烟雾 smog;

空气污染指数 air pollution index;

橙色预警 orange alert;

悬浮颗粒物 airborne particulate matter;

可吸入颗粒物 inhalable particle;

有毒物质 toxic substance;

空气质量检测 air quality monitoring;

实时发布PM2.5数据 release real-time PM2.5 data

有害空气污染物 hazardous airborne pollutant;

污浊的空气 foul air;

连续多日烟雾 consecutive smoggy days;

防尘口罩 anti-dust gauze mask;

能见度低 low visibility;

机动车尾气尘 vehicle exhaust;

工业化 industrialization;

乘客滞留 passengers stranded;

追尾 rear-end collision