Evaluation of trophic magnification and ecological risk of persistent toxic substances by integration of bio-geochemistry and numerical analysis

生物地球化学与数值分析相结合评估持久性有毒物质的营养放大和生态风险

• 批准号: 21310043
• 负责人: TAKAHASHI Shin
• 金额: $ 11.81万
• 依托单位: Ehime University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 2009
• 资助国家: 日本
• 起止时间: 2009 至 2011
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-21310043/
• 关键词: 微量化学物質汚染評価; 残留性有機汚染物質; 臭素系難燃剤; 食物連鎖; 重金属; 安定同位体比; 数理モデル; 生物濃縮; 影響評価

We analyzed PCBs, brominated flame retardants(PBDEs and HBCDs) and trace elements accumulated in marine organisms at various trophic levels from open waters around Japan and off-California to evaluate their contamination status, ecological effect and trophic magnification in the food webs. Among the areas surveyed, considerable contamination of HBCDs was found in the Seto-Inland Sea and off-Miyagi. In finless porpoises from the Seto-Inland Sea, concentrations of PCBs in liver trematodeinfected individuals were significantly higher than those in non-infected ones, implying their possible immune depression. Considering the results of carbon and nitrogen isotope analyses and other biological and physicochemical parameters, nutrients cycles and species structures of each food web and isomer specific metabolism/excretion by organisms as well as their trophic levels can be suggested as key factors for the food web magnification.

我们分析了日本周边开放水域和加利福尼亚州外海不同营养级海洋生物中积累的多氯联苯、溴化阻燃剂（PBDE 和 HBCD）和微量元素，以评估它们的污染状况、生态效应和食物网中的营养放大作用。在调查的地区中，濑户内海和宫城县外海发现了相当多的六溴环十二烷污染。在来自濑户内海的江豚中，肝脏吸虫感染个体的多氯联苯浓度显着高于未感染个体，这意味着它们可能存在免疫抑制。考虑到碳和氮同位素分析的结果以及其他生物和物理化学参数，每个食物网的营养循环和物种结构以及生物体的异构体特定代谢/排泄及其营养水平可以建议作为食物网放大的关键因素。

项目成果

An integrated environmental risk assessment framework to define Planetary Boundaries for chemical pollution

确定化学污染地球边界的综合环境风险评估框架

• 发表时间: 2012
• 作者: Handoh;I.C.
• 通讯作者: I.C.

臭素系難燃剤の生物濃縮とヒトのリスク評価

溴化阻燃剂的生物累积性和人体风险评估

• 发表时间: 2011
• 作者: Y.Yawata;K.Toda;E.Setoyama;J.Fukuda;H.Suzuki;H.Uchiyama;N.Nomura;今岡進;寺内真・梶村直子・長里千香子・C.Katsaros・峰雪芳宣・奥田一雄・本村泰三;高橋昭久;磯部友彦
• 通讯作者: 磯部友彦

東シナ海におけるPOPs汚染の現状-2009年調査結果

东海POPs污染现状——2009年调查结果

• 发表时间: 2010
• 作者: Norio Sugiura;Tomoaki Itayama;Norio Iwami;Hideaki Maseda;Kazuya Shimizu;清水潤子
• 通讯作者: 清水潤子

Comparative study on the trophodynamics of polychlorinated biphenyls and brominated flame retardants in biota from Jakarta Bay, Indonesia

印度尼西亚雅加达湾生物群中多氯联苯和溴化阻燃剂营养动力学的比较研究

• 发表时间: 2010
• 作者: Sudaryanto;A.
• 通讯作者: A.

Accumulation of Brominated Flame Retardants in Harbour and Dall's Porpoises from Hokkaido. In Proceedings of Interdisciplinary Studies on Environmental Chemistry Vol.5 Modeling and Analysis of Marine Environmental Problems

溴化阻燃剂在港口和北海道斑纹江豚中的积累。

• 发表时间: 2011
• 作者: 水和哉;星麻里恵;伊藤聡史;間世田英明;岡野邦宏;陳栄志;内海真生;張振亜;杉浦則夫;Ami Saito
• 通讯作者: Ami Saito