...
首页> 外文期刊>Science of the total environment >Effects of skin removal on contaminant levels in salmon and trout filets
【24h】

Effects of skin removal on contaminant levels in salmon and trout filets

机译:去皮对鲑鱼和鳟鱼鱼片中污染物含量的影响

获取原文
获取原文并翻译 | 示例
           

摘要

Skin removal is a generally accepted method to reduce exposure to contaminants through fish consumption. However, inconsistent results from studies on the effectiveness of this method suggest influence of other factors such as characteristics of contaminants and fish species. This study investigated the effects of skin removal on the lipid contents and concentrations of total mercury, a-chlordane, hexachlorobenzene, mirex, octachlorosytrene, polychlorinated biphenyls (PCB), dichlorodiphenyltrichloroethane (DDT), dichlorodiphenyldichloroethane (DDD), and dichlorodiphenyldichloroethylene (DDE). Four fish species namely brown trout (Salmo trutta), Chinook salmon (Oncorhynchus tschawytscha), coho salmon (Oncorhynchus kisutch) and rainbow trout (Oncorhynchus mykiss) sampled from the Credit River, Ontario, Canada were considered. Concentrations of all the lipophilic organic contaminants decreased significantly (median 17-37%) after removing skins from filets of brown trout, Chinook salmon and coho salmon, but not of rainbow trout. In contrast, the concentrations of mercury tended to be either similar or marginally higher after removing skins from filets of all four species; however, the amount of mercury would have likely declined or remained unchanged. Overall, removal of skin before consuming a fish filet is recommended to reduce exposure to contaminants widely found in Ontario fish.
机译:去除皮肤是一种普遍接受的方法,可以通过食用鱼来减少污染物的暴露。但是,有关该方法有效性的研究结果不一致,表明其他因素的影响,例如污染物和鱼类的特征。这项研究调查了皮肤去除对总汞,α-氯丹,六氯苯,灭蚁灵,八氯氰,多氯联苯(PCB),二氯二苯基三氯乙烷(DDT),二氯二苯基二氯乙烷(DDD)和二氯二苯基二氯乙烯(DDE)的脂质含量和浓度的影响。考虑了四种鱼类,分别是从加拿大安大略省信贷河采样的褐鳟(Salmo trutta),奇努克鲑(Oncorhynchus tschawytscha),银鲑(Oncorhynchus kisutch)和虹鳟(Oncorhynchus mykiss)。从褐鳟鱼,奇努克鲑鱼和银大麻哈鱼的鱼片中除去表皮后,所有亲脂性有机污染物的浓度均显着下降(中位数为17-37%),但虹鳟鱼则没有。相反,从所有四个种类的鱼片上除去皮肤后,汞的浓度趋向于相似或略高。但是,汞含量可能会下降或保持不变。总体而言,建议在食用鱼片之前去除皮肤,以减少与安大略省鱼类普遍存在的污染物的接触。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号