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| Analysis of sensitivity distribution to ammonia of freshwater species from China and USA |
| Received:April 08, 2018 |
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| KeyWord:Corbicula fluminea;Cipangopaludina cahayensis;species sensitivity distribution;water quality criteria;ammonia |
| Author Name | Affiliation | E-mail | | ZHANG Tian-xu | Tianjin Key Laboratory of Animal and Plant Resistance, College of Life Sciences, Tianjin Normal University, Tianjin 300387, China
Chinese Research Academy of Environmental Sciences, State Key Laboratory of Environment Criteria and Risk Assessment, Beijing 100012, China | | | SUN Jin-sheng | Tianjin Key Laboratory of Animal and Plant Resistance, College of Life Sciences, Tianjin Normal University, Tianjin 300387, China | jssun1965@aliyun.com | | ZHANG Qiu-ying | Chinese Research Academy of Environmental Sciences, State Key Laboratory of Environment Criteria and Risk Assessment, Beijing 100012, China | | | LING Jun-hong | Chinese Research Academy of Environmental Sciences, State Key Laboratory of Environment Criteria and Risk Assessment, Beijing 100012, China | | | YAN Zhen-guang | Chinese Research Academy of Environmental Sciences, State Key Laboratory of Environment Criteria and Risk Assessment, Beijing 100012, China | | | HE Huan-qi | Chinese Research Academy of Environmental Sciences, State Key Laboratory of Environment Criteria and Risk Assessment, Beijing 100012, China | |
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| Abstract: |
| Species sensitivity analysis is important for the establishment of water quality criteria(WQC). According to the United States technical guidelines for the development of aquatic life, acute and chronic toxicity data of ammonia to freshwater species(including fish, daphnia, and shellfish) in China and the USA were collected. Ammonia toxicity tests for local mollusks, Corbicula fluminea and Cipangopaludina cahayensis were performed. The ammonia toxicity data were all normalized to the baseline condition(T=20℃, pH=7.0) and the species sensitivity distribution was compared between China and the USA. The acute ammonia criteria of China and the USA were calculated. The results showed that:The overall Chinese species sensitivity to ammonia was weaker than those from the USA. However, the difference of ammonia WQC under baseline conditions between China and the USA was small(China:0.84 mg·L-1; USA:0.79 mg·L-1). Mollusks have the highest species sensitivity to ammonia of all freshwater species, in the order of mollusks > fishes > daphnia. The species sensitivity of fishes and shellfishes of China was weaker than that of the USA, whereas the differences in daphnia were not significant. In addition, shellfish larvae were more sensitive to ammonia than adults. Thus, toxicity data of mollusk larvae should be prioritized for the development of ammonia criteria. |
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