山东地质环境中砷的分布特征

Distribution Characteristics of Arsenic in Geological Environment in Shandong Province

摘要:

山东地质环境砷含量一般为 (10 - 6) :各类岩石 4 87～ 7 89,土壤 10 89,水系底泥 6 2 3。根据砷的分布特点。总体上可将山东分为鲁中南—鲁东山地丘陵区、鲁西北—鲁西南平原区 2个大的砷的地质环境 (背景 )区及 7个亚区。每个亚区内 ,山地丘陵区砷的地球化学背景较低 ,而平原区砷的背景相对高些。但总体上 ,全省处于正常的和相对比较低的背景 ,还未发现原生地质环境形成高砷背景对人体危害的案例。

Abstract:

Arsenic content in geological environment in Shandong province is generally as follows(10-6): all kinds of rocks are 4.87～7.89, soil is 10.89, and bed mud is 6.23. According to distribution characteristics of arsenic, Shandong can be divided into 2 large geological environemnt areas with arsenic in middle and south part of Shandong—mountain and breck area in eastern Shandong and 7 subareas. In each subarea, arsenic has a low geochemical background, while in plain area, arsenic has a high background. In general, there is a normal or rather low background in Shandong province, and examples have not been found in Shandong at present which will harm human beings′s health due to high arsenic background. Thus, in order to prevent human beings from the harm of high arsenic, it is very important to strengthen geochemical suvey and study of arsenic and protect geological environment.