College of Marine Geo-Science, Ocean University of China, Qingdao 266100, China; Key Lab of Submarine Geosciences and Prospecting Techniques, Ministry of Education, Qingdao 266100, China.
College of Marine Geo-Science, Ocean University of China, Qingdao 266100, China.
Mar Pollut Bull. 2022 Feb;175:113152. doi: 10.1016/j.marpolbul.2021.113152. Epub 2021 Nov 22.
In this study, the pollution level of heavy metals (HMs), their sources as well as factors influencing their distribution, were studied using data about the concentration of Cr, Pb, Cu, As, Hg and Zn in surface sediment samples from Haiyang coastal areas, and those on sediment grain size and tidal residual currents. Cr, Cu and Pb originated from natural processes and had similar distributions which were mainly affected by sediment grain size, tidal residual currents and coastal currents. Areas with high levels of these elements were also mainly located in the sedimentation zone of fine materials with weak hydrodynamic force. In contrast, Zn and Hg were derived from anthropogenic activities such as industrial sewage and raft cultures, while As originated from both natural and human sources. Overall, sediment grain size, hydrodynamic effects and human activities were the main factors affecting the distribution of HMs in the Haiyang coastal sea.
本研究通过对海阳沿海表层沉积物中 Cr、Pb、Cu、As、Hg 和 Zn 浓度以及沉积物粒径和潮流余流数据的分析，研究了重金属（HMs）的污染水平、来源及其分布的影响因素。Cr、Cu 和 Pb 来源于自然过程，分布相似，主要受沉积物粒径、潮流余流和沿岸流的影响。这些元素含量高的地区也主要位于细物质沉积区，水动力较弱。相比之下，Zn 和 Hg 则来自工业污水和筏式养殖等人为活动，而 As 则来自自然和人为来源。总体而言，沉积物粒径、水动力效应和人类活动是影响海阳沿海海域 HMs 分布的主要因素。
