Dealing with ozone-depleting substances that are already in discrete stocks obviates the need for recovery and collection and to the degree that the stocks consist of virgin material, transportation for destruction is much easier.
已经存在于分散的库存中的臭氧消耗物质无需回收和收集，而且只要这些库存中包含的是未经使用的材料，为销毁而进行的运输也就容易得多。