摘要
地下水砷污染是影响地区居民身体健康和生活水平提高的重大环境地质问题之一。本文通过实际调查，从地质、地球化学、环境化学入手，系统分析和探讨了内蒙古河套平原地下水砷污染的形成机理。阐述了地下水中砷的来源及其聚集、迁移的地球化学条件。认为高砷地下水的形成，与特定的地质、地形、古地理和地球化学环境的背景有关。聚集于地层中的砷，由于环境的变化，从非游离态转化为游离态，在地下水动力的作用下，进入地下水中。
Arsenic pollution in groundwater is one of the important environment geological problems, which are effecting local people's health and living level.By investigation, on the basis of geology,geochemistry and environmental chemistry, the author systematically analyzed and researched the mechanism of arsenic pollution in the Hetao plain,Inner Mongolia.This paper clarified the origin of arsenic and the geochemical condition in which arsenic was accumulated and migrated.The formation of the groundwater with high arsenic levels can be considered as follows:because of the background of the special geology,topography,palaeogeographic and geochemical environment the this area.That was the change of environment made the arsenic accumalated in strata converted from non-free state to free state arsenic and meanwhile by the action of hydrodynamic forces,so got it into the ground water.
出处
《中国地质灾害与防治学报》
CSCD
1999年第2期25-32,共8页
The Chinese Journal of Geological Hazard and Control
关键词
河套平原
地下水
砷污染
水质污染
Hetao plain groundwater arsenic pollution mechanism
