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The feasibility of a health risk assessment framework to derive guidelines for oestrogen activity in treated drinking water
Expanded Title:A previous WRC report KV 206/08 proposed a framework to deal with endocrine disrupting chemicals for drinking water in South Africa. The framework suggests a tiered approach to screening and testing of chemicals in the water environment rather than testing for specific target chemicals and recommended the use of a trigger value for oestrogen activity. The aim of the project was to determine the feasibility of such a framework to derive guidelines for treated drinking water. It was necessary to test whether the tools and organisational structures were available if testing revealed results exceeding the trigger value which implies further tiered testing of water samples. It is evident from the study that the proposed South African framework to assess endocrine disrupting activity in water and compare it with a trigger value is feasible. But, if the trigger value is exceeded, the possible cause or source would need to be identified and at this time the necessary capacity might not be available, even to do the first tiered bio-assays. A multidisciplinary team would need to be assembled to look at the possible sources such as industry, agriculture, waste streams etc. and follow-up samples would need to be taken to identify the specific chemicals responsible, before remedial action could be taken.
Date Published:04/02/2010
Document Type:Research Report
Document Subjects:Drinking water - Water supply
Document Keywords:Water Quality
Document Format:Report
Document File Type:pdf
Research Report Type:Standard
WRC Report No:1749/1/09
ISBN No:978-1-77005-921-4
Authors:Genthe B; Steyn M; Aneck-Hahn NH; Van Zijl C; de Jager C
Project No:K5/1749
Originator:WRC
Organizations:CSIR Natural Resources and the Environment Stellenbosch; University of Pretoria
Document Size:2 435 KB
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