In most parts of the world, customs agencies are not especially focused on CFC’s, and the compounds are not easy to distinguish from HFC’s without sophisticated analytical equipment. So it is reasonable to assume that the proportion of the total smuggled volume that is discovered is smaller than for narcotic drugs.
在世界大部分地区，海关总署不仅仅要把重点特别放在CFC’s上，还有那些没有精密分析仪器就无法与HFC’s区分的化合物。因此，可以由此推断，已发现的走私量占走私总量的百分比要比毒品走私的百分比小。