Phạm Quang Hà (trang 32-38)
Từ khoá: hàm lượng, cadmium, Cd, ô nhiễm, đất
Summary
A study of cadmium content in some main soils of Vietnam and warning of soil cadmium contamination
Soil cadmium contents in traditional rural handicraft production villages and in peri-urban areas are less than 0.5; 0.8mg Cd/kg soil for acrisol and for fluvisols. Cd content in ferralsol is reached of 1mg Cd/kg soil; it is relatively high. This study of Cd content warned an accumulation of Cd in mud and in sludge. High Cd content observed in such materials is an alarm to protect this area and preventing using river or lake city mud for planting food crops such as vegetables for examples.