The objectives of this study were to evaluate effects of a demolition engineering method that fits the environmental standards, and to promote environmental awareness by indicating the characteristics of dust formation as well as the waste water and soil pollution levels in demolition sites, to address the country′s pollution problems and the related civil petitions. The dust compound was measured using the light-scattering method, considering the wind direction and speed, and composite soil and wastewater samples were collected from each demolition site and were analyzed using the Korean standard method. The factors that influenced the most the amount of dust that was formed were the surrounding environment of the demolition sites, the applied demolition method, the direction of demolition, and the wind direction at the time of the demolition and of the preparatory steps thereto. The pH range and suspended solid (SS) concentration of the water samples after the explosion were over the limits of the Korean standards of emission and permit because of the lime compound of the rubbles and dust that appeared after the explosive demolition. Moreover, the heavy-material concentrations in the water samples were far below the Korean standards for water preservation, except those of Fe, Mn, Pb, and Hg in the water samples collected from some of the demolition sites, but they did not have harmful effects on the water in the vicinity of the structures that were demolished via explosion. Most of the pollutant compounds that appeared after the demolition did not exceed the limits of the Korean standards for soil preservation, but the concentrations of most of the pollutants in the soil samples increased after the explosive demolition. The analysis list presented herein would be a good reference for finding the status of the environmentally hazardous materials produced in national demolition sites, and it is important to keep monitoring some constituents so that preventive measures against the negative effects of explosive demolition can be established.
explosive demolition, fine dust (PM10), water quality, soil pollution, environmentally hazardous materials