摘要
表层沉积物重金属分布、污染源及潜在风险研究可为区域内重金属浓度变化及环境污染研究提供基础数据,为区域内渔业生产、海洋环境保护、典型生态系统的可持续发展提供科学数据及理论研究。通过对海南省东寨港内表层沉积物重金属的含量分布、同源相关性及生态危害程度分析与评价,结果表明:东寨港表层沉积物铜(Cu),铅(Pb),锌(Zn),镉(Cd),铬(Cr),汞(Hg)及砷(As)高值主要位于航道、口门及东潮沟;重金属Cu,Zn,Hg及As相互呈极显著相关,具相同污染源,主要受渔船与养殖影响;Pb,Cd与Cr相关性不显著,同源性有待考察。区域内重金属潜在生态危害以中等生态危害为主,其次为轻微生态危害,未出现强生态危害或很强生态危害,多种重金属的潜在生态危害指数(RI)较高的站位大致位于东寨港口门附近及东潮沟,潜在生态风险:Cd>Hg>Cu>As>Pb>Cr>Zn。
The study of distribution,pollutant source and potential risks of heavy metals in the surface sediment is the basis of further studying their concentration change and environmental pollution,and can provide data for regional fishery production,marine environmental protection and sustainable development of typical ecosystems.This study analyzed and evaluated the distributions,homologous correlations and ecological damage degrees of heavy metals in the surface sediments of Dongzhai Harbor,Hainan province.The results showed that the high values of heavy metals（Cu,Pb,Zn,Cd,Cr,Hg and As）were mainly located in the harbor channel,harbor entrance and eastern tidal creek.Some heavy metals（e.g.,Cu,Zn,Hg and As）have a same pollutant source which is affected by fishing boats and cultivation.There is no significant correlation between Pb,Cd and Cr.Potential ecological risk of heavy metals in the region were dominated by medium ecological risk,and minor slight ecological risk,and there are no serious or very serious ecological risks in the region.Some stations with higher RI（Potential ecological harm coefficient of various heavy metals）were located in harbor entrance and eastern tidal creek,and the order of increasing potential ecological risks was as follows,Cd〉Hg〉Cu〉As〉Pb〉Cr〉Zn.
作者
邢孔敏
陈石泉
蔡泽富
向芸芸
陈晓慧
王海先
王道儒
XING Kong -min;CHEN Shi-quan;CAI Ze -fu;XIANG Yun-yun;CHEN Xiao-hui;WANG Hai-xian;WANG Dao-ru(Hainan Academy of Ocean and Fisheries Sciences,Haikou 570125,China;The Second Institute of Oceanography,SOA,Hangzhou 310012,China)
出处
《海洋科学进展》
CAS
CSCD
北大核心
2018年第3期478-488,共11页
Advances in Marine Science
基金
国家重点研发计划项目--海草床退化机理研究及生态恢复技术研发与示范(2017YFC0506104)
国家自然科学基金青年科学基金项目--土地资源约束下海岛系统的适应性管理研究(41506140)
国家自然科学基金地区科学基金项目--海洋自然保护区旅游生态补偿:适应性
运作机理与实现路径研究(41661111)
海南自然科学基金面上项目--海南岛周边养殖活动对珊瑚海草资源的影响研究(20163092)
海南周边围填海生态系统服务功能损害与补偿研究(318MS119)
关键词
东寨港
相关性
重金属
沉积物
生态危害评价
Dongzhai Harbor
correlation
heavy metals
sediments
ecological risk assessment
