摘要
淮河是中国重要的河流之一,其污染物含量、分布对中国的经济发展和生态平衡有着很大的影响。本文通过对淮河淮南-蚌埠段沉积物30个样品的采集,采用高分辨气相色谱质谱仪(GC/M S)对其中U S-EPA优控16种多环芳烃(PAH s)含量进行了测定。在此基础上分析了研究区中PAH s的分布特征及其形成污染源,并对PAH s进行污染物生态风险评价。结果表明研究区沉积物中PAH s含量变化范围较大;主要来源于化石燃料的高温燃烧与裂解,并认为目前淮河淮南-蚌埠段的PAH s潜在生态风险很小。
The Huaihe River is one of the most important rivers in China. The distribution of pollutant in the river will impact on the economic and biological development. The 30 samples were collected from Huainan to Bangbu of the Huaihe river and the polycyclic aromatic hydrocarbons （PAHs） were determined by GC--MS. The distributions of PAHs were discussed, and their ecological risks were assessed. The results showed that the concentration of PAHs had a wide variation range, and the PAHs mainly derived from combustion and pyrolysis of fossil fuels in high temperature. Compared with the corresponding ecological risk assessment guidelines, huainan and bangbu sections of Huaihe River will have low potential ecological risks.
出处
《宿州学院学报》
2007年第6期103-106,135,共5页
Journal of Suzhou University
基金
国家自然科学基金(40273035)
安徽省自然科学基金(03045201)
关键词
淮河
沉积物
多环芳烃
污染性状
生态风险评价
Huaihe River
sediments
PAHs
Pollution Characteristics
ecological risk assessment
