Industrial sootanddust pollution is very serious in China, which does harm to people's health.
我国工业烟尘和粉尘污染状况十分严重。
2
Meantime, sootanddust from this week's wildfires is making the air quality especially bad there.
同时，这周的火灾所带来的煤烟和灰尘使那里的空气质量非常之差。
3
Scientists have known for a long time that aerosols such as soot, dustand other small particulate matter, alter cloud density and the radiative balance of the atmosphere.