An economic evaluation of the environmental benefits from pesticide reduction
结合物理风险评估与条件价值评估，测算了1983至1998年间安大略省农药使用变化带来的环境效益，发现每户家庭减少外部成本188美元，主要源于高、中风险农药的削减。
Previous studies on the environmental impacts of pesticide use have tended to focus either on measuring damages through changes in relative risks to various environmental categories or examining the trade-off between pesticide use levels and abatement costs. This study uses the physical risk assessment approach combined with contingent valuation survey results on consumers’ willingness to reduce pesticide risk. The reduction in external costs associated with the changes in pesticide use in Ontario agriculture between 1983 and 1998 is U© 188 per household. The environmental benefits are largely due to the reduction in the level of high and moderate-risk pesticides.