한국환경독성학회:학술대회논문집 (Proceedings of the Korea Society of Environmental Toocicology Conference)

환경독성보건학회 (The Korean Society of Environmental Health and Toxicology)
권호 표지

A Single Cell Multimedia Fate Model for Endocrine Disrupting Chemicals

  • Park, Kyunghee (National Institute of Environmental Research) ;
  • Junheon Youn (National Institute of Environmental Research) ;
  • Daeil Kang (National Institute of Environmental Research) ;
  • Lee, Choong (National Institute of Environmental Research) ;
  • Lee, Dongsoo (Seoul National University) ;
  • Jaeryoung Oh (Korea Ocean Research ＆ Development Institute) ;
  • Sunghwan Jeon (National Institute of Environmental Research) ;
  • Jingyun Na (National Institute of Environmental Research)
  • 발행 : 2003.05.01
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초록

To understand environmental paths of the transport and accumulation of endocrine disrupting chemicals (EDCs), a single cell multimedia fate model has been constructed and evaluated. The EDCs of concern were PAHs, Organochlorine Pesticides (OCPs), PCBs, Alkyl phenols, and phthalates. An evaluation model was designed for the multimedia distribution, including air, water, soil, sediment and vegetation. This model was verified using reported values and via monitoring data. Based on collected data, the distribution trends of EDCs with respect to environmental media were analyzed. Those results have applied to the model for the prediction of the spatial and temporal distribution of EDCs in Seoul. Especially, phenol compound, phthalates, PAHs, PCBs and organochlorine pesticides were estimated and the model was verified. This model was successfully conducted to environmental media, such as air (vapor and suspended particles), soils (forest soil, bare soil, and cement-concrete covered soil), water (dissolved and suspended solids), sediment, trees (deciduous and coniferous). The discrepancies between the model prediction and the measured data are approximately within or near a factor of 10 for the PAHs of three rings through that of six rings, implying that multimedia distribution of the PAHs could be predicted with a factor of 10. Concerning about the air equilibrium may be assumed, a fugacity at steady state is similar in all environmental media. Considering the uncertainties of this model, the use of equilibrium models may be sufficient for assessing chemical fates. In this study, a suggestion was made that modeling and estimation of chemicals in environmental multimedia be rigorously evaluated using the measured flux data. In addition, these data should be obtained, for example, from the precise and standardized inventory of the target chemicals. The model (EDC Seoul) will be refined in an on-going research effort and will be used to support decision-making concerning the management of EDCs.

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