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Comparative chemical sensitivity between marine Australian and Northern Hemisphere ecosystems: Is an uncertainty factor warranted for water‐quality–guideline setting?

Hagen, Tarah and Douglas, Richard (2014) Comparative chemical sensitivity between marine Australian and Northern Hemisphere ecosystems: Is an uncertainty factor warranted for water‐quality–guideline setting? Environmental Toxicology & Chemistry, 33 (5). pp. 1187-1192. [Journal article]

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DOI: 10.1002/etc.2548

Abstract

The lack of Australian species data has pragmatically led to the use of toxicological data from the Northern Hemisphere to develop water-quality guidelines. However, it is unknown whether Australian species and ecosystems are equally as sensitive and if an uncertainty factor is warranted for Australian guideline setting. In the present study, it is hypothesized that an uncertainty factor is not required. This was tested by generating species sensitivity distributions by 2 parametric methods using marine Northern Hemisphere and Australian/New Zealand data. Sufficient acute data were found for only 3 compounds: 4-chlorophenol, phenol, and ammonia. For ammonia and 4-chlorophenol, the 95% species protection levels generated with Australian and Northern Hemisphere data were essentially the same. For phenol, protection levels derived from Australian data were approximately 10-fold higher. Therefore, the derived benchmark concentration from Northern Hemisphere data should be protective. It is tentatively concluded that there is no need for an uncertainty factor when deriving water-quality guidelines for marine Australian ecosystems using Northern Hemisphere data. It is, however, noted that this is based on only 3 compounds.

Item Type:Journal article
Faculties and Schools:Faculty of Life and Health Sciences > School of Geography and Environmental Sciences
Faculty of Life and Health Sciences
ID Code:30394
Deposited By: Dr Richard Douglas
Deposited On:20 Oct 2014 14:53
Last Modified:20 Oct 2014 14:53

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