The results of particulate matters level and heavy metal concentration, which surveyed in Gwang-Yang, Dang-Jin steel industry area, are as follows; The $PM_{2.5}$, $PM_{10}$ of exposure area are $22.3{mu}g/m^3$, $40.4{mu}g/m^3$ each in Kum-Ho dong, and $28.1{mu}g/m^3$, 51.5 each in Jung dong. The $PM_{2.5}$, $PM_{10}$ of control area are $16.4{mu}g/m^3$, $29.5{mu}g/m^3$ each in Bonggang-myeon. The level is higher in exposure area than control area. In case of Dang Jin, the concentration of $PM_{10}$ and $PM_{2.5}$ is higher in exposure area than control area ($PM_{2.5}-20.4{mu}g/m^3$, $PM_{10}-39.2{mu}g/m^3$). The Pb level of Dang Jin area is higher in exposure area ($0.13{mu}g/m^3$) than control area ($0.1{mu}g/m^3$) and both Gwang-Yang and Dang-Jin area lower level than the Guideline level of Korea EPA.