Determination of pesticides and toxic potency of rainwater samples in western Greece

详细信息    查看全文

• 作者：Angela Rouvalis ; Constantina Karadima ; Ioannis V. Zioris ; Vasilios A. Sakkas ; Triantafyllos Albanis ; Joan Iliopoulou-Georgudaki
• 关键词：Rainwater ; Daphnia pulex ; Toxicity ; Pesticides
• 刊名：Ecotoxicology and Environmental Safety
• 出版年：2009
• 出版时间：March 2009
• 年：2009
• 卷：72
• 期：3
• 页码：828-833
• 全文大小：227 K

文摘

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 PO₄³⁻ ions had higher concentrations than in urban areas. On the other hand, the SO₄²⁻, 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.