Arsenic contamination in the food chain and its risk assessment of populations residing in the Mekong River basin of Cambodia

► We examined the arsenic exposure from daily food consumption in Cambodia. ► Paddy soil, rice, vegetable and fish were analyzed for total arsenic ([As]tot). ► A positive correlation of the [As]tot in paddy soil and paddy rice was found. ► Daily dose of inorganic arsenic ([As]i) from daily food consumption was estimated. ► Kandal residents are at risk of [As]i intake from their daily food consumption.