SLfop-S - ~F1? - o/< Unrtad String Environmental Pre t* :t "ir. A9«ncy Offic® of Pcrticid s a d 7 jxic Sutwtjhcto OHic« of Penicd* Pt *j j u ;TS-76GC] W^ington. DC 20460 oEPA Pesticide Fact Sheet Name of Chemical: carbon tetrachloride (and others) Reason for Issuance: Special Review Action Document Issued Date Issued: August, 1987 Fact Sheet Number: n DESCRIPTION OF CHEMICALS Chemical names: Carbon tetrachloride - CCI4 Carbon disulfide - CS2 Ethylene dichloride - C2H2CI2 Chloroform - CHCI3 Other names: Carbon disulfide - carbon bisulfide Ethylene dichloride - EDC Trade names: Carbon tetrachloride - Benzinoform, Carbona, Dowfume 75, ENT 4705, Flukoide, Halon 104 EPA Shaughnessy Code: Carbon disulfide 016401 Ethylene dichloride 042003 Chloroform 020701 Carbon tetrachloride 016501 CC14 with EDC 016502 CCI4 with EDB and EDC 016503 Chemical Abstracts Service (CAS) number: CS2 - 75-15-0 EDC - 107-06-2 CHC13 - 67-66-3 CCI4 - 56-23-5 Pesticide Type: Fumigant Year of Initial Registration: 1956 Chemical family: Chlorinated hydrocarbons ------- 2. USE PATTERNS AND FORMULATIONS Application sites: Harvested grains throughout storage, transfer, milling, distribution, and processing phases. Type of formulations: Gas Types and methods of application: Fumigation 3. SUMMARY OF REGULATORY POSITION AND RATIONALE The Environmental Protection Agency (EPA) is proposing to revoke the exemption from the requirement of a tolerance and the food additive regulations for carbon tetrachloride, carbon disulfide, ethylene dichloride, and chloroform. The tolerance exemptions and food additive regulations are for the use of these chemicals as grain fumigants. This action is being taken because all products containing CCI4, CD, EDC, or chloroform as an active ingredient for use as a grain fumigant have been cancelled either voluntarily by the registrants or by administrative action. The data presently available to the Agency indicate that carbon disulfide, ethylene dichloride, and chloroform are not persistent and the,re is no anticipation of significant residues resulting from the,last legal application of these chemicals, on or before June 30, 1986. There is no need to establish action levels to replace the existing tolerance exemptions upon their revocat ion. These limited data also indicate the presence of CCI4 residues in or on raw grain, intermediate grain products, and ready-to-eat grain products. Although these data suggest that residues of carbon tetrachloride are decreasing with time, it would be difficult to utilize these data to establish tolerances or action levels to replace the current tolerance exemption for CCI4 upon its revocation. It is doubtful that the presence of low levels of residues of this pesticide for this short-term period would pose a risk to the public health. EPA has discussed the appropriateness of action levels with the Food and Drug Administration (FDA). They agree that action levels should not be established and that FDA will not take en- forcement action if residues are detected in grain or grain-based consumer products after the exemptions are removed if it appears such residues resulted from the legal use of the fumigants on or before June 30, 1986. FDA has notifified the Agency in writing of this position. ------- COtlTACT PERSON Mark T. Boodee, Special Review Branch, Registration Division, Office of Pesticide Programs (TS-767C), 401 M Street, S.W., Washington, D.C. 20460, (703) 557-7402. DISCLAIMER: The information presented in this Pesticide Fact Sheet is for informational purposes only and may not be used to fulfill data requirements for pesticide registration or reregistration. ------- |