Seasonal variation of hydrophobic organic contaminant concentrations in the water-column of the Seine Estuary and their transfer to a planktonic species Eurytemora affinis (Calanoïd, copepod). Part 2: Alkylphenol-polyethoxylates.
The occurrence and fate of alkylphenols in various matrices of the Seine River Estuary were studied. Nonylylphenols (NP) and nonylphenol polethoxylates (NPEs) were monitored in surface dissolved water, suspended particulate matter (SPM) and in a copepod, Eurytemora affinis from November 2002 to January 2004. NPs, nonylphenol mono and diethoxylates (NP1EO, NP2EO) and nonylphenol-ethoxy-acetic-acid (NP1EC) were detected and measured in all dissolved water and SPM samples whereas nonylphenoxy-acetic-acid (NP2EC) was only found sporadically in dissolved water samples. Seasonal variation of total concentrations of NPs and NPEs, ranging, respectively from 399 to 2214ngl(-1) and from 405 to 9636ngg(-1), were measured in the dissolved water and in the SPM. Significant decreases were observed in the water-column during the maximum biological activity periods in spring and autumn. Furthermore, increasing levels were observed in the SPM during the winter period. High concentrations of NP1EO and NP were detected in all copepod samples, ranging from 3423 to 6406ngg(-1). This study is the first to report high levels of endocrine disruptors in estuarine copepods.
Université Bordeaux 1, ISM-UMR 5255 CNRS, Laboratoire de Physico-Toxico-Chimie de l'Environnement (LPTC), 351 Cours de la Libération, 33405 Talence, France.
K
K
Cailleaud
J
J
Forget-Leray
S
S
Souissi
S
S
Lardy
S
S
Augagneur
H
H
Budzinski
D000818:Animals; D002851:Chromatography, High Pressure Liquid; D033342:Copepoda / Q000254:growth & development*; D004784:Environmental Monitoring / Q000379:methods*; D005026:Ethylene Glycols / Q000032:analysis*; D005602:France; D057927:Hydrophobic and Hydrophilic Interactions; D010636:Phenols / Q000032:analysis*; D045483:Rivers / Q000737:chemistry*; D012621:Seasons; D052616:Solid Phase Extraction; D014874:Water Pollutants, Chemical / Q000032:analysis*
D005026:Ethylene Glycols; D010636:Phenols; D014874:Water Pollutants, Chemical; C021754:terics; C025256:nonylphenol