Faculty of Engineering and the Environment, University of Southampton, Highfield, Southampton SO17 1BJ, UK.
Environ Monit Assess. 2013 May;185(5):3879-95. doi: 10.1007/s10661-012-2837-0. Epub 2012 Sep 27.
This study identifies and quantifies the spatial variations of metal contamination in water, sediment and biota: the common cockle (Cerastoderma edule) and the Mermaid's glove sponge (Haliclona oculata), within a heavily anthropogenically impacted semi-enclosed estuarine-coastal area with a low ability to disperse and flush contaminants (Poole Harbour, UK). The results showed that metal contamination was detected in all environmental compartments. Water was polluted with As, and Hg sediment metals were mostly within "the possible effect range" in which adverse effects occasionally occurs. Cockles had considerable concentrations of Ni, Ag and Hg in areas close to pollution sources, and sponges accumulate Cu and Zn with very high magnitude. A systematic monitoring approach that includes biological monitoring techniques, which covers all embayments, is needed, and an integrated management of the semi-enclosed coastal zones should be based on the overall hydrological characteristics of these sensitive areas and their ability to self-restore which is different than open coastal zones.
本研究在一个人为影响严重、扩散和冲刷污染物能力较低的半封闭港湾-海岸地区(英国普尔港),识别并量化了水、沉积物和生物体内金属污染的空间变化:常见的贻贝(Cerastoderma edule)和美人鱼手套海绵(Haliclona oculata)。结果表明,所有环境介质中均检测到了金属污染。水中受到 As 的污染,Hg 沉积物金属大部分处于“可能产生影响的范围”,其中偶尔会发生不利影响。贻贝在靠近污染源的区域中具有相当高浓度的 Ni、Ag 和 Hg,而海绵则积累了大量的 Cu 和 Zn。需要采取一种系统的监测方法,包括生物监测技术,覆盖所有港湾,并应根据这些敏感地区的整体水文特征及其自我恢复能力进行半封闭沿海地区的综合管理,这与开放的沿海地区不同。