FEDERAL CONTAMINATED SITE RISK ASSESSMENT IN CANADA

Transcription

1 Santé Contaminated Sites Program FEDERAL CONTAMINATED SITE RISK ASSESSMENT IN CANADA PART II: HEALTH CANADA TOXICOLOGICAL REFERENCE VALUES (TRVS)

2

3 FEDERAL CONTAMINATED SITE RISK ASSESSMENT IN CANADA PART II: HEALTH CANADA TOXICOLOGICAL REFERENCE VALUES (TRVS) September 2004 Prepared by: Environmental Assessment Servies Safe Environments Programme

4 Our mission is to help the people of maintain and improve their health. Published by authority of the Minister of Également disponible en français sous le titre : Partie II : Les valeurs de référene toxiologiques de Santé This publiation an be made available in/on omputer diskette/large print/audio-assette/braille upon request. Her Majesty the Queen in Right of, 2004 Cat. H46-2/04-368E ISBN

5 PREFACE Federal Contaminated Site Risk Assessment in : Part II: Toxiologial Referene Values (TRVs) was prepared in support of the Federal Contaminated Sites Aelerated Ation Plan (FCSAAP), a program designed to ensure improved and ontinuing federal environmental stewardship as it relates to ontaminated sites loated on federally owned or operated properties. This doument is a ompanion to Federal Contaminated Site Risk Assessment in : Part I: Guidane on Human Preliminary Quantitative Risk Assessment (PQRA) and was prepared by the Environmental Assessment Servies Division, Safe Environments Programme,. As the pratie of risk assessment advanes, and as the FCSAAP proeeds, new and updated information on toxiologial referene values and other aspets of risk assessment will be published. As a result, it is antiipated that revisions to this doument will be neessary from time to time to reflet this new information. should be onsulted at the address below to onfirm that the version of the doument in your possession is the most reent edition and that the most reent TRVs are being used. Questions, omments, ritiisms, suggested additions or revisions to this doument should be direted to: Contaminated Sites Program Environmental Assessment Servies Safe Environments Programme 2720 Riverside Drive Sir Charles Tupper Building, 4 th Floor, PL 6604M Ottawa, ON K1A 0K9 Fax: (613) s-s@h-s.g.a See also: i

6 TABLE OF CONTENTS Prefae...i Abbreviations and Aronyms...iii Toxiologial Referene Values (TRVs)...1 Notes...4 Referenes...4 ii

7 ABBREVIATIONS AND ACRONYMS DWQG FCSAAP JECFA JMPR PCB PCDD PCDF PQRA SF inh SF oral TC TC 05 TD 05 TDI TRV UR Inh WHO/FAO Drinking water quality guidelines Federal Contaminated Sites Aelerated Ation Plan Joint Expert Committee on Food Additives Joint Meeting on Pestiide Residues Polyhlorinated biphenyl Polyhlorinated dibenzo-dioxin Polyhlorinated dibenzo-furan Preliminary quantitative risk assessment slope fator fator Tolerable onentration Tumorigeni onentration: onentration (air, water) found to indue a 5% inrease in the inidene of, or deaths due to, tumours onsidered to be assoiated with exposure Tumorigeni dose: dose found to indue a 5% inrease in the inidene of, or deaths due to, tumours onsidered to be assoiated with exposure Tolerable daily intake Toxiologial referene value unit risk World Organization / Food and Agriulture Organization iii

8 HEALTH CANADA TOXICOLOGICAL REFERENCE VALUES (TRVS) Name Non-Carinogeni Toxiologial Referene Values TDI a (mg/kg-d) Aldiarb TC (mg/m 3 ) Carinogeni Toxiologial Referene Values TD 05 b slope fator from TC 05 unit risk from TC 05 (mg/m 3 ) -1 DWQG a Aldrin + dieldrin Aniline b Arseni E E h Atrazine + metabolites Azinphos-methyl Barium Bendioarb Benzene 1.46E E E-01 Benzo(a)pyrene 1.37E E Benzo(b)fluoranthene 8.20E E-03 Benzo(j)fluoranthene 6.80E E-03 Benzo(k)fluoranthene 5.50E E-03 Bis(2-ethyl-hexyl) phthalate b Bis(Chloro-methyl) ether 4.13E E+00 Boron Bromoxynil Cadmium E E+00 Carbaryl 0.01 Carbofuran 0.01 Carbon tetrahloride 4.90E-02 Chloramine, mono Chlorobenzene 0.43 b 0.01 b Chlorpyrifos 0.01 Chromium, hexavalent E E+01 Chromium, total E E+01 Copper 0.03 d Cyanazine Cyanide, free DDT 0.02 d 0.01 e Diazinon Dibutyl phthalate b Diamba

