The liposoluble pesticides fenvalerate could be adsorbed heavily by soil, so it was difficult to percolate and leach, and difficult to under go water draining and pollute water environment.

• 脂溶性农药氰戊菊酯易被土壤强烈吸附，较难渗滤及被淋洗，不易流失，对水环境污染较轻。