雾霾haze;

空气质量检测air quality monitoring;

空气污染指数air pollution index;

悬浮颗粒物airborne particulate matter;

可吸入颗粒物inhalable particle;

烟雾smog;

橙色预警orange alert;

有毒物质toxic substance;

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;

乘客滞留passengers stranded;