도시지역 다이옥신류의 대기 침적과 토양 및 소나무의 축적 특성에 관한 연구

Abstract

Air pollutants such as PCDD/DFs are generated from Municipal Solid Waste Incineration facilities. They tend to become concentrated in aquatic environment, soil, natural vegetation through complex chemical/physical mechanism. This study has been examined to estimate air cleanup and logical air pollution by PCDD/DFs. These data were collected at atmosphere(4 spot), air deposition(1), natural vegetation(4), soil(4), instead of direct measurement. The concentration of these contaminants in the air ranged from 0.08 to 0.15 pg I-TEQ/m³. The contamination by PCDD/DFs in atmosphere is likely to be similar or slightly low in comparison with the domestic and other country incineration facilities. The concentration of air deposition ranged from 10.5 to 323pg I-TEQ/m²/month. The PCDD/Fs levels showed the highest values in June, while, in August, the values showed the lowest level. The concentration in the pinetree ranged from 3.1 to 5.2 pg I-TEQ/g. This finding seems that it is similar with the level of air PCDD/DFs concentration. The concentration in the soil ranged from 1.47 to 41 pg I-TEQ/m³, and that is lower than the concentration of domestic incineration facilities. These are very low level in comparison with international soil guidelines(1000 pg I-TEQ/m³). The concentration of DLPCBs in the atmosphere ranged from 0.14 to 7.56 ng WHO-TEQ/m³. The level was high in area located near the factory, incineration, roadway. On the other hand, the levels of houses and shopping malls were low because of a car. The concentration in the air deposition ranged from 1.88 to 3.63ng WHO-TEQ/m³. The levels showed the highest values in June, while, in August, the values showed the lowest level. The concentration of the pinetree ranged from 0.8 to 1.05 pg WHO-TEQ/g and there was no the difference of concentration of each spot.