Faculty of Social and Educational Sciences, Norwegian University of Science and Technology, NO-7491, Trondheim, Norway.
Geochemistry and Hydrogeology, Geological Survey of Norway, P.O. Box 6315 Torgard, NO-7491, Trondheim, Norway.
Environ Sci Pollut Res Int. 2018 Mar;25(8):7409-7417. doi: 10.1007/s11356-017-1000-4. Epub 2017 Dec 26.
In annual surveys conducted during the period 2012-2015, concentrations of the toxic or essential elements B, Se, Cd, Sn, Cs, Hg, Pb, Al, Cr, Mn, Fe, Ni, Cu, Zn, and As were analyzed in brown meat of edible crab (Cancer pagurus), and filets of cod (Gadus morhua) and halibut (Hippoglossus hippoglossus) in one of the most important commercial crab fishing areas in Norway, at Mausund in Frøya municipality in Sør-Trøndelag, Norway. Concentrations of the elements were analyzed in sediments in 2015. Several salmon farms are located in this area. Samples were extracted by HNO and analyzed using inductively coupled plasma mass spectroscopy (ICP-MS). Crab, cod, and halibut were caught in a total of five locations. One of these locations was in the proximity of a salmon farm. In edible crabs, the mean ranks were significantly different between two locations only for Sn (p = 0.034). When all data were pooled, the mean ranks statistics showed significant difference between all years for the elements Se (p = < 0.001), Cs (p = 0.005), Mn (p = 0.002), Zn (p = 0.006), and As (p = 0.001) in edible crab. The study showed elevated levels of Cd in edible crabs in 2012, 2013, 2014, and 2015, with the highest levels in 2015. In cod, there were significant differences between locations for the elements B (p = 0.003), and Pb (p = 0.04), as well as between the years for the elements B, Sn, Cs, Hg, Cr, and As (p = < 0.01). The study showed elevated level of Pb in cod in 2013. Halibut showed no significant differences between years or locations for any elements. The Cd, Hg, and Pb values of the sediments in this study indicate that local geogenic sources cannot be considered a major cause of high values in local biota.
在 2012-2015 年期间进行的年度调查中，分析了挪威最重要的商业螃蟹捕捞区之一——挪威特伦德拉格郡弗洛亚市毛斯安德的食用螃蟹（Cancer pagurus）的棕色肉质、鳕鱼（Gadus morhua）和比目鱼（Hippoglossus hippoglossus）的文件中 B、Se、Cd、Sn、Cs、Hg、Pb、Al、Cr、Mn、Fe、Ni、Cu、Zn 和 As 等有毒或必需元素的浓度。2015 年还分析了沉积物中的元素浓度。该地区有几个鲑鱼养殖场。样品通过 HNO 提取，并使用电感耦合等离子体质谱法（ICP-MS）进行分析。在总共五个地点捕获了螃蟹、鳕鱼和比目鱼。其中一个地点位于鲑鱼养殖场附近。在食用螃蟹中，只有 Sn 的两个地点之间的平均等级存在显著差异（p=0.034）。当所有数据汇总时，所有年份的元素 Se（p<0.001）、Cs（p=0.005）、Mn（p=0.002）、Zn（p=0.006）和 As（p=0.001）的平均等级统计数据均存在显著差异。研究表明，2012 年、2013 年、2014 年和 2015 年食用螃蟹中 Cd 含量升高，2015 年含量最高。在鳕鱼中，元素 B（p=0.003）和 Pb（p=0.04）的地点之间存在显著差异，以及元素 B、Sn、Cs、Hg、Cr 和 As（p<0.01）的年份之间存在显著差异。研究表明，2013 年鳕鱼中 Pb 含量升高。比目鱼的任何元素在年份或地点之间均无显著差异。本研究中的沉积物 Cd、Hg 和 Pb 值表明，当地的地球成因来源不能被认为是当地生物群中高值的主要原因。
