Trapp S
Institute of Environment & Resources, Technical University of Denmark, Kongens Lyngby, Denmark.
SAR QSAR Environ Res. 2007 May-Jun;18(3-4):367-87. doi: 10.1080/10629360701303693.
The current European risk assessment for chemicals considers only tap water, while in reality other beverages play an important role. A good part of beverages are made from fruits, for example apple juice and vine. A mathematical model was developed to predict uptake of neutral organic chemicals from soil and air into fruits. The new fruit tree model considers eight compartments, i.e. two soil compartments, fine roots, thick roots, stem, leaves, fruits, and air. Chemical equilibrium, advective transport in xylem and phloem, diffusive exchange to soil and air and growth dilution are the main processes. The parameterization is for a square-meter of an apple orchard. The model predicts that polar, non-volatile compounds will effectively be transported from soil to fruits, while lipophilic compounds will preferably accumulate from air into fruits. Results from various experiments show no disagreement with the model predictions.
当前欧洲对化学品的风险评估仅考虑自来水，而实际上其他饮料也起着重要作用。很大一部分饮料由水果制成，例如苹果汁和葡萄酒。开发了一个数学模型来预测中性有机化学品从土壤和空气进入水果的吸收情况。新的果树模型考虑了八个隔室，即两个土壤隔室、细根、粗根、茎、叶、果实和空气。化学平衡、木质部和韧皮部中的平流运输、与土壤和空气的扩散交换以及生长稀释是主要过程。参数化针对的是一平方米的苹果园。该模型预测，极性、非挥发性化合物将有效地从土壤运输到果实中，而亲脂性化合物将更倾向于从空气中积累到果实中。各种实验结果与模型预测并无分歧。
