Risk evaluation of toxic chemicals in the geo-environment by site-specific risk assessment model

Y. Kawabe, J. Hara, Y. Sakamoto, T. Komai

研究成果: Conference contribution

抄録

A risk assessment model which can be evaluated risk levels of toxic chemicals for human beings living in contaminated both onsite and offsite have been developed. The case studies of the risk assessment by using this model were carried out and the exposure rates, the distribution of exposure paths and the risk level of toxic chemicals in the geo-environment were estimated. The main exposure pathways of trichloroethylene (TCE) at the onsite were inhalation air, groundwater intake and crops intake, which indicates that TCE easily volatilize into the air and migrate into the pore water from the soil. The exposure rate of the inhalation air at the offsite was not so high, because the concentration of TCE in the air at the offsite was decreased by the fresh air. However, the exposure rate of the groundwater intake at the offsite had a high risk when no degradation and no adsorption of TCE occurred in the groundwater environment. Considering the adsorption or the degradation of TCE, the risk level from the groundwater intake at the offsite was not so high. To raise the precision of the evaluation, it is very important to obtain these site-specific parameters.

本文言語English
ホスト出版物のタイトルWATER DYANMICS
ホスト出版物のサブタイトル4th International Workshop on Water Dynamics
ページ227-230
ページ数4
DOI
出版ステータスPublished - 2007 5 11
外部発表はい
イベント4th International Workshop on Water Dynamics - Sendai, Japan
継続期間: 2006 11 72006 11 8

出版物シリーズ

名前AIP Conference Proceedings
898
ISSN(印刷版)0094-243X
ISSN(電子版)1551-7616

Other

Other4th International Workshop on Water Dynamics
CountryJapan
CitySendai
Period06/11/706/11/8

ASJC Scopus subject areas

  • Physics and Astronomy(all)

フィンガープリント 「Risk evaluation of toxic chemicals in the geo-environment by site-specific risk assessment model」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル