humin

例句：

1. 1. The factory is located in a heavily polluted area, causing significant humin emissions.
   这家工厂位于一个污染严重的地区，导致大量烟尘排放。
2. 2.The firefighters were forced to wear respirators to protect themselves from the humin.
   消防员被迫戴上呼吸器来保护自己免受烟尘的伤害。
3. 3.The construction site was closed due to the high levels of humin in the air.
   由于空气中的烟尘浓度过高，施工现场被关闭。