Toxics release inventory

Chlor—alkah production is the largest iadustrial source of mercury release ia the United States (see Alkali and chlorine products). For the 1991 reporting year, chlor—alkah faciUties accounted for almost 20% of the faciUties that reported releases of mercury to the U.S. Environmental Protection Agency (EPA) for inclusion onto the Toxics Release Inventory (TRI) (25). 

Toxics Release Inventory Public Data Release, EPA-745-R-93-003, U.S. Environmental Protection Agency, Washington, D.C., 1993. 

According to recent Toxics Release Inventory (TRI) data, methyl parathion was discharged to air from two processing sites in the United States in 1999 (TRI99 2001). No releases to soil or water were reported. The TRI data should be used with caution because only certain facilities are require to report. This is not an exhaustive list. 

Releases to air, land, and water occur primarily through its use as a restricted-use insecticide. The media of most importance for human exposure are contaminated air and soil. According to the Emergency Planning and Community Right-to-Know Act of 1986, 42 U.S.C. Section 11023, industries are required to submit chemical release and ofif-site transfer information to the EPA. The Toxic Release Inventory (TRI), which contains this information for 1987, became available in May of 1988. This database is updated yearly and provides a list of industrial production facilities and emissions. 

TRI99. 2001. TRI explorer Providing access to EPA s toxics release inventory data. Washington,... 

DC Office of Information Analysis and Access, Offices of Environmental Information, U.S. Environmental Protection Agency. Toxic Release Inventory. HttD //www.eDa.gov/triexpIorer/. April 27, 2001. 

Endosulfan has been released to the environment mainly as a result of its use as an insecticide. There are no known natural sources of the compound. Endosulfan and endosulfan sulfate are not contained in the list of chemicals for which releases are required to be reported to EPA for the SARA Section 313 Toxic Release Inventory (TRI) (EPA 1997a). 

Releases of diisopropyl methylphosphonate are not required to be reported under SARA Section 313 consequently, there are no data for these compounds in the 1995 Toxics Release Inventory (TRI) (TRI95 1997). 

Comparison of Toxic Release Inventory between Industries. 145... 

Although this section does not present historical information regarding TRI chemical releases over time, note that, in general, toxic chemical releases have been declining.13 Although onsite releases have decreased, the total amount of reported toxic waste has not declined because the amount of toxic chemicals transferred offsite has increased. Better management practices have led to increases in offsite transfers of toxic chemicals for recycling. More detailed information can be obtained from U.S. EPA s annual Toxics Release Inventory Public Data Release book, or directly from the Toxic Release Inventory System database. 

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