U.S. Clean Air Act Amendments

Although the majority of molecules in cmde oils and refined products are hydrocarbons, the U.S. Clean Air Act amendment of 1990 mandated the addition of oxygenated compounds to gasoline in many parts of the United States. The requirement is usually that 2% (w/w) of the fuel be oxygen, which... 

Because of its low sulfur content, lignite is becoming mote important. The U.S. Clean Air Act Amendments of 1990 have resulted in economic premiums fotlow sulfur coal corresponding to 10/t for emission allowances at 500/t of SO2 (32). 

U.S. Clean Air Act Amendments, PubHc Law 101-549, Tide 3, Hazardous Air Pollutants, U.S. Government Printing Office, Washington, D.C., 1990. 

The U.S. Clean Air Act Amendments of 1990 (CAAA90) (1) were a revision of the original U.S. Clean Air Act passed in 1963, amended in 1970, and amended again in 1977 (2). It is one of the most significant pieces of environmental legislation ever enacted. Estimates of the yearly economic impacts of CAAA90 range from U.S. 12 billion to U.S. 53 billion in 1995 and from U.S. 25 billion to U.S. 90 billion by 2005. 

Before the U.S. Clean Air Act Amendments of 1990 (3), hazardous air pollutants were regulated through federal promulgation of the National Emission Standards for Hazardous Air Pollutants (NESHAPS). The EPA listed only eight hazardous air pollutants under NESHAPS. 

The emission control requirements set for municipal incinerators by the U.S. Clean Air Act Amendments of 1990 (1) are extensive and complex. Many of the final standards have not been established as of the date of publication of this book. A thorough study of the regulations is necessary for any person dealing with incinerator technology and control. 

U.S. Chemical Safety and Hazard Investigation Board, 21 832 U.S. Clean Air Act Amendments of 1990, 18 566. See also Clean Air Act entries United States entries U.S. Code of Federal Regulations (CFR), 12 30. See also Code of Federal Regulations (CFR)... 

Significant New Alternatives Policy (SNAP). Section 612 of the U.S. Clean Air Act Amendments of 1990 requiring the U.S. EPA to publish lists of acceptable and unacceptable alternatives for ozone-depleting substances (ODSs). 

The U.S. Clean Air Act Amendments of 1990 listed 189 substances as hazardous air pollutants, of which 37 substances have been detected in power plant emissions [1]. Of the 37 hazardous air pollutants, 11 are trace metals such as mercury. It is of greatest concern because of the perceived risks from its environmental release, it occurs mainly in the vapor form, and because is not captured effectively by existing particulate removal systems. 

More recently, the EPA has announced plan to reduce non-road diesel fuel sulfur from the current average of 3400 ppm to 500 ppm by 2007 and further to 15 ppm by 2010 . The U.S. Clean Air Act Amendments of 1990 and related new fuel regulations by the U.S. EPA and government regulations in many countries call for the production and use of more environmentally friendly transportation fuels with lower contents of sulfur and aromatics. 

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