壬基酚多介质环境目标值探讨

Discussion of Nonyl Phenol Multi-Medium Environmental Goal

壬基酚是联合国环境规划署要求优先控制的27种持久性有毒污染物(PTS)之一,属内分泌干扰物质,在环境中存在时间长,具有持久性以及生物蓄积性,并且可通过食物链逐级放大。它具有模拟雌激素的作用,一旦进入生物体内,会影响生物体正常的生殖和发育,可导致人类男性精子数量的减少。目前国内外尚缺乏各环境介质中壬基酚的控制标准。利用美国环保局推荐的"多介质环境目标值"来估算壬基酚在环境介质(空气、水、土壤)中的含量及排放量的限定值,为环境影响评价提供参考数据。长江、嘉陵江水体夏季壬基酚浓度较高,或与夏季洗涤用水量增大有关。三峡库区应禁止使用含壬基酚成分的洗涤、包装用品。

Nonyl phenol is one of the 27 persistent toxic substances, which requires priority control according to the requirements of UNEP. It belongs to endocrine disrupting substance. It exists for a long time in the environment, with persistence and biological chemicals, and can be gradually exaggerated through food chain. It has simulated the effect of estrogen, once in organisms, will affect organisms normal reproductive and developmental, can lead to the reduction of human male sperm. Currently there is not any control standard of nonyl phenol in environmental media on a worldwide scale. This paper took advantage of a Multimedia Environmental Goals, which was recommended by the U. S. Environmental Protection Agency, to estimate the content and emission limit value of nonyl phenol in environmental medias （ air, water, soil ）, and to provide reference data for environmental impact assessment. The nonyl phenol concentration of the Yangtze river and Jialing river is higher in the summer, it may be associated with the increase of washing water insummer. The using of washing supplies and packaging supplies which contains nonyl phenol should be banned in the Three Gorges area.