Environmental Geology group, School of Geosciences, Sydney University, Sydney, NSW, Australia.
Environ Sci Pollut Res Int. 2014 Jan;21(1):704-16. doi: 10.1007/s11356-013-1961-x. Epub 2013 Jul 13.
Metal concentrations of the inshore greentail prawn, Metapenaeus bennettae, and surface sediments from locations within Sydney estuary and Port Hacking (Australia) were assessed for bioaccumulation and contamination. The current study aimed to assess metal concentrations in prawn tissue (tail muscle, exoskeleton, hepatopancreas and gills), relate whole body prawn tissue metal concentrations to sediment metal concentrations and animal size, as well as assess prawn consumption as a risk to human health. Metal concentrations were highest in sediment and prawns from contaminated locations (Iron Cove, Hen and Chicken Bay and Lane Cove) in Sydney estuary compared with the reference estuary (Port Hacking). Concentrations in sediments varied considerably between sites and between metals (As, Cd, Cr, Cu, Ni, Pb and Zn), and although concentrations exceeded Interim Sediment Quality Guideline-Low values, metals (As, Cd, Cr, Cu, Ni, Pb and Zn) were below Australian National Health and Medical Research Council human consumption guidelines in prawn tail muscle tissue. Metal concentrations in prawn tail muscle tissue were significantly different (p ≤ 0.05) amongst locations for Pb, Zn and Cd, and metal concentrations were generally highest in gills tissue, followed by the hepatopancreas, exoskeleton and tail muscle. The exoskeleton contained the highest Sr concentration; the hepatopancreas contained the highest As, Cu and Mo concentrations; and the gills contained the highest Al, Cr, Fe and Pb concentrations. Concentrations of Pb, As and Sr were significantly different (p ≤ 0.05) between size groups amongst locations.
本研究旨在评估悉尼港（澳大利亚）河口内和港汉（Hack-ing 港）各地点近岸绿须虾（Metapenaeus bennettae）体内的金属浓度和沉积物中的金属浓度，以评估其生物累积和污染情况。研究结果表明，与参照河口（港汉）相比，河口内受污染地点（Iron Cove、Hen and Chicken Bay 和 Lane Cove）的沉积物和虾体内的金属浓度更高。各地点之间以及各金属（砷、镉、铬、铜、镍、铅和锌）之间的沉积物浓度差异较大，尽管浓度超过了暂定沉积物质量指南-低值，但在虾的肌肉组织中，除了砷、镉、铬、铜、镍、铅和锌之外，其他金属浓度均低于澳大利亚国家健康与医学研究委员会人类消费指南值。各地点之间的虾肌肉组织中铅、锌和镉的浓度差异显著（p≤0.05），且金属浓度通常在鳃组织中最高，其次是肝胰腺、外骨骼和肌肉组织。外骨骼中锶的浓度最高；肝胰腺中砷、铜和钼的浓度最高；而鳃中铝、铬、铁和铅的浓度最高。各地点之间的大小组之间的铅、砷和锶浓度差异显著（p≤0.05）。
