Behavior of Arsenic in hydro geochemical environment A short review

Abstract

Recently, the awareness on the arsenic contamination in the environment including-in water and some agricultural crop has become a one o f most important issues among researchers, intellectuals and even among the general public o f Sri Lanka. Although, the route cause for the arsenic contamination in this context is still not clear, it is an important to take precautionary actions to mitigate the effect o f this environmental problem. However, even it is so important the geohydrochemical behavior of arsenic specially, how arsenic comes to water system and under which conditions it happens, what is the behavior of arsenic and which chemical forms of arsenic is toxic are still not well understood by many of Sri Lankans. Therefore the goal of common questions to which answers are this brief article is to provide a description o f basic processes that affect arsenic occurrence and transport by providing som e basic scien tific information on arsenic geohydrochem ical processes