State Key Laboratory of Tropical Oceanography, South China Sea Institute of Oceanology, Chinese Academy of Sciences, 510301, Guangzhou, China.
Innovation Academy of South China Sea Ecology and Environmental Engineering, Chinese Academy of Sciences, 510301, Guangzhou, China.
Ecotoxicology. 2020 Aug;29(6):762-770. doi: 10.1007/s10646-020-02211-6. Epub 2020 Apr 27.
Sediment quality caused by heavy metals was investigated in the Mirs Bay and Tolo Harbor, Hong Kong, China. Samples were collected in January and July, 2010. One-way analysis of variance showed that sediment quality variables (Fe, Zn, Mn, Pb, V, Cu, Cr, Ba, Ni and As) were significantly different (p < 0.05) among the sampling areas, whereas the average concentration of V, Eh and Ba exhibited the significant seasonal variations (p < 0.05) between January and July. The spatial pattern of heavy metals (Pb, Zn and Cu) can probably be attributed to anthropogenic and tidal flushing influence in the harbor. Both geo-accumulation index (I) and enrichment factor (EF) were used to identify the metal pollution level and its related source. Pb, Zn, and Cu are considered as "polluted metal" in Tolo Harbor. Cluster analysis (CA) identified three distinct clusters with the Tolo Habor and Shatou Jiao, the inner bay and the south part of the bay. Principal component analysis (PCA) identified the spatial patterns and their affected parameters in the studying area. Results showed metals distribution in Mirs Bay and its adjacent area is principally affected by human activities such as marineculture, dumping, located mostly in Tolo Harbor and Shatou Jiao, where was closely related with anthropogenic influence. While the monitoring stations including MS13-MS16 and MS8 locating in the south part of the studying area might be corresponded to natural influence.
对中国香港大鹏湾和吐露港的重金属沉积物质量进行了研究。样品于 2010 年 1 月和 7 月采集。单因素方差分析表明，沉积物质量变量（Fe、Zn、Mn、Pb、V、Cu、Cr、Ba、Ni 和 As）在采样区域之间存在显著差异（p<0.05），而 V、Eh 和 Ba 的平均浓度在 1 月和 7 月之间存在显著的季节性变化（p<0.05）。重金属（Pb、Zn 和 Cu）的空间格局可能归因于港口的人为和潮汐冲刷影响。地质累积指数（I）和富集因子（EF）都用于识别金属污染水平及其相关来源。Pb、Zn 和 Cu 被认为是吐露港的“污染金属”。聚类分析（CA）将研究区域分为三个不同的聚类，包括吐露港和沙头角、内湾和海湾南部。主成分分析（PCA）确定了研究区域的空间模式及其受影响的参数。结果表明，大鹏湾及其邻近地区的金属分布主要受人类活动的影响，如海洋养殖、倾倒等，主要集中在吐露港和沙头角，这与人为影响密切相关。而位于研究区域南部的监测站（MS13-MS16 和 MS8）可能与自然影响相对应。
