播磨灘および大阪湾のイガイ中のノニルフェノール

概要

論文の詳細を見る
Nonylphenol (NP) having an endocrine disrupter effect is used in the form of a poly(oxy ethylene)nonylphenyl ether (NPnEO) as a non-ion surfactant, ethoxy straight chain is decomposed by the microbial degradation in environment, then NPnEO is converted to NP through the action. Consequently it is concerned about the effect of NP on wildlife. Blue Mussel has the tolerance, which is strong in pollution. In this study, seawater and Blue Mussel were collected in Harimanada and Osaka Bay enclosed coastal seas. We investigated the distribution and seasonal movement of NP concentration. The result of the study showed that the concentrations of NP in seawater were gradually increasing from August. Moreover, the concentrations in Blue Mussel were the highest in almost all points in August. These results indicate that the water environment where Blue Mussel lives influenced them. The water temperature of 25℃ demonstrated most efficient filtration capability in August and dissolved oxygen (DO) concentration was low in August and September, so the Blue Mussel took in sea water so much. NP concentration in Blue Mussel was varied in the short term. This was suggested that Blue Mussel could become the important indicator of NP concentration in seawater.
兵庫県立大学の論文
2005-02-28