雾霾haze; 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
