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| Screening Native Freshwater Molluscs for Establishing Aquatic Life Criteria |
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| KeyWord:freshwater molluscs; criteria test organisms; pollutants; species sensitivity distribution; water quality criteria |
| Author Name | Affiliation | | QIN Lu-mei | College of Environmental Science and Engineering, Guilin University of Technology, Guilin 541004, China
State Key Laboratory for Environmental Criteria and Risk Assessment, State Environmental Protection Key Laboratory of Ecological Effects and Risk Assessment of Chemicals, Chinese Research Academy of Environmental Science, Beijing 100012, China | | ZHANG Ya-hui | State Key Laboratory for Environmental Criteria and Risk Assessment, State Environmental Protection Key Laboratory of Ecological Effects and Risk Assessment of Chemicals, Chinese Research Academy of Environmental Science, Beijing 100012, China | | CAO Ying | State Key Laboratory for Environmental Criteria and Risk Assessment, State Environmental Protection Key Laboratory of Ecological Effects and Risk Assessment of Chemicals, Chinese Research Academy of Environmental Science, Beijing 100012, China | | YAN Zhen-guang | State Key Laboratory for Environmental Criteria and Risk Assessment, State Environmental Protection Key Laboratory of Ecological Effects and Risk Assessment of Chemicals, Chinese Research Academy of Environmental Science, Beijing 100012, China | | ZENG Hong-hu | College of Environmental Science and Engineering, Guilin University of Technology, Guilin 541004, China | | LIU Zheng-tao | State Key Laboratory for Environmental Criteria and Risk Assessment, State Environmental Protection Key Laboratory of Ecological Effects and Risk Assessment of Chemicals, Chinese Research Academy of Environmental Science, Beijing 100012, China |
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| Abstract: |
| A series of systematic studies on water quality criteria（WQC） has recently been conducted in China. Screening of test organisms is an important part for developing WQC. Molluscs are major components of test organisms for establishing aquatic life criteria. According to the WQC derivation guidelines of the US EPA, toxicity data of twelve typical native freshwater molluscs were collected and screened from the ECOTOX database and other published literatures. Three types of pollutants that are most toxic to molluscs were pesticides, heavy metals and conventional pollutants. The species sensitivity distribution（SSD） of molluscs indicated that the cumulative probability of Semisulcospira libertine to dinoseb was 21%, Lymnaea stagnalis to ammonia 8% and Corbicula manilensis to sodium nitrite 3%. These three molluscs were also sensitive to pesticide（dinoseb） and to conventional pollutants（ammonia and sodium nitrite）. Thus they could be regarded as test organisms for the aquatic life criteria. |
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