Long-term Characteristics of Heavy Metal Contamination in Highway Roadside Soil and Sediment

고속도로변 토양과 퇴적물의 중금속 장기 오염 특성

  • 이의상 (상명대학교 토목환경공학부) ;
  • 이주광 (한국도로공사 도로교통기술원 재료환경연구그룹)
  • Published : 2007.04.30

Abstract

To study long-term characteristics of the heavy metal contamination, soil and sediment samples were collected at 14 sites in highway roadside during 6 years. The total concentrations of metals including Zn, Ni, Cu. Pb, Cr, Cd, and As in those samples were investigated. The results indicate that concentrations of Zn, Ni, and Cu in highway roadside soils are much higher than the metal concentrations in background soils and appear to be increased gradually. Strong linear relationships between the cumulative traffic and the contents of the metals in highway roadside soils were obtained. Therefore, they might be used to predict the heavy metal concentrations in the future highway roadside soils for establishing the countermeasure of soil and sediment contamination.

Keywords

Roadside soil;Sediment;Long-term characteristics;Heavy metal;Cumulative traffic