Translocation of Polychlorinated Biphenyls in Carrot-Soil Systems

Polychlorinated Biphenyl의 작물-토양간 흡수 이행성

  • Lim, Do-Hyung (Department of Bioresources and Food Science, Konkuk University) ;
  • Lim, Da-Som (Department of Bioresources and Food Science, Konkuk University) ;
  • Keum, Young-Soo (Department of Bioresources and Food Science, Konkuk University)
  • 임도형 (건국대학교 생명자원식품공학과) ;
  • 임다솜 (건국대학교 생명자원식품공학과) ;
  • 금영수 (건국대학교 생명자원식품공학과)
  • Received : 2016.06.23
  • Accepted : 2016.08.02
  • Published : 2016.09.30


Polychlorinated biphenyls (PCBs) are ubiquitous environmental contaminants, found in the many environments. PCBs exerts various toxicological effects, including endocrine-disrupting activity. Most researches with these toxicants performed with soil matrix with mixtures of congeners, namely Aroclor, while the biological activities have been tested with animals. However, studies with pure congeners are limited. In this study, 5 congeners were synthesized and their fates (bioaccumulation, degradation, kinetics) were studied in carrot-soil system. The soil half-lives of biphenyl, PCB-1, PCB-3, PCB-77, and PCB-126 were 20.2, 16.0, 11.6, 46.5, 198.0 days, respectively. In general, the longer half-lives were observed with the higher hydrophoicity of PCBs. Times, required for maxium accumulation of PCBs in carrot (Tmax) were 10-20 days for most congeners and the concentrations were 0.4-2.6 mg/kg. The concentrations of PCBs in carrot were kept as constant after Tmax, except PCB-126. The concentration ratio between carrot and soil after 90 days of treatment were 1.7, 8.1, 1.9, 1.8, and 5.9 for biphenyl, PCB-1, PCB-3, PCB-77, and PCB-126. Because of the increase of biomass, the total residual amount of PCBs in carrots however, increased till the end of experiment. The portions of PCB-126 in carrot were 1.1% of the soil residues at 90 days after planting.


Grant : 작물 재배환경 중 유해화학물질의 안전관리기준 설정 연구

Supported by : 농촌진흥청


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