Ontwikkeling van sedimenttoxiciteits-toetsen. II De chronische toxiciteit van sediment gecontamineerd met chloorpyrifos voor Daphnia magna
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Series/Report no.
RIVM Rapport 719102012Type
ReportLanguage
nl
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Ontwikkeling van sedimenttoxiciteits-toetsen. II De chronische toxiciteit van sediment gecontamineerd met chloorpyrifos voor Daphnia magnaTranslated Title
Development of sediment toxicity tests. II The prolonged toxicity of chlorpyriphos contaminated sediment to the waterflea Daphnia magnaPubliekssamenvatting
This report presents several experiments carried out in a study to develop standardized sediment toxicity tests. The prolonged toxicity of chlorpyriphos (CPF) to the waterflea Daphnia magna was determined in a sediment/water-system, an elutriate and in Dutch Standard Water. The toxicity of CPF could be established in the elutriate and in Dutch Standard Water. NOEC values were 0,32 mg/kg dw and 0,032 mug/l respectively (concentrations as nominal values). The results in the sediment/water-system were unreliable due to low reproduction and growth of the daphnids during the 21 day exposure period.Collections