Validation of Mathematical Modeling Approach to Estimate Site-specific Concentrations of Chemicals in Agricultural and Livestock Products

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  • YOSHIDA Kikuo
    Research Institute of Science for Safety and Sustainability, National Institute of Advanced Industrial Science and Technology
  • TEGUCHI Naomi
    Research Institute of Science for Safety and Sustainability, National Institute of Advanced Industrial Science and Technology

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Other Title
  • 数理モデルによる農作物と畜産物中の化学物質の地域特異的な濃度推定手法の検証
  • スウリ モデル ニ ヨル ノウサクブツ ト チクサンブツ チュウ ノ カガク ブッシツ ノ チイキ トクイテキ ナ ノウド スイテイ シュホウ ノ ケンショウ

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Abstract

Lately, human health risks of chemicals are assessed in Japan. However, due to limited information regarding hazard and exposure for a large number of chemicals, only a limited number of them have been assessed to date. Existing exposure assessment procedure based on monitoring data is not applicable to many chemicals. We, therefore, developed a mathematical modeling approach to estimate site-specific concentrations of hydrophobic and low volatile chemicals in respective agricultural and livestock products based on uniquely-derived concentration correction factors and geographic information system analysis. The estimated site-specific concentrations of Di (2-ethylhexyl) phthalate (DEHP) in 3 types of agricultural products and 3 types of livestock products were in good agreement with those measured within a factor of 8. These results suggested that the developed modeling approach is applicable for estimating site-specific concentrations of hydrophobic chemicals in respective agricultural and livestock products appropriately.

Journal

  • ENVIRONMENTAL SCIENCE

    ENVIRONMENTAL SCIENCE 22 (5), 317-328, 2009

    SOCIETY OF ENVIRONMENTAL SCIENCE, JAPAN

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