Third Institute of Oceanography, Ministry of Natural Resources, Xiamen 361005, China.
Third Institute of Oceanography, Ministry of Natural Resources, Xiamen 361005, China.
Mar Pollut Bull. 2022 Jan;174:113237. doi: 10.1016/j.marpolbul.2021.113237. Epub 2021 Dec 17.
In this paper, the distribution, degree of pollution and sources of Cu, Pb, Zn, Cd, Cr, As, Co, Ni and Hg in the surface sediment of Sanmen Bay were studied. The average concentrations of the identified potentially toxic elements (PTEs) were in the following order: Zn > Ni > Cr > Cu > Pb > Co > As>Cd > Hg. Almost all PTEs had a significant positive correlation with TOC, clay and Al; Cr had no significant correlations. Apart from Hg, the contamination levels of 8 PTEs were at those considered to be low-to-no pollution. Comparatively, the contamination level of Hg was much higher than the background value, which indicated moderate pollution. The source of this pollution may have included industrialization, urbanization and/or transport of industrial waste materials. Both geoaccumulation index (I) and potential ecological risk (RI) values suggested that Hg was the major contributor to the ecological risk posed by the selected PTEs.
本文研究了三门湾表层沉积物中 Cu、Pb、Zn、Cd、Cr、As、Co、Ni 和 Hg 的分布、污染程度和来源。鉴定出的潜在有毒元素（PTE）的平均浓度顺序为：Zn＞Ni＞Cr＞Cu＞Pb＞Co＞As＞Cd＞Hg。几乎所有 PTE 与 TOC、粘土和 Al 呈显著正相关；Cr 与它们没有显著相关性。除 Hg 外，8 种 PTE 的污染水平被认为处于低污染到无污染的水平。相比之下，Hg 的污染水平远高于背景值，表明存在中度污染。这种污染的来源可能包括工业化、城市化和/或工业废料的运输。地质累积指数（I）和潜在生态风险（RI）值都表明，Hg 是造成所选 PTEs 生态风险的主要因素。
