring in ambient air.
Before development of an emission standard for vinyl chloride, the Environmental Protection Agency (EPA) conducted three programs to measure vinyl chloride (VC) concentrations in air around plants which either manufacture VC or use it. A brief monitoring survey conducted by EPA Regional Offices found VC in ambient air around poly(vinyl chloride) (PVC) production plants. As a consequence of this...
متن کامل&epa Toxicological Review of Ingested Inorganic Arsenic
July 2005 NOTICE This document is an IRIS review draft for the Science Advisory Board (SAB). It has not been formally released by the U.S. Environmental Protection Agency and should not at this stage be construed to represent Agency position on this chemicaL. It is being circulated for review of its technical accuracy and science policy implications. U.S. Environmental Protection Agency Washing...
متن کاملFire and Pesticides: Air Quality Considerations
The classes of primary chemical products naturally produced by the combustion of forest fuels include: carbon dioxide, water, carbon monoxide, particulate matter, methane and nonmethane hydrocarbons, polynuclear aromatic hyrocarbons, nitrogen and sulfur oxides, aldehydes, free radicals, and inorganic elements. Pesticides are a class of secondary chemical byproducts of fires that have been of so...
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ژورنال
عنوان ژورنال: Science
سال: 2006
ISSN: 0036-8075,1095-9203
DOI: 10.1126/science.312.5772.351b