9 Name Dihlorobenzene, 1,2- Non-Carinogeni Toxiologial Referene Values TDI a (mg/kg-d) 0.43 b TC (mg/m 3 ) Dihlorobenzene, 1, b b Carinogeni Toxiologial Referene Values TD 05 b slope fator from TC 05 unit risk from TC 05 (mg/m 3 ) -1 DWQG a Dihlorobenzidine, 3,3'- 6.76E-02 Dihloroethane, 1,2-8.06E E-02 h Dihloroethylene, 1, Dihloromethane 0.05 b 9.90E E E-05 2,4-D 0.01 Dihorophenol, 2,4-0.1 Dilofop-methyl Dimethoate Dinoseb Diquat Diuron Fluoride, inorgani Glyphosate 0.03 Hexahlorobenzene b 8.3E-01 Indeno(1,2,3-d)pyrene 1.6E E-03 Lead Malathion 0.02 Merury, inorgani (ioni) d Methoxyhlor 0.1 Methyl metharylate 0.05 b b Methyl tertiary- butyl ether 0.01 b b Metolahlor Metribuzin Monohlorobenzene Nikel hloride Nikel oxide Nikel subsulphide b b b Nikel sulfate 0.05 b b Nikel, metalli Nikel, oxidi/sulphidi/ soluble b 5.5E E+00 Nikel, soluble 3.1E E-01 Nikel, sulphidi 2

10 Name Non-Carinogeni Toxiologial Referene Values TDI a (mg/kg-d) Nitrilotriaeti aid (NTA) 0.01 TC (mg/m 3 ) Carinogeni Toxiologial Referene Values TD 05 b slope fator from TC 05 unit risk from TC 05 (mg/m 3 ) -1 DWQG a Paraquat (as dihloride) Parathion Pentahlorobenzene b Pentahlorophenol Phenol 0.06 d Phorate Piloram 0.02 PCBs PCDD/PCDF PCDD/PCDF f 1.00E-08 b 2.0E-09 g Simazine Styrene 0.12 b b Terbufos Tetrahlorobenzene, 1,2,3,4- Tetrahlorobenzene, 1,2,3,5- Tetrahlorobenzene, 1,2,4, b b b Tetrahloroethylene b 0.36 b Tetrahlorophenol, 2,3,4, Toluene 0.22 b 3.8 b Trihlorobenzene, 1,2, b Trihlorobenzene, 1,2, b b Trihlorobenzene, 1,3, b b Trihloroethylene 2.5E E E-04 Trihlorophenol,2,4,6-2.0E-02 Trifluralin Uranium (non-radiologial) d Vinyl hloride Xylene, mixed isomers 1.5 b 0.18 b 2.60E-01 3

11 NOTES a From Canadian Guidelines for Drinking Water Quality, Supporting Doumentation (, 2002), unless otherwise indiated. b For non-arinogens, TDI and TC values taken diretly from (1996); for arinogens, oral slope fator derived as: SF oral = 0.05/TD 05 ; TD 05 from (1996). unit risk derived as: UR Inh = 0.05/TC 05 ; inhalation slope fator derived as: SF Inh = 0.05/(TC 05 x 16 m 3 /day/70.7 kg); TC 05 from (1996); inhalation rate from Allan and Rihardson (1998) and Rihardson (1997); adult body weight from Rihardson (1997). d From CCME Soil Quality Guidelines and supporting doumentation on health-based guidelines prepared by. e WHO/FAO Joint Meeting on Pestiide Residues (JMPR) (the Food Diretorate,, generally endorses and applies the TDIs for pestiide residues derived by the JMPR). f Grant, D.L. (1983) (this TDI is still applied by for the assessment of PCB exposure from foods and other soures). g Offiially, the TDI for PCDD/PCDF is 10 pg/kg-d (, 1996); however, the WHO/FAO Joint Expert Committee on Food Additives and Contaminants (JECFA) reently proposed a revised TDI of 2 pg/kg-d. The Food Diretorate,, generally endorses and applies the TDIs for food ontaminants derived by the JECFA, and it is antiipated that this revised TDI will be implemented. Therefore, it is reommended that preliminary quantitative risk assessments (PQRAs) for PCDDs/PCDFs in employ this more onservative TDI. h Although the TRV from the Canadian Drinking Water Quality Guidelines Supporting Doumentation is presented, it is reommended that the omparable TRV from the more reent assessment (, 1996) be employed for risk haraterization. REFERENCES Allan, M., and G.M. Rihardson Probability density funtions desribing 24-hour inhalation rates for use in human health risk assessments. Human and Eologial Risk Assessment 4(2): Grant, D.L Regulation of PCBs in. In: PCBs: Human and Environmental Hazards. Edited by F.M. D Itri and M.A. Kamrin. Toronto: Butterworth Publishers; pp Based Tolerable Daily Intakes/Conentrations and Tumorigeni Doses/Conentrations for Priority Substanes. Report no. 96-EHD-194. Ottawa, Ontario Guidelines for Canadian Drinking Water Quality, Supporting Doumentation. Ottawa, Ontario. Available online at: Rihardson, G.M Compendium of Canadian Human Exposure Fators for Risk Assessment. Ottawa: O'Connor Assoiates Environmental In. 4