Maximum Achievable Control Technology MACT

The 1990 Clean Air Act Amendments Hst 189 hazardous air pollutants (HAPs) that the EPA must regulate to enforce maximum achievable control technology (MACT) to standards which are to be set by the year 2000. The 33/50 project calls for reduction of emissions of 17 specified solvents to predetermined levels by 1995. The SARA statute provides a mechanism by which the community can be informed of the existence, quantities, and releases of toxic chemicals, and requires that anyone releasing specific toxic chemicals above a threshold level to annually submit a toxic chemical release form to the EPA. The status of various ketones under these regulations is shown in Table 4. 

The 1990 CAAA introduced a new level of control for hazardous (toxic) air pollutants (HAPs). As a result, EPA has identified 189 HAPs for regulation. Rather than rely upon ambient air qnahty standards to set acceptable exposures to HAPs, the CAAA requires that EPA promulgate through the end of the decade Maximum Achievable Control Technology (MACT) standards for controlling HAPs emitted from specified industries. These standards are based on the level of control estabhshed by the best performing 12 percent of industries in each of the categories identified by EPA. 

Air toxics regulations apply to several parts of the pulp and paper milling process. National Emission Standards for Hazardous Air Pollutants (NESHAP) have been developed expressly for two processes of the pulp and paper industry. These standards establish process-based maximum achievable control technologies (MACT) for major sources, which are defined as facilities that emit or have the potential to emit 10 t per year or more of any hazardous air pollutant (HAP) or 25 t per year or more of any combination of HAPs. 

Source U.S. EPA, Fact Sheet—Maximum Achievable Control Technology (MACT) Standards, EPA530-F-05-018, U.S. Environmental Protection Agency, September 2005 and U.S. EPA, 40 CFR Parts 9, 63, 260, 264, 265, 266, 270 and 271, National emission standards for hazardous air pollutants Final standards for hazardous air pollutants for hazardous waste combustors, final rule, Federal Register, 70, 196, October 12, 2005. a Standards expressed as mass of pollutant per million Btu contributed by the hazardous waste. 

U.S. EPA, NESHAPS—Maximum Achievable Control Technology (MACT) Standards, U.S. Environmental Protection Agency, October 2008. Available at http //www.epa.gov/combustion. 

Boatbuilders who use composites have, at most, just one more year before they have to reduce emissions to meet National Emission Standards for Hazardous Air Pollutants (NESH AP), also known as Maximum Achievable Control Technology (MACT) standards. By 23rd Aug. 2004, most boat manufacturing facilities subject to NESHAP must comply with 40 Code of Federal Regulations (CFR) Part 63, Subpart VVW. The deadline applies to existing boat manufacturing facilities that are major sources of hazardous air pollutants (HAPs). Existing sources are those that commenced construction on or before July 14, 2000. ( New sources , those that commenced construction after this date, must comply with emission limits at startup.) Major sources are facilities that have the potential to... 

The Maximum Achievable Control Technology (MACT) program in the Clean Air Act Amendments of 1990 are examined with reference to compliance by the coatings industries. The nature of hazardous air pollutants, (HAPs) are discussed, and methods to determine the HAP content of coatings are outlined. Compliance options under... 

Metals emissions, e.g., mercury emissions, in relation to EPA s hazardous waste combustion maximum achievable control technology (MACT) standards and a site-specific, risk-based analysis that is particularly focused on silver and other metals impacted by the formation of chlorinated and nitrated volatile metals. 

Under the Clean Air Act Amendments of 1990, the mandate is to establish, during the first phase, technology-based maximum achievable control technology (MACT) emission standards that apply to the major categories or subcategories of sources of the listed hazardous air pollutants (EPA, 1997). In addition, Title III provides for health-based standards that address the issue of residual risks due to air toxic emissions from the sources equipped with MACT and to determine whether the MACT standards can protect health with an ample margin of safety. 

In 1995, the amendments to the Clean Air Act included requirements for maximum achievable control technology (MACT) for pollutants, including dioxins and metals. The EPA has since promulgated regulations that will have to be met by a modified baseline process for the Pueblo site (EPA, 1999). In addition, EPA is reviewing the effects of dioxins on human health because some evidence indicates dioxins may be more harmful in the food chain than previously thought (Kaiser, 2000). If dioxin emission standards are modified, analytical procedures will need to be reviewed. 

In October 2005, under authority of the Clean Air Act and RCRA, the EPA issued its final national emission standards for hazardous air pollutants from hazardous waste combustors. The standards require hazardous waste combustors to meet hazardous air pollutant emission standards reflecting the application of maximum achievable controllable technology (MACT). These standards are applicable to any hazardous waste incinerator, including the chemical agent disposal facilities. In some states, separate air permits are issued to hazardous waste incinerators, while in others the RCRA permit requirements are adopted or changed to implement the requirements of the new MACT emissions standards for controlling the following pollutants ... 

In October 2005, the EPA issued a final rule updating the RCRA emission standards for hazardous waste incinerators based on maximum achievable control technology (MACT) that is commonly employed under the CAA. Therefore, hazardous waste incinerators are subject to MACT combustion unit performance standards and operating requirements, in addition to RCRA standards. 

TABLE 22-10 Maximum Achievable Control Technology (MACT) Standards from 40 CFR Part 63 as of June 2004... 

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