Chemicals source category

In the November 10,1997 preamble to the proposed Subpart MMM MACT standards, EPA also noted its plan to combine the 11 individual agricultural chemical sources categories into a single category under Ibis tide. Pesticide Active Ingredi t Production, as was done in the June 23,1999, promulgation. 

Part 415 inorganic chemicals manufacturing point source category... 

Hazardous Air Pollutants. Tide 3 of the CAAA of 1990 addresses the release of hazardous air poUutants (HAPs) by requiring both the identification of major stationary sources and area source categories for 189 toxic chemicals and the promulgation of control standards. Major sources of air toxics, also referred to as HAPs, include any stationary source or group of sources emitting 10 or more tons/yr of any single Hsted toxic chemical or 25 tons/yr of a combination of any Hsted toxic. Area sources of HAPs include smaller plants that emit less than the 10 or 20 tons/yr thresholds. The major sources of HAPs are typically industrial faciHties. However, Tide 3 requites the EPA to study potential health affects associated with emissions of HAPs from electric UtiHty boilers (11). 

Development Documentfor Effluent Eimitations Guidelines and Standards for the Inorganic Chemicals Manufacturing, Point Source Category (proposed), EPA Pubhcation 440/1-79/007, Washington, D.C., June 1990. 

Analysis of Clean Water Act Effluent Guidelines Pollutants. Summary of the Chemicals Regulated by Industrial Point Source Category U.S. EPA, Washiagton, D.C., 40 CFR Parts 400-475, 1991. 

In a comprehensive study of trichloroethylene emission sources from industry conducted for EPA, the major source was degreasing operations, which eventually release most of the trichloroethylene used in this application to the atmosphere (EPA 1985e). Degreasing operations represented the largest source category of trichloroethylene emissions in 1983, accounting for about 91% of total trichloroethylene emissions. Other emission sources include relatively minor releases from trichloroethylene manufacture, manufacture of other chemicals (similar chlorinated hydrocarbons and polyvinyl chloride), and solvent evaporation losses from adhesives, paints, coatings, and miscellaneous uses. 

NESHAP for Source Categories Organic HAPs from Synthetic Organic Chemical Manufacturing Industry (proposed) Yes EPA 1992... 

Mirex is regulated by the Clean Water Effluent Guidelines as stated in Title 40, Sections 400-475, of the Code of Federal Regulations. Mirex has a specific effluent limitation for the pesticide chemicals point source category (EPA 1978f). No effluent guidelines exist for chlordecone. 

EPA. 1992a. Environmental Protection Agency. Pesticide chemicals manufacturing category effluent limitations guidelines, pretreatment standards, and new source performance standards. 40 CFR 455. Federal Register 57 12560-12601. 

EPA. 1988d. Analysis of clean water act effluent guidelines pollutants. Summary of the chemicals regulated by industrial point source category 40 CFR Parts 400-475. Draft. Prepared by Industrial Technology Division (WH 552) Office of Water Regulations and Standards. Office of Water. 

EPA regulates 3,3 -dichlorobenzidine under the Clean Air Act (CAA) and has designated 3,3 -dichloro-benzidine as a hazardous air pollutant (HAP) (EPA 1994 U S. Congress 1990). The major source category for which the national emissions standards for new stationary sources are applicable to 3,3 -dichlorobenzidine emissions is the synthetic organic chemicals manufacturing industry (SOCMl)—equipment leaks (EPA 1994). 

Subpart W Equipment leaks of VOCs In the Synthetic Organic Chemicals Manufacturing Industry (SOCMI)-chemlcals produced by affected facilities National Emission Standards for Hazardous Air Pollutants for Source Categories Yes 40 CFR 60.489 ERA 1983a... 

USEPA. Development Document for Interim Einal Effluent Limitations Guidelines for the Pesticide Chemical Manufacturing Point Source Category, Report EPA 440/I-75/060-d USEPA, 1976. Wong, J.M. Pesticides Wastewater Management. Paper presented at the 3rd Annual Hazardous Materials Management Conference and Exhibition/West, Long Beach, California, 1987. 

Receptor models are widely used tools for apportioning concentrations of pollutants to different sources. They can be factor analytical methods (PMF, PCA, UNMIX, etc.) or chemical mass balance (CMB). On the one hand, these methods revealed to be very valuable to identify the main sources/categories of PM pollution (road traffic, secondary particles, fuel oil combustion, sea salt, etc.) but on the other hand they experienced difficulties in separating the contributions of collinear sources such as mineral dust (natural resuspension) and road dust (anthropogenic) or co-variant sources such as vehicle exhaust and road dust [34, 44, 45, 49, 55, 58, 110-113]). Significant improvements were made with the use of combination of models or constrained models such as the Multilinear Engine (ME-2). 

Inorganic Chemical Manufacturing Point Source Category— Aluminum chloride production subcategory-Applicability Yes 40 CFR 415, Subpart A EPA1982b... 

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