However,if the health-related air quality objectives are to be met,light duty diesel vehicles such as taxis,and public light buses,will have to switch to cleaner fuels such as liquefied petroleum gas (LPG).

• 不过，要达至符合健康的空气质素指标，轻型柴油车辆如的士和公共小型巴士，必须改用污染量较低的燃料，例如石油气。