Combining passive sampling and toxicity testing for evaluation of mixtures of polar organic chemicals in sewage treatment plant effluent
Muller, Renee, Tang, Janet Y. M., Thier, Ricarda, & Mueller, Jochen F. (2007) Combining passive sampling and toxicity testing for evaluation of mixtures of polar organic chemicals in sewage treatment plant effluent. Journal of Environmental Monitoring, 9(1), pp. 105-109.
Effluent from sewage treatment plants has been associated with a range of pollutant effects. Depending on the influent composition and treatment processes the effluent may contain a myriad of different chemicals which makes monitoring very complex. In this study we aimed to monitor relatively polar organic pollutant mixtures using a combination of passive sampling techniques and a set of biochemistry based assays covering acute bacterial toxicity (Microtox™), phytotoxicity (Max-I-PAM assay) and genotoxicity (umuC assay). The study showed that all of the assays were able to detect effects in the samples and allowed a comparison of the two plants as well as a comparison between the two sampling periods. Distinct improvements in water quality were observed in one of the plants as result of an upgrade to a UV disinfection system, which improved from 24× sample enrichment required to induce a 50% response in the Microtox™ assay to 84×, from 30× sample enrichment to induce a 50% reduction in photosynthetic yield to 125×, and the genotoxicity observed in the first sampling period was eliminated. Thus we propose that biochemical assay techniques in combination with time integrated passive sampling can substantially contribute to the monitoring of polar organic toxicants in STP effluents.
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|Item Type:||Journal Article|
|Keywords:||organic compound, article, bacterial strain, biochemistry, cytotoxicity, disinfection, effluent, environmental monitoring, genotoxicity, nonhuman, photosynthesis, phototoxicity, priority journal, sewage effluent, sewage treatment, sewage treatment plant, toxicity testing, ultraviolet radiation, water analysis, water pollutant, water pollution, water quality, water sampling, Bacteria, Mutagenicity Tests, Organic Chemicals, Plants, Reproducibility of Results, Sewage, Toxicity Tests, Bacteria (microorganisms)|
|Divisions:||Current > Schools > School of Clinical Sciences
Current > QUT Faculties and Divisions > Faculty of Health
|Copyright Owner:||Copyright The Royal Society of Chemistry.|
|Deposited On:||09 Oct 2014 03:27|
|Last Modified:||10 Oct 2014 00:24|
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