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Implications of geographic variability on Comparative Toxicity Potentials of Cu, Ni and Zn in freshwaters of Canadian ecoregions.
Chemosphere. 2011 Jan; 82(2):268-77.C

Abstract

Current methods of estimating potential environmental impacts of metals in hazard and Life Cycle Impact Assessment (LCIA) do not consider differences in chemistry and landscape properties between geographic sites. Here, we developed and applied a model for regional aquatic impact characterization of metals using an updated method for estimating environmental fate factor (FF), bioavailability factor (BF) and aquatic ecotoxicity factor (EF). We applied the model to analyze differences in Comparative Toxicity Potentials (CTPs) of Cu, Ni and Zn for 24 Canadian ecoregions. The combined impacts of regional variability in ambient chemistry (in particular DOC, pH and hardness) and landscape properties (water residence time) can change the CTPs of these metals for freshwater by up to three orders of magnitude and change the relative ranking of metal hazard between ecoregions. Variation among Canadian freshwater chemistries and landscape characteristics influence the FFs within two orders of magnitude, BFs within two orders of magnitude for Ni and Zn and four orders of magnitude for Cu, and EFs within one order of magnitude. Sensitivity of metal FFs to environmental parameters alone spans three orders of magnitude when a constant water chemistry was used for all ecoregions. These results indicate that application of regionalised metal CTPs can have a significant influence in the analysis of ecotoxicological impacts in the life cycle assessment of products and processes.

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Authors+Show Affiliations

Gandhi N
Department of Chemical Engineering and Applied Chemistry, University of Toronto, Toronto, Canada.
Huijbregts MA
No affiliation info available
Meent Dv
No affiliation info available
Peijnenburg WJ
No affiliation info available
Guinée J
No affiliation info available
Diamond ML
No affiliation info available

MeSH

CanadaCopperEnvironmental MonitoringFresh WaterModels, ChemicalNickelWater Pollutants, ChemicalZinc

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

20934738

Citation

Gandhi, Nilima, et al. "Implications of Geographic Variability On Comparative Toxicity Potentials of Cu, Ni and Zn in Freshwaters of Canadian Ecoregions." Chemosphere, vol. 82, no. 2, 2011, pp. 268-77.
Gandhi N, Huijbregts MA, Meent Dv, et al. Implications of geographic variability on Comparative Toxicity Potentials of Cu, Ni and Zn in freshwaters of Canadian ecoregions. Chemosphere. 2011;82(2):268-77.
Gandhi, N., Huijbregts, M. A., Meent, D. v., Peijnenburg, W. J., Guinée, J., & Diamond, M. L. (2011). Implications of geographic variability on Comparative Toxicity Potentials of Cu, Ni and Zn in freshwaters of Canadian ecoregions. Chemosphere, 82(2), 268-77. https://doi.org/10.1016/j.chemosphere.2010.09.046
Gandhi N, et al. Implications of Geographic Variability On Comparative Toxicity Potentials of Cu, Ni and Zn in Freshwaters of Canadian Ecoregions. Chemosphere. 2011;82(2):268-77. PubMed PMID: 20934738.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Implications of geographic variability on Comparative Toxicity Potentials of Cu, Ni and Zn in freshwaters of Canadian ecoregions. AU - Gandhi,Nilima, AU - Huijbregts,Mark A J, AU - Meent,Dik van de, AU - Peijnenburg,Willie J G M, AU - Guinée,Jeroen, AU - Diamond,Miriam L, Y1 - 2010/10/08/ PY - 2010/04/14/received PY - 2010/09/14/revised PY - 2010/09/15/accepted PY - 2010/10/12/entrez PY - 2010/10/12/pubmed PY - 2011/2/11/medline SP - 268 EP - 77 JF - Chemosphere JO - Chemosphere VL - 82 IS - 2 N2 - Current methods of estimating potential environmental impacts of metals in hazard and Life Cycle Impact Assessment (LCIA) do not consider differences in chemistry and landscape properties between geographic sites. Here, we developed and applied a model for regional aquatic impact characterization of metals using an updated method for estimating environmental fate factor (FF), bioavailability factor (BF) and aquatic ecotoxicity factor (EF). We applied the model to analyze differences in Comparative Toxicity Potentials (CTPs) of Cu, Ni and Zn for 24 Canadian ecoregions. The combined impacts of regional variability in ambient chemistry (in particular DOC, pH and hardness) and landscape properties (water residence time) can change the CTPs of these metals for freshwater by up to three orders of magnitude and change the relative ranking of metal hazard between ecoregions. Variation among Canadian freshwater chemistries and landscape characteristics influence the FFs within two orders of magnitude, BFs within two orders of magnitude for Ni and Zn and four orders of magnitude for Cu, and EFs within one order of magnitude. Sensitivity of metal FFs to environmental parameters alone spans three orders of magnitude when a constant water chemistry was used for all ecoregions. These results indicate that application of regionalised metal CTPs can have a significant influence in the analysis of ecotoxicological impacts in the life cycle assessment of products and processes. SN - 1879-1298 UR - https://www.unboundmedicine.com/medline/citation/20934738/Implications_of_geographic_variability_on_Comparative_Toxicity_Potentials_of_Cu_Ni_and_Zn_in_freshwaters_of_Canadian_ecoregions_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0045-6535(10)01061-1 DB - PRIME DP - Unbound Medicine ER -