Effects of sediment geochemical properties on heavy metal bioavailability
As the largest container and resource of metals, sediment has a special role in the fate of metals. Factors influencing bioavailability of heavy metals in sediment have never been comprehensively considered and the sediment properties still fail to understand and even controversial. In this review,...
| Main Authors: | , , , , , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2014-12-01
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| Series: | Environment International |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S016041201400258X |
| _version_ | 1828856325309726720 |
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| author | Chang Zhang Zhi-gang Yu Guang-ming Zeng Min Jiang Zhong-zhu Yang Fang Cui Meng-ying Zhu Liu-qing Shen Liang Hu |
| author_facet | Chang Zhang Zhi-gang Yu Guang-ming Zeng Min Jiang Zhong-zhu Yang Fang Cui Meng-ying Zhu Liu-qing Shen Liang Hu |
| author_sort | Chang Zhang |
| collection | DOAJ |
| description | As the largest container and resource of metals, sediment has a special role in the fate of metals. Factors influencing bioavailability of heavy metals in sediment have never been comprehensively considered and the sediment properties still fail to understand and even controversial. In this review, the mechanisms of sediment properties such as acid-volatile sulfides (AVS), organic matter, texture (clay, silt or sand) and geology, organism behaviors as well as those influencing the bioavailability of metals were analyzed. Under anoxic condition, AVS mainly reduce the solubility and toxicity of metals, while organic matters, Fe–Mn oxides, clay or silt can stabilize heavy metals in elevated oxidative–reductive potential (ORP). Other factors including the variation of pH, redox potential, aging as well as nutrition and the behavior of benthic organism in sediment also largely alter metals mobility and distribution. These factors are often inter-related, and various toxicity assessment methods used to evaluate the bioavailability of trace metals have been also discussed. Additionally, we expect that some novel synthetic materials like polysulfides, nano-materials, provide the substantial amendments for metals pollution in sediment. Keywords: Sediment geochemical properties, Heavy metals, Bioavailability, Toxicity assessment |
| first_indexed | 2024-12-13T01:13:27Z |
| format | Article |
| id | doaj.art-093aab1a90604101b31938de7d1386c5 |
| institution | Directory Open Access Journal |
| issn | 0160-4120 |
| language | English |
| last_indexed | 2024-12-13T01:13:27Z |
| publishDate | 2014-12-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Environment International |
| spelling | doaj.art-093aab1a90604101b31938de7d1386c52022-12-22T00:04:24ZengElsevierEnvironment International0160-41202014-12-0173270281Effects of sediment geochemical properties on heavy metal bioavailabilityChang Zhang0Zhi-gang Yu1Guang-ming Zeng2Min Jiang3Zhong-zhu Yang4Fang Cui5Meng-ying Zhu6Liu-qing Shen7Liang Hu8Corresponding authors at: College of Environmental Science and Engineering, Hunan University, Changsha 410082, China. Tel./fax: +86 731 88822312.; College of Environmental Science and Engineering, Hunan University, Changsha 410082, China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, ChinaCollege of Environmental Science and Engineering, Hunan University, Changsha 410082, China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, ChinaCorresponding authors at: College of Environmental Science and Engineering, Hunan University, Changsha 410082, China. Tel./fax: +86 731 88822312.; College of Environmental Science and Engineering, Hunan University, Changsha 410082, China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, ChinaCollege of Environmental Science and Engineering, Hunan University, Changsha 410082, China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, ChinaCollege of Environmental Science and Engineering, Hunan University, Changsha 410082, China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, ChinaCollege of Environmental Science and Engineering, Hunan University, Changsha 410082, China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, ChinaCollege of Environmental Science and Engineering, Hunan University, Changsha 410082, China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, ChinaCollege of Environmental Science and Engineering, Hunan University, Changsha 410082, China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, ChinaCollege of Environmental Science and Engineering, Hunan University, Changsha 410082, China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, ChinaAs the largest container and resource of metals, sediment has a special role in the fate of metals. Factors influencing bioavailability of heavy metals in sediment have never been comprehensively considered and the sediment properties still fail to understand and even controversial. In this review, the mechanisms of sediment properties such as acid-volatile sulfides (AVS), organic matter, texture (clay, silt or sand) and geology, organism behaviors as well as those influencing the bioavailability of metals were analyzed. Under anoxic condition, AVS mainly reduce the solubility and toxicity of metals, while organic matters, Fe–Mn oxides, clay or silt can stabilize heavy metals in elevated oxidative–reductive potential (ORP). Other factors including the variation of pH, redox potential, aging as well as nutrition and the behavior of benthic organism in sediment also largely alter metals mobility and distribution. These factors are often inter-related, and various toxicity assessment methods used to evaluate the bioavailability of trace metals have been also discussed. Additionally, we expect that some novel synthetic materials like polysulfides, nano-materials, provide the substantial amendments for metals pollution in sediment. Keywords: Sediment geochemical properties, Heavy metals, Bioavailability, Toxicity assessmenthttp://www.sciencedirect.com/science/article/pii/S016041201400258X |
| spellingShingle | Chang Zhang Zhi-gang Yu Guang-ming Zeng Min Jiang Zhong-zhu Yang Fang Cui Meng-ying Zhu Liu-qing Shen Liang Hu Effects of sediment geochemical properties on heavy metal bioavailability Environment International |
| title | Effects of sediment geochemical properties on heavy metal bioavailability |
| title_full | Effects of sediment geochemical properties on heavy metal bioavailability |
| title_fullStr | Effects of sediment geochemical properties on heavy metal bioavailability |
| title_full_unstemmed | Effects of sediment geochemical properties on heavy metal bioavailability |
| title_short | Effects of sediment geochemical properties on heavy metal bioavailability |
| title_sort | effects of sediment geochemical properties on heavy metal bioavailability |
| url | http://www.sciencedirect.com/science/article/pii/S016041201400258X |
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