期刊
ENVIRONMENTAL POLLUTION
卷 159, 期 3, 页码 735-741出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.envpol.2010.11.034
关键词
Biofilms; Mixture; Pesticides; Polar Organic Chemical Integrative Sampler (POCIS)
资金
- French National Office for the Aquatic Environment
- Cemagref's PestExpo Research Program
Polar organic chemical integrative samplers (POCIS) are valuable tools in passive sampling methods for monitoring polar organic pesticides in freshwaters. Pesticides extracted from the environment using such methods can be used to toxicity tests. This study evaluated the acute effects of POCIS extracts on natural phototrophic biofilm communities. Our results demonstrate an effect of POCIS pesticide mixtures on chlorophyll a fluorescence, photosynthetic efficiency and community structure. Nevertheless, the range of biofilm responses differs according to origin of the biofilms tested, revealing spatial variations in the sensitivity of natural communities in the studied stream. Combining passive sampler extracts with community-level toxicity tests offers promising perspectives for ecological risk assessment. (C) 2010 Elsevier Ltd. All rights reserved.
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