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Elucidation of real situation of environment, diet and human contamination by PBDEs in urban area of Japan

日本城市地区环境、饮食和人体PBDEs污染的真实状况阐明

基本信息

批准号：
12670371
负责人：
OHTA Souichi
金额：
$ 1.92万
依托单位：
Setsunan University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (C)
财政年份：
2000
资助国家：
日本
起止时间：
2000 至 2001
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-12670371/
关键词：
PBDEs flame retardants contamination mother's milk fish intake real situation of contamination accumulation levels photo de composition 胎児毒性

项目摘要

At present, little is known about the occurrence of polybrominated diphenyl ethers (PBDEs) in fish and food products sold in Japan. To investigate whether human exposure to PBDEs through the diet is significant, the concentrations of PBDEs were determined in fish and in meat and vegetables sold in two food markets in the city of Hirakita, Osaka prefecture. The concentrations of PBDEs in the breast milk of 12 primiparae nursing women at one month after delivery also were determined to ascertain the relationship between the levels found in the diet and levels in humans. E PBDEs concentrations ranged between 21 and 1,650 pg/g fresh weight in the edible tissues of five species of fish and one shellfish species. The highest concentrations were measured in yellow-fin tuna, followed by short-necked clam, salmon, yellowtail, mackerel and young yellowtail. Interestingly, 」 PBDE concentrations were not statistically significantly different in two cultured mackerel samples from Japan and mackerel collected from northern European waters. E PBDE concentrations in beef, pork and chicken meat (ranging between 6.25 and 63.6 pg/g fresh weight) and hi three different vegetables (ranging between 38.4 and 134 pg/g fresh weight) were significantly lower than the concentrations in fish/ In human milk, 2 PBDE concentrations ranged between 668 and 2,840 pg/g lipid basis, which is comparable to the levels in populations of nursing women reported hi Sweden and elsewhere. There was a strong positive relationship between PBDE concentrations in human milk and dietary intake of fish and shellfish, which was established in the women from responses to a questionaire on food consumption habits. The results of this study of food products commonly consumed in Japan and the levels found in nursing women raises a concern about low level PBDE contamination of fish and other foods intended for human consumption.

目前，关于在日本销售的鱼类和食品中是否存在多溴二苯醚(PBDEs)的情况知之甚少。为了调查人类通过饮食接触多溴二苯醚是否显著，我们测定了大阪府平田市两个食品市场出售的鱼、肉和蔬菜中多溴二苯醚的浓度。还测定了12名初产妇产后1个月母乳中多溴二苯醚的浓度，以确定饮食中的多溴二苯醚含量与人类体内多溴二苯醚含量之间的关系。在五种鱼和一种贝类的可食用组织中，多溴二苯醚的浓度在21至1650 pg/g鲜重之间。黄鳍金枪鱼的浓度最高，紧随其后的是短颈蚌、鲑鱼、黄尾鱼、鲱鱼和幼鱼。有趣的是，“在日本和北欧水域采集的两个养殖鲱鱼样本中，多溴二苯醚浓度在统计学上没有显著差异。牛肉、猪肉和鸡肉(6.25至63.6 pg/g鲜重)和三种不同蔬菜(38.4至134 pg/g鲜重)中的多溴二苯醚浓度显著低于鱼/人奶中的浓度，2多溴二苯醚浓度在668至2,840 pg/g脂肪基础上，与瑞典和其他地方报告的哺乳妇女的水平相当。母乳中的多溴二苯醚浓度与鱼和贝类的饮食摄入量之间有很强的正相关关系，这是通过对一份关于食物消费习惯的问卷的答复在妇女身上建立起来的。这项对日本常见食用食品的研究结果以及在哺乳妇女中发现的含量引起了人们对鱼类和其他供人类食用的食品中低水平多溴二苯醚污染的担忧。