Cemagref, UR MALY, 3 bis quai Chauveau - CP 220, F-69336 Lyon, France.
Environ Pollut. 2011 Mar;159(3):735-41. doi: 10.1016/j.envpol.2010.11.034. Epub 2010 Dec 22.
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.
极性有机化学整合采样器（POCIS）是监测淡水中极性有机农药的被动采样方法中的有价值工具。使用这种方法从环境中提取的农药可用于毒性测试。本研究评估了 POCIS 提取物对自然光养生物膜群落的急性影响。我们的结果表明，POCIS 农药混合物对叶绿素 a 荧光、光合作用效率和群落结构有影响。然而，生物膜反应的范围因所测试的生物膜的来源而异，这表明在研究溪流中自然群落的敏感性存在空间变化。将被动采样器提取物与群落水平毒性测试相结合，为生态风险评估提供了有前途的前景。
