Generic one-compartment model for uptake of organic chemicals by foliar vegetation.
Generic one-compartment model for uptake of organic chemicals by foliar vegetation.
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DOI：
10.1021/es00009a027
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发表时间：
1995-09
影响因子：
11.4
通讯作者：
S. Trapp;M. Matthies
中科院分区：
文献类型：
--
作者：
S. Trapp;M. Matthies
导出了植物从土壤和空气中吸收有机化学物质进入植物间的微分质量平衡方程。考虑的过程包括土壤吸收、气体沉积、叶片挥发、转化和降解以及生长。提出了一种解析解。需要的化学数据是kow， kaw和反应速率常数。假设环境参数的平均值恒定。植物的特性是典型的草和绿色饲料。对2,3,7,8- tcdd的计算，以及与最近测试的数值四室模型的比较，表明了质量平衡方法的适用性。该方程可被纳入现有的多媒体模型和土壤运移模型，并可用于污染土壤的危害评价。
A differential mass-balance equation for the uptake of organic chemicals into the aerial plant compartment from soil and air is derived. Processes considered are uptake from soil, gaseous deposition, volatilization from leaves, transformation and degradation, and growth. An analytical solution is developed. Chemical data needed are K Ow , K AW , and reaction rate constants. Constant average values for environmental parameters are assumed. Plant properties are typical for grass and green fodder. Calculations for 2,3,7,8-TCDD, and the comparison to a recently tested numerical four-compartment model shows the applicability of the mass-balance approach. The equation could be incorporated into existing multimedia and soil transport models and may be useful for the hazard assessment of contaminated soils.