摘要
本文讨论了地下水环境背景值的概念和特征，指出环境背景值具有区域差异性和时间差异性，它是一个随时间渐变的范围值，属于某个区域（环境单元）而不是一个点．总结了已有的环境背景值确定方法及其优缺点，并提出在污染区可采用历时曲线法．为使背景值更可靠，多神方法的相互检验是必要的．
The concept and character of groundwater environment background is discussed in detail. Its regional difference and temporal difference are pointed out. The value of background varies with time within a range and refers to an area instesd of a point. the calculation methods are summarized and a temporal vary analysis method is recommended. It is essential to check the value of background with several methods.
出处
《中国海洋大学学报（自然科学版）》
CAS
CSCD
1994年第S3期16-20,共5页
Periodical of Ocean University of China
关键词
地下水环境背景值
环境单元
区域差异性
时间差异性
历时曲线法
Groundwater environment background
environmental unit
regional difference
temporal difference
temporal vary analysis method
