Besides being levied on other unhealthy products, such as alcohol and tobacco, duties can also be used to discourage environmentally damaging activities, such as driving petrol- or diesel-powered vehicles.

除了对酒精和烟草等其他不健康产品征收关税外，关税还可用于阻止破坏环境的活动， 例如驾驶汽油或柴油动力车辆。