| 氟利昂替代品降解产物——三氟乙酸对水环境的潜在影响 |
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| 引用本文： | 张颖,李金龙,张剑波.氟利昂替代品降解产物——三氟乙酸对水环境的潜在影响[J].中国环境监测,2001,17(5):8-11. |
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| 作者姓名： | 张颖 李金龙 张剑波 |
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| 作者单位： | 北京大学环境科学中心, |
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| 基金项目： | 国家自然科学基金项目 ( 2 99770 0 1 ) |
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| 摘 要： | 三氟乙酸 (简称 TFA)是氟利昂替代品的主要降解产物之一 ,该物质会造成大气环境的恶化 ,雨水会将其从大气中去除。三氟乙酸化学性质极其稳定 ,在水中全部溶解。在自然条件下 ,三氟乙酸不降解、不光解、不被土壤吸附、不被微生物分解 ,易于在水体中积累 ,特别是在没有流入和流出的水体及季节性湿地中蓄积。全球雨水中的三氟乙酸 2 0 1 0年预计可达到 1 0 0～ 1 60 ng/L,部分地区地表水可达到 1 60 ng/L。
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| 关 键 词： | 氟利昂替代品 三氟乙酸 降解 影响 |
| 文章编号： | 1002-6002(2001)05-0008-04 |
| 修稿时间： | 2000年12月29 |
Potential accumulation of Trifluoroacetates CFC-replacement degradation product in water |
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| ZHANG Ying,et al.Potential accumulation of Trifluoroacetates CFC-replacement degradation product in water[J].Environmental Monitoring in China,2001,17(5):8-11. |
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| Authors: | ZHANG Ying |
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| Abstract: | Trifluoroacetates(TFA) is one of the main degradation substances of CFCs substitutes TFA will cause the deterioration of atmospheric environmental TFA is removed from the atmosphere mainly by rainfall and can be completely absorbed in water TFA is extremely stable in its chemical structure In nature environment, TFA will neither be degraded no be photolysis TFA will neither be adhered to soil nor be decomposed by microbe Accumulation of TFA in water can easily occur in water, particularly in isolated water and seasonal wet land In 2010,TFA in global rainwater can be expected to reach 100~160ng/L It will reach 160ng/L in surface water in certain region |
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| Keywords: | CFC replacement Trifluoroacetates degradation impact |
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