<prompt> Translate the following text to EnglishHii ni kwa sababu ya kuchimba kwa uchafu wa hewa, ambayo ni kiasi kikubwa cha uchafu, lakini kwa sababu ya aina ya chembechembe zinazotokana na hewa, ni rahisi sana.  <response>: it you know its it i mean they do generate a lot of soot but that at least you know that kind of particulate comes out of the air pretty quickly 