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Polyhalogenated Dibenzodioxins/Furans (HDDs/HDFs) Test Results


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CAS Nos.   Appendices A, B, and C

The PRM contained 14 chemicals to be tested for contamination with 2,3,7,8-substituted HDDs/HDFs. An additional list of 20 chemicals not currently in production, would have to be tested if commercial production begins or resumes. EPA also proposed to require that manufacturers (except small manufacturers) of 12 precursor chemicals be required to submit data concerning production volume, process, reaction conditions, exposure, use, and disposal under TSCA Section 8(a). An amendment to the proposed rule added 18 chlorinated and brominated benzenes to the proposed rule.

The FRM applies to 61 of the 64 chemicals in the modified PRM. Two chemicals, 2,4-dichlorophenoxyacetic acid and 2,4-dichlorophenoxybutryric acid, were removed from the list of commercially produced compounds requiring testing because these chemicals are both pesticides and pesticide intermediates. Pentachloronitrobenzene was removed from the list of precursor molecules requiring reporting under Section 8(a) of TSCA because it is covered under FIFRA.

The 61 chemicals covered under the FRM are listed in Appendices A, B, and C. Appendix A lists the 12 chemicals in commerce requiring contaminant testing. Appendix B lists the 20 chemicals that would require contaminant testing if commercial production begins or resumes. Appendix C lists the 29 precurser chemicals for which manufacturers (except small manufacturers) are required to submit data concerning production volume, process, reaction conditions, exposure, use, and disposal under TSCA Section 8(a).

Proposed Test Rule (PRM)/46 Chemicals
50 FR 51794; December 19, 1985
51 FR 37612; October 23, 1986/Addition of 18 chemicals to list of precursor chemicals (PRMA)

Final Test Rule (FRM)/32 Chemicals
52 FR 21412; June 5, 1987

Modifications
54 FR 49760; December 1, 1989/Technical Amendment
55 FR 7322; March 1, 1990/Technical Amendment
56 FR 23228; May 21, 1991/Technical Amendment
57 FR 24958; June 12, 1992/Technical Amendment
58 FR 30989; May 28, 1993/Extension for Testing affecting 6 chemicals
62 FR 35103; June 30, 1997/Technical Amendment - Chloranil

Project Manager: J. Schaeffer, John Harris

Section Chief: R. Northrop, Frank Kover

Status: Ongoing testing of specified chemicals in commercial production for the presence of certain chlorinated and brominated dibenzo-pdioxins and brominated dibenzopdioxins and dibenzofurans (also referred to as dioxins/ furans). Test results on the following have been forwarded to the Risk Assessment Division for review and disposition: Decabromodiphenyloxide (Ameribrom, Great Lakes, Ethyl); Octabromodiphenyloxide (Ameribrom, Great Lakes, Ethyl); Pentabromodiphenyloxide (Akzo, Ameribrom, Great Lakes); Tetrabromobisphenol A (Ameribrom, Great Lakes, Ethyl); 2,4,6Tribromophenol (Great Lakes); 1,2Bis(tribromophenoxy)ethane (Great Lakes); Tetrabromobisphenol A, allyl ether (Great Lakes); Tetrabromobisphenol A, bisethoxylate (Great Lakes); and Tetrachloro1,4-benzoquinone (Chloranil). Appendix D for information on voluntary Product Stewardship Program activities relating to these chemicals.

Announced Receipt of Test Data

Data was received from Hoechst Celanese Corporation with levels of 2,3,7,8-polychlorinated dioxins/furans in chloranil (54 FR 52449; December 21, 1989).

Sandoz Chemicals submitted data on the presence of these polychlorinated dibenzodioxins/furans in 2,3,5,6-tetrachloro-2,5-cyclohexadiene-1,4-dione (chloranil) (55 FR 3482; February 1, 1990).

A & D International and Chugai Boyeki Corp. submitted data on contamination of chloranil by dioxans/furans (55 FR 21934; May 30, 1990).

Ethyl Corp. and Great Lakes Chemical Corp. submitted chemical analyses of tetrabromobisphenol A, 2,4,6-tribromophenol, decabromodiphenyloxide, and octabromodiphenyloxide for dioxins and furans (57 FR 27972; June 23, 1992).

Ameribrom, Inc. and Ethyl Corp. submitted analyses of tetrabromobisphenol A and Great Lakes Chemical Corp. submitted analyses of the allyl ether of tetrabromobisphenol A (57 FR 53898; November 13, 1992).

Test data for decabromodiphenyloxide (CAS No. 1163-19-5 were submitted by Ameribrom, Inc. pursuant to a test rule and were received by EPA on April 26, 1994. This submission describe the determination of polybrominated dibenzo-p-dioxins and dibenzofurans in this chemical substance by high-resolution gas chromatography/medium high-resolution mass spectrometry (57 FR 59111; December 14, 1992).

Test data for octabromodiphenyl oxide (CAS No. 32536-52-0) were submitted by Ameribrom, Inc. pursuant to a test rule and were received by EPA on January 11, 1993. This submission describe the analytical protocol for the determination of polybrominated dibenzo-p-dioxins and dibenzofurans in this chemical substance by high-resolution gas chromatography/medium high-resolution mass spectrometry. Test data for 1,2-bis(tribromophenoxy)ethane (CAS No. 37853591) were submitted by the Great Lakes Chemical Corporation pursuant to a test rule and were received by EPA on February 2, 1993. This submission describe the analytical protocol for the determination of polybrominated dibenzo-p-dioxins and dibenzofurans in this chemical substance by high-resolution gas chromatography/medium high-resolution mass spectrometry (58 FR 21302; April 20, 1993).

Test data for pentabromodiphenyl oxide (CAS No. 32534-81-9) were submitted by the Great Lakes Chemical Corporation and Ameribrom, Inc. pursuant to a test rule and were received by EPA on March 24, 1993. These submission describe the determination of polybrominated dibenzo-p-dioxins and dibenzofurans in this chemical substance by high-resolution gas chromatography/medium high-resolution mass spectrometry (58 FR 21302; April 20, 1993).

Test data for tetrabromobisphenol-A (CAS No. 79-94-7) and decabromo diphenyloxide (CAS No. 1163-19-5 were submitted by Ameribrom, Inc.pursuant to a test rule and were received by EPA on April 26, 1994. These submission describe the determination of polybrominated dibenzo-p-dioxins and dibenzofurans in these chemicals by high-resolution gas chromatography/medium high-resolution mass spectrometry (59 FR 27547; May 27, 1994).

Chugai Boyeki Corp. submitted data on contamination of chloranil by dioxans/furans which was received by EPA on March 26, 1996 (61 FR 21179; May 9, 1996).

Results of Testing Table



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