TREND ANALYSIS OF HEAVY-METAL CONCENTRATION OF THE SUSPENDED MATTER IN THE RIVER DANUBE

被引：0
|
作者：
OERTEL, N
机构：
来源：
WATER SCIENCE AND TECHNOLOGY | 1994年 / 29卷 / 03期
关键词：
HEAVY METALS; SUSPENDED MATTER; RIVER DANUBE; POINT NONPOINT SOURCES; TRENDS;
D O I：
暂无
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
The systematic investigation of heavy metal content in suspended matter is suitable for distinguishing point and non-point sources and for establishing trends of pollution if the dataset is analysed separately, considering the low and high average water discharge periods. At the examined reach of the Danube (at 1669 km) Ag,Cd,Cr,Cu,Ni,Pb and Zn can be considered as constant and/or intermittent pollutants derived from a few point sources of pollution situated upstream. In the late eighties Ag,Cd,Cu,Pb and Zn concentration of suspended matter had been increased mainly in the range of low average water discharge (LWD), which provides evidence for an increase in emission.
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页码：141 / 143
页数：3
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