Trace Metal Concentrations in Sediments and Oysters of Botany Bay, NSW, Australia
Trace Metal Concentrations in Sediments and Oysters of Botany Bay, NSW, Australia
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澳大利亚新南威尔士州博特尼湾沉积物和牡蛎中的微量金属浓度
DOI：
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发表时间：
2003
影响因子：
4
通讯作者：
N. Otway
中科院分区：
文献类型：
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作者：
D. Spooner;W. Maher;N. Otway
分析了澳大利亚新南威尔士州Botany湾7个地点表层沉积物（< 63 µm）中痕量金属（Zn、Cu、Pd、Cd、As）的浓度，以评估周围城市地区的污染程度。植物湾的西北海岸线包含高surfical沉积物微量金属浓度相对于南部海岸线。表层沉积物铅浓度（10-120微克/克）高于目前ANZECC/ARMCANZ保护西北部底栖生态系统的临时沉积物指导值（50微克/克）。库克河被确定为微量金属的主要来源。牡蛎生长在植物学湾有更大的锌，铜，镉浓度比两个相对原始的参考位置，杰维斯湾和贝特曼斯湾，表明植物学湾地区的生物可利用的金属浓度升高。牡蛎组织微量金属浓度低于澳大利亚和新西兰食品管理局的标准。牡蛎周围的海湾的网站的易位确定铅和镉作为唯一的痕量金属积累超过3个月。铜浓度在移植的牡蛎下降，在大多数网站，表明在这项研究中调查的网站比Woolooware湾，牡蛎的来源有较少的生物可利用的铜。南部海岸线沿着的浅沃茨受到保护，不受携带污染沉积物的潮汐流的影响，生物可利用的微量金属似乎很低。
Surfical sediment (< 63 µm) trace metal concentrations (Zn, Cu, Pd, Cd, As) were analyzed from seven sites in Botany Bay, NSW, Australia, to assess the extent of contamination from the surrounding urban areas. The northwest shoreline of Botany Bay contained high surfical sediment trace metal concentrations relative to the southern shoreline. Surfical sediment Pb concentrations (10–120 µg/g) were above the current ANZECC/ARMCANZ interim sediment guideline value (50 µg/g) for the protection of benthic ecosystems at the northwest sites. Cooks River was identified as a major source of trace metals. Oysters grown in Botany Bay have greater Zn, Cu, and Cd concentrations than two relatively pristine reference locations, Jervis Bay and Batemans Bay, indicating that the Botany Bay region has elevated biologically available metal concentrations. Oyster tissue trace metal concentrations were below the Australian and New Zealand Food Authority standards. Translocation of oysters to sites around the bay identified Pb and Cd as the only trace metals to be accumulated over 3 months. Copper concentrations in transplanted oysters declined at most sites, indicating that the sites investigated in this study have less bioavailable copper than Woolooware Bay, the source of the oysters. The shallow waters along the southern shoreline are protected from the tidal flow that carry contaminated sediments and the biologically available trace metals appear to be low.