Fate and ecotoxicity of new antifouling compounds in aquatic environments.

水生环境中新型防污化合物的归宿和生态毒性。

基本信息

批准号：
11680530
负责人：
OKAMURA Hideo
金额：
$ 2.11万
依托单位：
Kobe University of Mercantile Marine (2002)Okayama University (1999-2001)
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (C)
财政年份：
1999
资助国家：
日本
起止时间：
1999 至 2002
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-11680530/
关键词：
New antifouling compound ecotoxicity fate aquatic environment degradation persistent Irgarol 1051 Diuron DCMU

项目摘要

The aim of this study was to establish management strategy for the new antifouling compounds alternative to organotins. Compounds used were Irgarol 1051, Diuron, KH 101, Zinc pirithione, Copper Pyrithione, and Sea-Nine 211. Conclusions obtained were as follows :1) Pollution of Japanese aquatic environmentThe highest concentrations of three compounds detected in Japanese ambient waters were as follows ; 0.30 μg/L for Irgarol 1051, 1.9 μg/L for M1, and 3.1 μg/L for Diuron. Three-year survey at two stations indicated the concentrations in higher order as Diuron > Irgarol 1051 > M1, generally.2) Degradation studyMercuric ion could catalyze hydrolysis of Irgarol in water to produce M1. Solar irradiation also degraded Irgarol in water to produce M1. Photodegradation rate of Irgarol was accelerated by natural components in water, suggesting photosensitive degradation with humic substances. The origin of Irgarol, M1, and Diuron detected in water was ascertained to commercial antifouling paints available in Japanese market.3) Ecotoxicity studyEcotoxicity of Irgarol and M1 was evaluated using environmentally relevant organisms such as marine bacteria, microalgae, seaweed, duckweed, zooplankton, and terrestrial plants. The environmental risk of them was assessed with both the ecotoxicological data and residue concentrations. Toxicity of several new antifouling compounds were evaluated using juvenile fish, suspension-cultured fish cells, fertilized egg of sea urchin, and non-target plant species. The toxicity of metal pyrithiones was high to those species tested, especially zinc pyrithione inhibited sea urchin egg development at femtgram per liter. The metal pyrithiones irradiated with UV-A lamp decreased its toxicity to sea urchin, depending on the duration of light treatment. This suggested that metal pyrithiones could be degraded by solar irradiation.

这项研究的目的是建立有机蛋白的新防污化合物的管理策略。使用的化合物是Irgarol 1051，Diuron，KH 101，Pirithione锌，Pyrithione和Sea-Nine 211。获得的结论如下：1）日本水生环境对日本环境的最高浓度污染在日本环境中检测到的三种化合物的最高浓度如下所示； Irgarol 1051的0.30μg/L，M1为1.9μg/L，Diuron为3.1μg/L。在两个站点进行的三年调查表明，较高顺序的浓度为Diuron> Irgarol 1051> M1，通常。2）降解研究二脑液离子可以催化irgarol在水中的水解产生M1。太阳辐照也使Irgarol在水中降解以产生M1。水中的天然成分加速了Irgarol的光降解速率，表明与腐殖质物质相关的降解。使用环境相关的生物（如海洋细菌，微藻，海威德，鸭，烟草，烟火，浮游生物，烟草，烟草，烟草，和threstrank anter和thresteral anters）评估了在水中检测到的Irgarol，M1和Diuron的起源。用生态毒理学数据和居住浓度评估了它们的环境风险。使用青少年鱼，悬浮培养的鱼类细胞，海胆肥料和非目标植物物种评估了几种新的防污化合物的毒性。金属吡啶酮对那些测试的物种的毒性很高，尤其是锌硫二硫代硫二硫抑制了每升femtgram的海胆发育。用UV-A灯照射的金属吡啶家根据光处理的持续时间提高了对海胆的毒性。这表明金属载体可以因太阳照射而降解。