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梁千千,谭凯燕,戴圣生,王伊华,陈丽雯,雷富.钦州湾海域表层沉积物重金属分布与污染评价[J].广西科学,2023,30(2):291-298. [点击复制]
- LIANG Qianqian,TAN Kaiyan,DAI Shengsheng,WANG Yihua,CHEN Liwen,LEI Fu.Distribution and Pollution Assessment of Heavy Metals in Surface Sediments of Qinzhou Bay[J].Guangxi Sciences,2023,30(2):291-298. [点击复制]
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| 钦州湾海域表层沉积物重金属分布与污染评价 |
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梁千千1,2, 谭凯燕3, 戴圣生4, 王伊华1,2, 陈丽雯1,2, 雷富1,2
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| (1.广西海洋科学院(广西红树林研究中心), 广西近海海洋环境科学重点实验室, 广西南宁 530007;2.北部湾海洋产业研究院, 广西防城港 538000;3.广西壮族自治区产品质量检验研究院, 广西南宁 530200;4.广西科学院, 广西南宁 530007) |
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| 摘要: |
| 为探究广西钦州湾海域表层沉积物中重金属分布特征和污染情况，于2021年12月在钦州湾海域采集20个表层沉积物，利用原子吸收光谱仪和原子荧光分光光度计测定重金属(Cu、Pb、Zn、Cd、Cr、Hg、As)含量，并运用潜在生态风险指数法和地累积指数法对重金属污染程度和生态风险等级进行评价。结果表明，研究区表层沉积物重金属平均含量均未超出海洋沉积物质量一类标准限值。潜在生态风险评价显示，Cd为中等生态危害，其余重金属为轻微生态危害。地累积指数评价结果显示，Cu、Pb、Zn、Cr、Hg和As污染程度为无污染，Cd介于无污染与中污染之间，各重金属的污染程度依次为Cd>As>Pb>Cu>Cr>Zn>Hg。 |
| 关键词: 钦州湾 重金属 表层沉积物 生态风险 分布特征 |
| DOI：10.13656/j.cnki.gxkx.20230529.008 |
| 投稿时间：2022-04-22修订日期：2022-11-10 |
| 基金项目:广西科技重大专项(桂科AA17202020)和广西近海海洋环境科学重点实验室开放基金项目(GXKLHY21-03)资助。 |
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| Distribution and Pollution Assessment of Heavy Metals in Surface Sediments of Qinzhou Bay |
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LIANG Qianqian1,2, TAN Kaiyan3, DAI Shengsheng4, WANG Yihua1,2, CHEN Liwen1,2, LEI Fu1,2
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| (1.Guangxi Key Laboratory of Marine Environmental Science, Guangxi Academy of Marine Sciences (Guangxi Mangrove Research Center), Nanning, Guangxi, 530007, China;2.Beibu Gulf Marine Industry Research Institute, Fangchenggang, Guangxi, 538000, China;3.Guangxi Zhuang Autonomous Region Institute of Product Quality Inspection, Nanning, Guangxi, 530200, China;4.Guangxi Academy of Sciences, Nanning, Guangxi, 530007, China) |
| Abstract: |
| In order to explore the distribution characteristics and pollution of heavy metals in surface sediments of Qinzhou Bay in Guangxi,20 surface sediments were collected in Qinzhou Bay in December 2021.The contents of heavy metals (Cu,Pb,Zn,Cd,Cr,Hg,As) were determined by atomic absorption spectrometer and atomic fluorescence spectrophotometer,and the pollution degree and ecological risk level of heavy metals were evaluated by potential ecological risk index method and geo-accumulation index method.The results showed that the average content of heavy metals in surface sediments of the study area did not exceed the standard limit of marine sediment quality.The potential ecological risk assessment showed that Cd was a moderate ecological hazard,and the remaining heavy metals were mild ecological hazards.The results of geo-accumulation index showed that the pollution degree of Cu,Pb,Zn,Cr,Hg and As was pollution-free,and the pollution degree of Cd was between pollution-free and moderate pollution.The pollution degree of each heavy metal was Cd>As>Pb>Cu>Cr>Zn>Hg. |
| Key words: Qinzhou Bay heavy metals surface sediments ecological risk distribution characteristics |
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