| 何 丽,闫振广,姚庆祯,王晓南,王伟莉,郑 欣,刘征涛.氨氮海水质量基准及大辽河口氨氮暴露风险初步分析[J].农业环境科学学报,2013,32(9):1855-1861. |
| 氨氮海水质量基准及大辽河口氨氮暴露风险初步分析 |
| Marine Water Quality Criteria for Ammonia and Preliminary Risk Analysis of the Ammonia Exposure at Daliao River Estuary |
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| DOI：10.11654/jaes.2013.09.022 |
| 中文关键词: 氨氮 海洋生物 水质基准 物种敏感度分布 生态风险评估 |
| 英文关键词: ammonia marine organisms water quality criteria species sensitivity distribution ecological risk assessment |
| 基金项目: |
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| 中文摘要: |
| 搜集筛选了我国海洋生物的25种氨氮急性毒性数据，采用美国水生生物基准技术对氨氮水生生物基准进行推算，得出保护我国海水生物的氨氮急性基准值为0.085 mg·L-1，慢性基准值为0.013 mg·L-1，并利用荷兰基准技术对该计算结果进行验证，结果表明与美国基准技术方法比较接近。应用获得的氨氮基准值对大辽河口进行氨氮暴露风险分析，结果表明，13个站位均存在一定的生态风险，季节对氨氮暴露浓度水平具有重要影响，枯水期氨氮暴露风险显著大于丰水期，呈现数量级差异。大辽河口水体氨氮暴露浓度对水生生物的胁迫风险顺序为腔肠动物＞甲壳动物＞鱼类＞软体动物＞环节动物。研究结论可为氨氮水质标准制定和河口水环境管理提供技术支持。 |
| 英文摘要: |
| Ecotoxicity data of ammonia to Chinese resident marine organisms were collected and screened. The marine water quality criteria for ammonia were calculated according to the technical guidelines of the US. The acute and chronic criteria of ammonia were calculated to be 0.085 mg·L-1 and 0.013 mg·L-1, respectively. The results were verified by the Netherland’s criteria method, and the results showed that there were no apparent difference between them. Then the derived ammonia criteria were used to assess the exposure risk of ammonia at the Daliao River estuary. The results suggested that there were certain ecological risks at the 13 sampling stations, and season was a essential factor that affected the ammonia exposure concentrations. Ammonia exposure risk in dry season was significantly greater than that in the wet season with a magnitude difference. Additionally, the risk ranks for ammonia to aquatic organisms at the Daliao River estuary were：coelenterate>crustaceans>fish>molluscs>annelid. The conclusions can provide technical support to the establishment of the marine water quality standards of ammonia and the estuarine environment management. |
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