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