Contamination of soils by arsenic (As) results from mining, smelting of sulfide ores, pesticides, timber preservation and As-rich groundwaters. Arsenic contaminated soils, sediments and sludges are major sources of contamination in the food chains and water supplies. The uptake of arsenic (As) by vegetables from contaminated soils presents a health hazard that may affect the use of agricultural land. Contamination of foods by As remains a possible danger under long time consumer.Within the Hunan Province, G...