Ontwikkeling van sedimenttoxiciteits-toetsen. II De chronische toxiciteit van sediment gecontamineerd met chloorpyrifos voor Daphnia magna 719102012

Ontwikkeling van sedimenttoxiciteits-toetsen. II De chronische toxiciteit van sediment gecontamineerd met chloorpyrifos voor Daphnia magna

[ [Development of sediment toxicity tests. II The prolonged toxicity of chlorpyriphos contaminated sediment to the waterflea Daphnia magna.] ]

Roghair CJ, Wolters MAH, Huijs MPA

36 p in Dutch 1993

RIVM Rapport 719102012

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Toon Nederlands

English Abstract
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.

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