Prospero said there was a time when scientists did not pay much attention to atmospheric dust. That’s changed.

他说。 Prospero 说， 曾经有一段时间科学家们并没有过多关注大气尘埃。 那改变了。

Depending on the local geology, finely ground quartz, coal, or volcanic ash might enter the air as atmospheric dust, along with pollen and fungal spores.

根据当地的地质情况，精细研磨的石英、煤或火山灰可能会作为大气尘埃与花粉和真菌孢子一起进入空气。