If all pre-Euro and Euro I diesel commercial vehicles are replaced by Euro IV models, the vehicular emissions of RSP and NOx will be reduced by 74% and 38% respectively.

• 如果这些车辆全部更换为欧盟IV期型号，由车辆排放的悬浮粒子和氮氧化物会分别减少74%25 及38%25。