摘要
本文针对地处南水北调东线源头的扬州地区雨水进行了分析,除了测定雨水中含有的重金属和常见元素Pb、Zn、Cu、K、Na、Ca、Mg、NH+4-N外,对雨水样品酸度、温度、固体悬浮物(SS)、化学需氧量(COD)等参数进行了测定分析,结果发现,扬州雨水质量尚好。从沥青屋面雨后积水COD的变化曲线看,降雨开始50min后,COD值基本稳定在—类水质标准之间,110min后符合类水质量标准。
The pH,temperature,solid suspension,chemical oxygen demand （COD）,Pb,Zn,Cu, NH4^＋-N, K,Na,Ca and Mg in rain water of Yangzhou were measured as the normal state compared with other areas in the world. According to the curve of COD against time in roof rain water, the quality meets the water standards requirements between Ⅲ and Ⅳ class after 50min of raining,and is further improved into I class water 110min later.
出处
《光谱实验室》
CAS
CSCD
2006年第2期316-320,共5页
Chinese Journal of Spectroscopy Laboratory
基金
江苏省教育厅项目(SK0410186)
国家自然科学基金项目(49871068
40131020)
关键词
雨水
水质
化学需氧量
扬州.
Rain Water,Water Quality, COD, Yangzhou.
