CAS Key Laboratory of Marine Ecology and Environmental Sciences, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China; Key Laboratory of Testing and Evaluation for Aquatic Product Safety and Quality, Ministry of Agriculture, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao 266071, China.
CAS Key Laboratory of Marine Ecology and Environmental Sciences, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China; Laboratory for Marine Ecology and Environmental Sciences, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266237, China; University of Chinese Academy of Sciences, Beijing 100049, China.
Mar Pollut Bull. 2018 Oct;135:176-182. doi: 10.1016/j.marpolbul.2018.07.010. Epub 2018 Jul 11.
Reconstructing heavy metal historical trends are essential for better understanding anthropogenic impact on marine ecosystems. In this work, the ecological risk and sources of Cr, Mn, Ni, Cu, Zn, As, Cd, and Pb in Jiaozhou Bay were studied and the anthropogenic metal emissions was also quantified. The ecological risk was mainly caused by Cd, As and Cu, which presented an increasing trend with increased anthropogenic activities since the 1950s. The statistical analysis show that Cr, Mn, Ni, Cu and Zn were primarily from natural sources. Cadmium and Mn might originate from both natural and anthropogenic sources. Arsenic and Pb were sourced from agricultural activities and atmospheric precipitation, respectively. The anthropogenic flux of Cr, Mn, Ni, Cu, Zn, As, Cd and Pb were 138, 586, 63, 66, 161, 35, 0.31 and 44 mg/m/a since the 1950s. Over 40.0% of Cu and As were quantified from anthropogenic emissions since the 1950s.
重建重金属历史趋势对于更好地了解人为因素对海洋生态系统的影响至关重要。本研究调查了胶州湾 Cr、Mn、Ni、Cu、Zn、As、Cd 和 Pb 的生态风险和来源，并量化了人为金属排放。生态风险主要由 Cd、As 和 Cu 引起，自 20 世纪 50 年代以来，随着人为活动的增加，其风险呈上升趋势。统计分析表明，Cr、Mn、Ni、Cu 和 Zn 主要来自自然源。Cd 和 Mn 可能来自自然和人为源。As 和 Pb 分别来自农业活动和大气降水。自 20 世纪 50 年代以来，胶州湾 Cr、Mn、Ni、Cu、Zn、As、Cd 和 Pb 的人为通量分别为 138、586、63、66、161、35、0.31 和 44mg/m/a。自 20 世纪 50 年代以来，超过 40.0%的 Cu 和 As 来自人为排放。
