Whole Effluent Risk Estimation for a Small Recipient Watercourse

Whole effluent toxicity is most often considered as a static parameter. However, toxicity might change as degradation processes, especially biodegradation goes by and intermediate products appear. These intermediates can even be more toxic than the original effluent was, posing higher risk to the ec...

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Bibliographic Details
Published inActa biologica Hungarica Vol. 60; no. 3; pp. 293 - 299
Main Authors Refaey, Maha, Kováts, Nóra, Kárpáti, á., Thury, P.
Format Journal Article
LanguageEnglish
Published Cham Springer International Publishing 01.09.2009
Subjects
Aliivibrio fischeri - drug effects
Biodegradation, Environmental
Cell Biology
Ecotoxicology
Life Sciences
Neurobiology
Plant Sciences
Risk Assessment
Temperature
Waste Disposal, Fluid
Water - chemistry
Water Pollutants, Chemical - analysis
Water Pollutants, Chemical - metabolism
Zoology
environmental risk
biodegradation
bioluminescence
ToxAlert
Whole effluent toxicity
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Summary:Whole effluent toxicity is most often considered as a static parameter. However, toxicity might change as degradation processes, especially biodegradation goes by and intermediate products appear. These intermediates can even be more toxic than the original effluent was, posing higher risk to the ecosystem of the recipient water body. In our test series it was assessed how toxicity of a municipal wastewater sample changes during biodegradation taking into consideration different temperature regimes (10, 20 and 30 °C). Results proved our null hypothesis: after the high initial toxicity of the fresh effluent sample toxicity did show a further increase. Biodegradation resulted in toxicity reduction only after an approx. 2 week-period.
ISSN:0236-5383
1588-256X
DOI:10.1556/ABiol.60.2009.3.6