Modeling total maximum allocated loads for heavy metals in Jinzhou Bay,China |
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| Authors: | Keqiang Li Xiaoyong Shi Xianwen Bao Qimin Ma Xiulin Wang |
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| Institution: | 1. Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, Qingdao 266100, PR China;2. College of Chemistry and Chemical Engineering, Ocean University of China, Qingdao 266100, PR China;3. Marine Disaster Reduction Center, State Oceanic Administration People’s Republic of China, Beijing 100194, PR China;4. College of Physical and Environmental Oceanography, Ocean University of China, Qingdao 266100, PR China;5. College of Environmental Science and Engineering, Ocean University of China, Qingdao 266100, PR China |
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| Abstract: | With the recent development of society and economy in the cities of Huludao and Jinzhou, Liaoning Province, China, environment and ecosystem problems have become increasingly serious in Jinzhou Bay, China, because of the increasing amount of heavy metal pollutants being discharged. To solve these problems, a water quality model of heavy metals coupled with a 3D hydrodynamic model is constructed to estimate the environmental capacity (EC) and total maximum allocated loads (TMALs) for Zn and Cd of three river catchments in Jinzhou Bay. According to the model, the ECs for Zn and Cd are approximately 17 and 8 tons per month, respectively, if the criterion obtained from HC5 values (fifth percentile of the SSD) is set as the control criterion (8.24 μg/L for Zn and 3.83 μg/L for Cd) in Jinzhou Bay, and the TMALs of the three river catchments are 4 and 1.7 tons per month. |
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| Keywords: | Environmental capacity Total maximum allocated loads Heavy metals 3-D water quality model Jinzhou Bay |
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