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Article: Comparison of tropical and temperate freshwater animal species' acute sensitivities to chemicals: implications for deriving safe extrapolation factors.

TitleComparison of tropical and temperate freshwater animal species' acute sensitivities to chemicals: implications for deriving safe extrapolation factors.
Authors
Issue Date2007
PublisherSociety of Environmental Toxicology and Chemistry. The Journal's web site is located at http://setac.allenpress.com/entconline/?request=index-html
Citation
Integrated Environmental Assessment And Management, 2007, v. 3 n. 1, p. 49-67 How to Cite?
AbstractToxicity data for tropical species are often lacking for ecological risk assessment. Consequently, tropical and subtropical countries use water quality criteria (WQC) derived from temperate species (e.g., United States, Canada, or Europe) to assess ecological risks in their aquatic systems, leaving an unknown margin of uncertainty. To address this issue, we use species sensitivity distributions of freshwater animal species to determine whether temperate datasets are adequately protective of tropical species assemblages for 18 chemical substances. The results indicate that the relative sensitivities of tropical and temperate species are noticeably different for some of these chemicals. For most metals, temperate species tend to be more sensitive than their tropical counterparts. However, for un-ionized ammonia, phenol, and some pesticides (e.g., chlorpyrifos), tropical species are probably more sensitive. On the basis of the results from objective comparisons of the ratio between temperate and tropical hazardous concentration values for 10% of species, or the 90% protection level, we recommend that an extrapolation factor of 10 should be applied when such surrogate temperate WQCs are used for tropical or subtropical regions and a priori knowledge on the sensitivity of tropical species is very limited or not available.
Persistent Identifierhttp://hdl.handle.net/10722/73352
ISSN
2015 Impact Factor: 1.53
2015 SCImago Journal Rankings: 0.827

 

DC FieldValueLanguage
dc.contributor.authorKwok, KWen_HK
dc.contributor.authorLeung, KMen_HK
dc.contributor.authorLui, GSen_HK
dc.contributor.authorChu, SVen_HK
dc.contributor.authorLam, PKen_HK
dc.contributor.authorMorritt, Den_HK
dc.contributor.authorMaltby, Len_HK
dc.contributor.authorBrock, TCen_HK
dc.contributor.authorVan den Brink, PJen_HK
dc.contributor.authorWarne, MSen_HK
dc.contributor.authorCrane, Men_HK
dc.date.accessioned2010-09-06T06:50:28Z-
dc.date.available2010-09-06T06:50:28Z-
dc.date.issued2007en_HK
dc.identifier.citationIntegrated Environmental Assessment And Management, 2007, v. 3 n. 1, p. 49-67en_HK
dc.identifier.issn1551-3777en_HK
dc.identifier.urihttp://hdl.handle.net/10722/73352-
dc.description.abstractToxicity data for tropical species are often lacking for ecological risk assessment. Consequently, tropical and subtropical countries use water quality criteria (WQC) derived from temperate species (e.g., United States, Canada, or Europe) to assess ecological risks in their aquatic systems, leaving an unknown margin of uncertainty. To address this issue, we use species sensitivity distributions of freshwater animal species to determine whether temperate datasets are adequately protective of tropical species assemblages for 18 chemical substances. The results indicate that the relative sensitivities of tropical and temperate species are noticeably different for some of these chemicals. For most metals, temperate species tend to be more sensitive than their tropical counterparts. However, for un-ionized ammonia, phenol, and some pesticides (e.g., chlorpyrifos), tropical species are probably more sensitive. On the basis of the results from objective comparisons of the ratio between temperate and tropical hazardous concentration values for 10% of species, or the 90% protection level, we recommend that an extrapolation factor of 10 should be applied when such surrogate temperate WQCs are used for tropical or subtropical regions and a priori knowledge on the sensitivity of tropical species is very limited or not available.en_HK
dc.languageengen_HK
dc.publisherSociety of Environmental Toxicology and Chemistry. The Journal's web site is located at http://setac.allenpress.com/entconline/?request=index-htmlen_HK
dc.relation.ispartofIntegrated environmental assessment and managementen_HK
dc.titleComparison of tropical and temperate freshwater animal species' acute sensitivities to chemicals: implications for deriving safe extrapolation factors.en_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=1551-3777&volume=3&spage=49&epage=67&date=2007&atitle=Comparison+of+tropical+and+temperate+freshwater+animal+species%27+acute+sensitivity+to+chemicals:+implication+for+deriving+safe+extrapolation+factoren_HK
dc.identifier.emailLeung, KM: kmyleung@hku.hken_HK
dc.identifier.authorityLeung, KM=rp00733en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1897/1551-3793(2007)3[49:COTATF]2.0.CO;2en_HK
dc.identifier.pmid17283595-
dc.identifier.scopuseid_2-s2.0-33847717466en_HK
dc.identifier.hkuros125959en_HK
dc.identifier.volume3en_HK
dc.identifier.issue1en_HK
dc.identifier.spage49en_HK
dc.identifier.epage67en_HK
dc.publisher.placeUnited Statesen_HK
dc.identifier.scopusauthoridKwok, KW=19337480200en_HK
dc.identifier.scopusauthoridLeung, KM=7401860738en_HK
dc.identifier.scopusauthoridLui, GS=16031854100en_HK
dc.identifier.scopusauthoridChu, SV=11140610700en_HK
dc.identifier.scopusauthoridLam, PK=7202365776en_HK
dc.identifier.scopusauthoridMorritt, D=7003560499en_HK
dc.identifier.scopusauthoridMaltby, L=7004119309en_HK
dc.identifier.scopusauthoridBrock, TC=7102984274en_HK
dc.identifier.scopusauthoridVan den Brink, PJ=36572835100en_HK
dc.identifier.scopusauthoridWarne, MS=7004330838en_HK
dc.identifier.scopusauthoridCrane, M=7202466944en_HK

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