Rouvalis Angela, Karadima Constantina, Zioris Ioannis V, Sakkas Vasilios A, Albanis Triantafyllos, Iliopoulou-Georgudaki Joan
Unit of Environmental Management, Pollution and Ecotoxicology, Department of Biology, Section of Animal Biology, University of Patras, Rio 26500, Patras, Greece.
Ecotoxicol Environ Saf. 2009 Mar;72(3):828-33. doi: 10.1016/j.ecoenv.2008.09.016. Epub 2008 Nov 7.
Rainwater samples from four municipalities located in Achaia Prefecture, Greece, were collected from March to September 2006. The toxic potency of pollutants present in 36 rainwater samples was tested using Daphnia pulex. The pesticide determination was conducted with GC-MS. Only phosphamidon was detected, which appeared in 52% and 13% of the rural and urban areas, respectively. The toxicity of rainwater was determined in 52% and 46.7% of the rural and urban area samples, respectively. Chemical analyses showed that in rural areas, the PO(4)(3-) ions had higher concentrations than in urban areas. On the other hand, the SO(4)(2-), NO(-)(3), and NO(-)(2) anions are more highly concentrated in urban areas. Correlation analysis proved that the toxicity of the rainwater samples is moderate, affected by the presence of the insecticide only in the rural areas. The results indicated that toxicity can be directly assessed via bioassays, even when unknown pollutants are present.
2006年3月至9月期间，从希腊阿哈伊亚州的四个城市采集了雨水样本。使用大型溞对36个雨水样本中存在的污染物的毒性强度进行了测试。采用气相色谱-质谱联用仪进行农药测定。仅检测到了磷胺，其分别出现在52%的农村地区和13%的城市地区。分别在52%的农村地区样本和46.7%的城市地区样本中测定了雨水的毒性。化学分析表明，农村地区的PO(4)(3-)离子浓度高于城市地区。另一方面，SO(4)(2-)、NO(-)(3)和NO(-)(2)阴离子在城市地区的浓度更高。相关性分析证明，雨水样本的毒性为中等程度，仅在农村地区受杀虫剂存在的影响。结果表明，即使存在未知污染物，也可以通过生物测定法直接评估毒性。
