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

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xxxiv human exposure. Risk estimation examines the severity, extent, and distribution of the effects of an
event or activity and leads to a specific numerical point estimate or a range of values. Risk management: The selection and implementation of a strategy for control of a risk, followed by monitoring and evaluation of the effectiveness of that strategy. The decision to select a particular strategy may involve considering the information obtained during risk assessment. Implementation typically involves a commitment of resources and communication with affected parties. Monitoring and evaluation may include environmental sampling, post-remedial surveillance, prospective epidemiology, and analysis of new health risk information, as well as ensuring compliance. Risk perception: An intuitive judgement about the nature and magnitude of a risk. Perceptions of risk involve the judgements people make when they characterize and evaluate hazardous substances, activities, and situations. Runoff: The portion of the total precipitation on an area that flows into stream channels. Surface runoff does not enter the soil. Groundwater runoff or seepage flow enters the soil before reaching the stream. SSS Safety factor: A unitless numerical value applied to a reference toxicological value (e.g., EC 50 ) to account for the uncertainty in the estimate of a final soil quality guideline. Uncertainty factors may be applied, for example, when there is a need for extrapolation to long-term values from short-term data, extrapolation from laboratory to field conditions, or to account for inter- or intra-specific variation between individual test organisms and species. Sand: A soil particle between 0.05 and 2 mm in diameter. Short-term exposure: A short-term exposure to a contaminant in a medium and usually severe enough to rapidly induce an effect. Often referred to as an acute exposure. Absolute definitions for short-term exposure vary from study to study. Silt: A soil particle between 0.002 and 0.05 mm in equivalent diameter. xv
Page 1 and 2: A Protocol for the Derivation of En
Page 3 and 4: Readers' Comments The Canadian Coun
Page 5 and 6: Overview In response to growing pub
Page 7 and 8: mechanisms for migration of soil co
Page 9 and 10: procédures d'élaboration des reco
Page 11 and 12: • être absorbés par les plantes
Page 13 and 14: PART B Section 1 Derivation of Envi
Page 16 and 17: Section 2 Investigation of Contamin
Page 18 and 19: PART D Section 1 Derivation of the
Page 20 and 21: List of Figures 1 National Framewor
Page 22 and 23: Acknowledgements The CCME Subcommit
Page 24 and 25: Document Organization This document
Page 26 and 27: Bioaccumulation: The process by whi
Page 28 and 29: Denitrification: The gaseous loss o
Page 30 and 31: GGG Guidelines: Generic numerical l
Page 32 and 33: Mutagenicity: The ability of a chem
Page 36 and 37: Soil: Normally defined as the uncon
Page 38 and 39: VVV Volatilization: The chemical pr
Page 41 and 42: Section 1 The National Contaminated
Page 44 and 45: Part A, Section 1 6
Page 46 and 47: Part A, Section 1 1.2.2.2 Remediati
Page 48 and 49: Part A, Section 1 of, and establish
Page 50 and 51: Part A, Section 2 Section 2 Nationa
Page 53 and 54: Part A, Section 2 2.2 Limitations o
Page 55 and 56: Part A, Section 2 17
Page 57 and 58: Part A, Section 2 Industrial: where
Page 59 and 60: • the sensitivity of the test con
Page 61: Part A, Section 3 23
Page 64 and 65: Section 2 Level of Ecological Prote
Page 66 and 67: Part B, Section 2 2.3 Endpoint Defi
Page 68 and 69: Part B, Section 2 There is consiste
Page 70 and 71: Part B, Section 4 Section 4 Potenti
Page 72: Part B, Section 4 Figure 4 Simplifi
Page 75 and 76: Figure 5 Key Receptors and Exposure
Page 77 and 78: Part B, Section 5 grazing herbivore
Page 80 and 81: Part B, Section 5 5.2.2 Maintenance
Page 82 and 83: Part B, Section 5 5.4 Industrial La
Page 84 and 85:
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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Page 129 and 130:
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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Page 137 and 138:
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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Part C, Section 4 Industrial Land U
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Part C, Section 5 these data are av
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Part C, Section 5 GEOCHEM (Mattigod
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Part C, Section 5 • K oc (sorptio
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Part C, Section 5 5.3.3 Evaluation
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Part C, Section 5 parameters, and s
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Section 6 Derivation of the Final H
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Part D, Section 1 101
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does not apply to the commercial or
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Part D, Section 1 105
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References Aldenberg, T., and W. Sl
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References -dwelling Organisms", Ab
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References 112
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References Hill, E.F., and D.J. Hof
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References Paustenbach, D.J., (1989
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References Summers, J.K., H.T. Wils
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Appendix A Appendix A Nutrient and
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Appendix A Figure A.1 Simplified Te
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Appendix A 4.1 Agricultural and Res
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Appendix A References Bååth, E.,
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The Subcommittee considers that exp
Page 196 and 197:
Appendix B P l P r BW = percent pro
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Appendix B Substituting equation 5
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Appendix B Where no MRL exists, the
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Appendix B Then, the remainder (T R
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Appendix B For carcinogens, total i
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Appendix C Rearranging [2] and subs
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Appendix C References Chiou, C.T.,
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Appendix D uncontaminated organic m
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Appendix D R = recharge, m/yr A = a
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Appendix D 2.3.3 Hydraulic Gradient
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Appendix D 2.3.5 Site Length The le
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Appendix D Table D.2 Lower Quantile
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Figure D.2 Conceptual Model of Dilu
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Appendix D Figure D.3 Recharge Esti
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Appendix D 159
Page 227 and 228:
Smith, A.E., P.B. Ryan, and J.S. Ev
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Appendix E C K L V is the climate f
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Appendix E contaminant concentratio
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Appendix F Appendix F Multi-media E
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Appendix F example, fish BCFs are t
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Appendix G 2.2 Contaminant Vapour T
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Appendix G Table G.1 Equations Used
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Appendix G at the outset that, rath
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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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