In Bongsan-ri, which is near the industrial complex, death of plants was reported. However, fluoride odor was not detected in the air or was the compound measurable. As well, water quality measurements were under baseline. However, if airborne, hydrogen fluoride can be deposited by precipitation in soil, groundwater, freshwater and seawater, thus necessitating continuous monitoring. Also, attention should be given to the impact of hydrofluoric acid present on the surface of the soil or plants for agricultural work and intake of the products (5). Avoidance of agricultural works is recommended and protective mask and gloves must be worn if such work is inevitable. In addition, health effects on consumption of residual hydrofluoric acid on grains, fruits and livestock in affected area must be strictly measured, for not only health of local residents, but also to avoid the economic disadvantage incurred by declined sales of affected products.