The factors related to urinary arsenic level of farmers was gender and occupational; females had higher urinary arsenic concentrations than males and farmers had higher urinary arsenic level than household resident with the p-value 0.049 and 0.019, respectively (Table 4). The comparison of arsenic level in soil and water between farmer and household group had no significant. But in farmer group the result showed resident soil has higher arsenic level than farm soil at p-value 0.002