The assessment of lead content in water, soil and vegetables grown in farmlands of Dezful county

Water, soil and crops pollution to lead is the result of human activities. This research was conducted with the aim of studying the amount of lead in vegetables, water and soil of farmland in Dezful. 48 vegetable samples (mint and basil), 12 samples of water and 12 soil samples were taken from farmland (south and east) of Dezful during the summer of 2016. Determination of lead element in samples was performed using atomic absorption spectrophotometer. The results showed that mean concentration of lead in basil and mint were 6.85±3.11and 7.3± 8.23 mg kg-1, respectively. Also, Mean concentration of lead in water and soil were 20.64 mg l-1 and 0.49 mg.kg-1, respectively, so that concentration means in basil and mint higher than standard levels (WHO/FAO). The strong correlation between the concentration of heavy metals in vegetables (basil and mint) and their concentration on the water and farmlands soil there which represents the simple transfer of heavy metals from water and soil to vegetables.