The arsenic contaminations in soil showed both of resident group were living in high arsenic contamination area. The farmers had urinary arsenic level higher than household resident group even though arsenic contamination in farm soil was lower than household resident. So, the difference of urinary arsenic level might be from behavior factors such as hygiene and working behavior of farmers. Thus, 43% of farmers had regularly meals in farm and 29.5% of them regularly performed other activities after removed gloves. The farmers more than 50% did not used glasses and 30% of them did not use mask and gloves during farming activities. In addition, 50% of farmers still used damage equipment. The person who working without using personal protective devices (masks, gloves and waterproof clothes) considering that pesticides could be absorbed through the skin and inhaled between the spraying intervals [28]. But the most level score of working behavior was very good and both of hygiene and working behaviors was not correlated to urinary arsenic levels. The possibility of contamination should be come from the PPE of farmers such as shirt, pant, and mask were not appropriate as standard which this study was not evaluate. The pathway of arsenic can be taken into human body via inhalation as arsenic in ambient air, ingestion and skin absorption which absorbed 2% from low water arsenic concentration and 1% from soil [29, 30]. World Health Organization presented that major of residues arsenic in farmland was generated from pesticides using activities [1]. The arsenic contamination in farm soil of this study was lower than resident it may be caused of flooding area. However, both of farmer and household resident groups had urinary arsenic level lower than ACGIH limit value.
There was found slight significance between arsenic contamination of resident soil and urinary arsenic level at p-value 0.062, but all of arsenic level in environment was not correlate with urinary arsenic level of farmer. There was one of the studies which were similar with this study that the correlation of total urinary arsenic with soil arsenic level was weaker and no significant correlations found