an area of a city that vehicles that produce more than a low level of harmful emissions (= waste gas

中文解释

（有害气体排放超标的车辆必须付费才能进入的）低排放区 There are plans to tackle local air pollution hotspots, through traffic management schemes and low emission zones. 有计划通过交通管理方案和低排放区来解决当地空气重污染点。