van Wesenbeeck Ian, Driver Jeffrey, Ross John
DowAgroSciences LLC, Indianapolis, IN 46268, USA.
Bull Environ Contam Toxicol. 2008 Apr;80(4):315-8. doi: 10.1007/s00128-008-9380-2. Epub 2008 Mar 18.
Volatilization of chemicals can be an important form of dissipation in the environment. Rates of evaporative losses from plant and soil surfaces are useful for estimating the potential for food-related dietary residues and operator and bystander exposure, and can be used as source functions for screening models that predict off-site movement of volatile materials. A regression of evaporation on vapor pressure from three datasets containing 82 pesticidal active ingredients and co-formulants, ranging in vapor pressure from 0.0001 to >30,000 Pa was developed for this purpose with a regression correlation coefficient of 0.98.
化学品的挥发可能是其在环境中消散的一种重要形式。植物和土壤表面的蒸发损失速率有助于估算与食物相关的膳食残留以及操作人员和旁观者接触的可能性，并且可作为筛选模型的源函数，用于预测挥发性物质的场外迁移。为此，利用三个数据集（包含82种农药活性成分和辅助剂，蒸气压范围为0.0001至>30,000 Pa）建立了蒸发与蒸气压之间的回归关系，回归相关系数为0.98。
