| 基于我国海洋生物区系特征的渤海表层水体中镉的概率生态风险评估 |
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| 引用本文： | 穆景利,王菊英,王莹,丛艺,张志锋.基于我国海洋生物区系特征的渤海表层水体中镉的概率生态风险评估[J].海洋学报(英文版),2014,33(12):212-221. |
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| 作者姓名： | 穆景利 王菊英 王莹 丛艺 张志锋 |
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| 基金项目： | The National Natural Science Foundation of China under contract No. 41106089; the National Key Technology Research and Development Program of the Ministry of Science and Technology of China under contract No. 2010BAC69B01; the Scientific Research Special Fund of Marine Public Welfare Industry under contract No. 201005008-1. |
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| 摘 要： | Predicted no-effect concentration(PNEC) is often used in ecological risk assessment to determine low-risk concentrations for chemicals. In the present study, the chronic data from native saltwater species were used to calculated PNEC values using four methods: log-normal distribution(ETX 2.0), log-triangle distribution(US EPA's water quality criteria procedure), burr III distribution(Burrli OZ) and traditional assessment factor(AF). The PNECs that were calculated using four methods ranged from 0.08 μg/L to 1.8 μg/L. Three of the SSD-derived PNECs range from 0.94 to 1.8 μg/L, about a factor of two apart. To demonstrate the use of SSD-based PNEC values and comprehensively estimate the regional ecological risk for cadmium in surface water of the Bohai Sea, in the Liaodong Bay, Bohai Bay, and Laizhou Bay, China, the dissolved cadmium concentrations were measured and obtained 753 valid data covering 190 stations from July 2006 to November 2007. Based on three ecological risk assessment approaches, namely hazard quotient(HQ), probabilistic risk quotient and joint probability curve(JPC), the potential ecological risk of cadmium in surface water of the Liaodong Bay, Bohai Bay, and Laizahou Bay were estimated. Overall, the ecological risk of cadmium to aquatic ecosystem in the whole Bohai Sea was at acceptable ecological risk level, the order of ecological risk was Liaodong BayBohai BayLaizhou Bay. However, more concerns should be paid to aquatic ecological risk in the Liaodong Bay which is the home of many steel, metallurgy and petrochemical industrial in China.
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| 关 键 词： | 生态风险评估 概率曲线 渤海湾 镉 咸水 对数正态分布 潜在生态风险 水生生态系统 |
| 收稿时间： | 2013/7/18 0:00:00 |
| 修稿时间： | 2013/12/24 0:00:00 |
Probabilistic ecological risk assessment of cadmium in the Bohai Sea using native saltwater species |
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| MU Jingli,WANG Juying,WANG Ying,CONG Yi and ZHANG Zhifeng.Probabilistic ecological risk assessment of cadmium in the Bohai Sea using native saltwater species[J].Acta Oceanologica Sinica,2014,33(12):212-221. |
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| Authors: | MU Jingli WANG Juying WANG Ying CONG Yi and ZHANG Zhifeng |
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| Institution: | Key Laboratory for Ecological Environment in Coastal Areas, State Oceanic Administration, Dalian 116023, China;National Marine Environmental Monitoring Center, Dalian 116023, China |
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| Abstract: | Predicted no-effect concentration (PNEC) is often used in ecological risk assessment to determine low-risk concentrations for chemicals. In the present study, the chronic data from native saltwater species were used to calculated PNEC values using four methods: log-normal distribution (ETX 2.0), log-triangle distribution (US EPA's water quality criteria procedure), burr III distribution (BurrliOZ) and traditional assessment factor (AF). The PNECs that were calculated using four methods ranged from 0.08 μg/L to 1.8 μg/L. Three of the SSD-derived PNECs range from 0.94 to 1.8 μg/L, about a factor of two apart. To demonstrate the use of SSD-based PNEC values and comprehensively estimate the regional ecological risk for cadmium in surface water of the Bohai Sea, in the Liaodong Bay, Bohai Bay, and Laizhou Bay, China, the dissolved cadmium concentrations were measured and obtained 753 valid data covering 190 stations from July 2006 to November 2007. Based on three ecological risk assessment approaches, namely hazard quotient (HQ), probabilistic risk quotient and joint probability curve (JPC), the potential ecological risk of cadmium in surface water of the Liaodong Bay, Bohai Bay, and Laizahou Bay were estimated. Overall, the ecological risk of cadmium to aquatic ecosystem in the whole Bohai Sea was at acceptable ecological risk level, the order of ecological risk was Liaodong Bay>Bohai Bay>Laizhou Bay. However, more concerns should be paid to aquatic ecological risk in the Liaodong Bay which is the home of many steel, metallurgy and petrochemical industrial in China. |
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| Keywords: | Bohai Sea cadmium PNEC SSD probabilistic ecological risk assessment |
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