The Current Situation of Heavy Metals in Agricultural Soil in Hai Hau, Nam Dinh

Abstract

Research on heavy metal pollution in agricultural soil has drawn much attention in      many Asian countries. The accumulation of heavy metals in farming soil and water farming environments from agricultural activities not only affects the development of crops but more severely affects human health as well as regional fauna through the food chain. This research demonstrated the analysis of the heavy metal content in the agricultural soil environment of Hai Hau, Nam Dinh, including As, Cd, Cr, Cu, Hg, Pb and, Zn in the agricultural land environment of Hai Hau, Nam Dinh province. The results showed that most of the content of these heavy metals is still within the permitted value according to Vietnamese standards for the top soil for agricultural purposes. However, in some monitoring study sites, the highest As content reached 22,557 mg/kg, Hg was 1,063 mg/kg, exceeding the Vietnamese standards of heavy metals in agricultural soil.