The results show that the orders for the volatile rate of the pesticide in different mediums are methyl-ISP > pyrimyxthion > propachlor> monocarboxoldepyde.

• 研究结果表明,四种农药在不同介质上的挥发速率依次为甲基异柳磷>嘧啶氧磷>克草胺>单甲脒。