摘要
为了解持久性有机污染物在黄河内蒙段的分布状况,采用固相萃取法和气相色谱法对该段水体样品中的六六六(HCHs)和多氯联苯(PCBs)进行了分析测定。结果表明:HCHs和PCBs在黄河内蒙古段水体中均有检出,HCHs残留水平在63.14～188.65ng/L之间,平均值为146.94ng/L;PCBs的残留水平在0.64～2.25ng/L之间,平均值为1.51ng/L。对污染物的来源进行了解析,HCHs污染的最大贡献源是河套灌区的农业退水,PCBs的主要来源是历史残留。
HCHs and PCBs in water samples taken from the Inner Mongolia section of Yellow River were identified by using solid-phase extraction and chromatography method to determine their distribution over that area.Both HCHs and PCBs were contained in water samples.The HCHs concentration was 63.14～188.65 ng/L,the average of which was 146.94 ng/L.The PCBs concentrations was 0.64～2.25 ng/L,the average was 1.51 ng/L.The main pollutants sources of HCHs was from agriculture waste water of HeTao irrigation district ,while the PCBs was from history residue.
出处
《水资源与水工程学报》
2010年第4期25-27,33,共4页
Journal of Water Resources and Water Engineering
基金
国家自然科学基金项目(50669003)
关键词
六六六
多氯联苯
源解析
黄河内蒙古段
HCHs
PCBs
sources analysis
Inner Mongolia section of Yellow River
