摘要
微量有机物对地面水体产生的污染已较普遍 ,为了解其在长江干流水体中的污染状况与特征 ,对长江干流主要城市江段水、底质和鱼体中的微量有机污染物进行了检测 ,根据检测结果 ,分析和阐述了其微量有机污染物的种类、含量水平及分布特征 ,并引用美国“多介质环境目标值”评价方法进行了综合评价。结果表明 :长江干流主要城市江段水体已普遍受到微量有机物污染 ,共鉴定出有机物 12类 30 8种 ,主要污染物种为烷烃类、多环芳烃类和脂类 ;鱼体中微量有机污染物含量普遍高于底质中 ,而底质中又高于水中 ;大中型综合工业城市江段污染较为严重 ,对健康和生态的总环境影响度较大 。
The pollution of micro organic substance to surface water has been universal. In order to understand the pollution status quo and the characteristics of the pollutants in Yangtze water, the check measurement to the micro organic pollutants in water, bottom material and fish body along Yangtze river stretches of urban areas in major cities was carried out. Based on the measured results, the sorts, content and distribution characteristics of micro organic pollutants are analysed and described. Water quality comprehensive evaluation is carried out by the evaluation method of “multi medium environmental objective value” introduced from U.S. The results demonstrate that the water of the urban river sections of major cities has been polluted generally by micro organic pollutants, totally 308 kinds of organic substance in 12 categories are checked out, mainly including alkyl, PAH and lipid. In general, the content of micro organic pollutants in fish body is higher than that in bottom material and the pollutants in bottom material are higher than that in water. The pollution in the urban river sections of large medium size comprehensive industry city is relatively serious and the impact on human health and overall ecologic environment is rather significant. All the conditions should arouse the concern from various aspects.
出处
《人民长江》
北大核心
2001年第7期21-22,共2页
Yangtze River
关键词
微量有机物
分布特征
水污染
长江干流
micro organic matter
content level
distribution characteristics
state of water pollution
main urban river stretches
stem stream of Yangtze River
