Maltby Ella A, Oakes Ken D, Walker Tony R, Williams Jim, Wyeth Russell C
Saint Francis Xavier University, Antigonish, Nova Scotia, Canada.
Cape Breton University, Sydney, Nova Scotia, Canada.
Mar Pollut Bull. 2023 Apr;189:114794. doi: 10.1016/j.marpolbul.2023.114794. Epub 2023 Mar 12.
A baseline survey was conducted in 2018 to characterize contaminants in American lobsters, Homarus americanus in the Northumberland Strait, Canada. Sampling included three age classes of lobsters at sites 4, 20, and 70 km from the Boat Harbour estuary, a historically contaminated site set to undergo remediation. Lobster tissues were measured for metal(loids), methylmercury, polycyclic aromatic hydrocarbons, and polychlorinated dibenzo-p-dioxins and polychlorinated dibenzo-p-furans. Contaminant concentrations were generally below the guidelines set by the Canadian Council of Ministers of the Environment and the Canadian Food Inspection Agency, except for arsenic which was elevated in all age classes from all sites (4.8-12.68 mg kg). Mercury and methylmercury (both ~0.04 mg kg) minimally exceeded one guideline in some age-classes and sites. There was also no consistent pattern of contaminant accumulation across either age classes or at particular sites. This study serves as a baseline for future monitoring following remediation of Boat Harbour.
2018年进行了一项基线调查，以了解加拿大诺森伯兰海峡美洲龙虾（美洲螯龙虾）体内的污染物特征。采样包括在距离历史污染场地船港河口4公里、20公里和70公里处的三个年龄组的龙虾，该污染场地即将进行修复。对龙虾组织进行了金属（类金属）、甲基汞、多环芳烃以及多氯二苯并对二恶英和多氯二苯并呋喃的检测。除了所有场地所有年龄组的砷含量均升高（4.8 - 12.68毫克/千克）外，污染物浓度总体上低于加拿大环境部长理事会和加拿大食品检验局制定的指导标准。汞和甲基汞（均约为0.04毫克/千克）在某些年龄组和场地略微超过了一项指导标准。在年龄组之间或特定场地，也没有一致的污染物积累模式。这项研究为船港修复后的未来监测提供了基线。
