<prompt> Translate the following text to EnglishSheria ya anga safi itapunguza uzalishaji wa dioksidi ya sulfuri SO2, oksidi za nitrojeni NO2 na zebaki kutoka kwa vitengo vya kuchoma mafuta kwa karibu 70 kutoka viwango vya sasa.  <response>: The Clear Skies Act would reduce emissions of sulfur dioxide SO2, nitrogen oxides NOx, and mercury from fossil fuel-fired combustion units by approximately 70 from current levels. 