Protocol for the Derivation of Environmental and Human ... - CCME

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Appendix B Then, the remainder (T R ) can be added to the calculated intakes for produce (Equation 3), meat (Equation 7), and milk (Equation 11), to provide the new estimate of total intake (T AG ) from on-site and off-site exposure at an agricultural site (Equation 13). This estimate should 136
Appendix B not exceed the background food exposure from the multi-media assessment by more than 20% of the residual (TDI-EDI). Where: T AG = T R + I p + I b + I m [13] T AG = estimate of total contaminant intake from food produced on a remediated agricultural site and off-site Residential The calculation of exposure by local produce consumption (food check) for a residential setting has to be added to the generic guidelines. Guidelines taking into account contribution of local food produce to the total intake of contaminant will appear in the assessment document available for each substance studied by the Subcommittee. Equations (state their numbers) are slightly altered for the residential scenario. The Subcommittee has proposed that 10% of garden produce will be grown on-site, and no meat or milk will be of local origin. Therefore, Equation 12 is modified under these conditions to remove only the background exposure to produce, and becomes: T R = T F - I BP [14] The new estimate of contaminant intake from food sources at a residential site will be equal to the addition of the estimated intake from on-site and off-site produce to the remainder (T R ). Where: T RES = T R + I p [15] T RES = estimate of total contaminant intake from food produced on a remediated residential site and off-site If T RES is greater than the background food exposure by more than 20% of the residual (TDI-EDI), the Subcommittee is recommending that the contaminant exposure from backyard produce be evaluated on a site-specific basis, as the percentage of home grown produce is highly variable. 4.2 Carcinogens 137
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A Protocol for the Derivation of En
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Readers' Comments The Canadian Coun
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Overview In response to growing pub
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mechanisms for migration of soil co
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procédures d'élaboration des reco
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• être absorbés par les plantes
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PART B Section 1 Derivation of Envi
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Section 2 Investigation of Contamin
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PART D Section 1 Derivation of the
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List of Figures 1 National Framewor
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Acknowledgements The CCME Subcommit
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Document Organization This document
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Bioaccumulation: The process by whi
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Denitrification: The gaseous loss o
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GGG Guidelines: Generic numerical l
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Mutagenicity: The ability of a chem
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xxxiv human exposure. Risk estimati
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Soil: Normally defined as the uncon
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VVV Volatilization: The chemical pr
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Section 1 The National Contaminated
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Part A, Section 1 6
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Part A, Section 1 1.2.2.2 Remediati
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Part A, Section 1 of, and establish
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Part A, Section 2 Section 2 Nationa
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Part A, Section 2 2.2 Limitations o
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Part A, Section 2 17
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Part A, Section 2 Industrial: where
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• the sensitivity of the test con
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Part A, Section 3 23
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Section 2 Level of Ecological Prote
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Part B, Section 2 2.3 Endpoint Defi
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Part B, Section 2 There is consiste
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Part B, Section 4 Section 4 Potenti
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Part B, Section 4 Figure 4 Simplifi
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Figure 5 Key Receptors and Exposure
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Part B, Section 5 grazing herbivore
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Part B, Section 5 5.2.2 Maintenance
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Part B, Section 5 5.4 Industrial La
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Section 6 Uncertainty in Guidelines
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Section 7 Guidelines Derivation Pro
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Part B, Section 7 (SQG SG = soil qu
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Part B, Section 7 a soil quality gu
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Where: NPER = no to Potential Effec
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Part B, Section 7 7.5.2.1 Using Mic
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Part B, Section 7 data, the Median
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Part B, Section 7 EC 50 LC 50 UF =
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Where: ERL = Effects Range Low, ECL
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Part B, Section 7 Where: EC 50 = Me
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Part B, Section 7 Where the ECL lie
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Part B, Section 7 4. Fewer than thr
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Part B, Section 7 An uncertainty fa
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Part B, Section 7 Therefore, BCF =
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Part B, Section 7 ingestion (SQG I
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Section 8 Derivation of the Final E
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Part C, Section 1 65
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Part C, Section 1 various sites acr
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Part C, Section 1 Geographical unce
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preferred for the assessment, but s
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Part C, Section 2 Environmental con
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Part C, Section 2 extent, the steep
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Section 3 Exposure to Contaminants
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Part C, Section 4 Section 4 Exposur
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Part C, Section 4 within limits, th
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Part C, Section 4 Figure 19 Concept
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Part C, Section 4 4.2 Absorption of
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Part C, Section 4 In the case of no
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Residential/Parkland Land Use Sensi
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Part C, Section 4 Commercial Land U
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Page 155 and 156: Part C, Section 5 these data are av
Page 157 and 158: Part C, Section 5 GEOCHEM (Mattigod
Page 159 and 160: Part C, Section 5 • K oc (sorptio
Page 161 and 162: Part C, Section 5 5.3.3 Evaluation
Page 163 and 164: Part C, Section 5 parameters, and s
Page 165 and 166: Section 6 Derivation of the Final H
Page 167 and 168: Part D, Section 1 101
Page 169 and 170: does not apply to the commercial or
Page 171: Part D, Section 1 105
Page 174 and 175: References Aldenberg, T., and W. Sl
Page 176 and 177: References -dwelling Organisms", Ab
Page 178 and 179: References 112
Page 180 and 181: References Hill, E.F., and D.J. Hof
Page 182 and 183: References Paustenbach, D.J., (1989
Page 184 and 185: References Summers, J.K., H.T. Wils
Page 186 and 187: Appendix A Appendix A Nutrient and
Page 188 and 189: Appendix A Figure A.1 Simplified Te
Page 190 and 191: Appendix A 4.1 Agricultural and Res
Page 192 and 193: Appendix A References Bååth, E.,
Page 194 and 195: The Subcommittee considers that exp
Page 196 and 197: Appendix B P l P r BW = percent pro
Page 198 and 199: Appendix B Substituting equation 5
Page 200 and 201: Appendix B Where no MRL exists, the
Page 204 and 205: Appendix B For carcinogens, total i
Page 206 and 207: Appendix C Rearranging [2] and subs
Page 208 and 209: Appendix C References Chiou, C.T.,
Page 210 and 211: Appendix D uncontaminated organic m
Page 212 and 213: Appendix D R = recharge, m/yr A = a
Page 214 and 215: Appendix D 2.3.3 Hydraulic Gradient
Page 216 and 217: Appendix D 2.3.5 Site Length The le
Page 218 and 219: Appendix D Table D.2 Lower Quantile
Page 220 and 221: Figure D.2 Conceptual Model of Dilu
Page 222: Appendix D Figure D.3 Recharge Esti
Page 225 and 226: Appendix D 159
Page 227 and 228: Smith, A.E., P.B. Ryan, and J.S. Ev
Page 229 and 230: Appendix E C K L V is the climate f
Page 231 and 232: Appendix E contaminant concentratio
Page 233 and 234: Appendix F Appendix F Multi-media E
Page 235 and 236: Appendix F example, fish BCFs are t
Page 237 and 238: Appendix G 2.2 Contaminant Vapour T
Page 239 and 240: Appendix G Table G.1 Equations Used
Page 241 and 242: Appendix G at the outset that, rath
Page 243 and 244: Appendix G 4.4 Application of the R
Page 245 and 246: Average outdoor summer temperature
Page 247: Appendix G References Alberta Envir
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