Synonyms for individual words can be found below.
«clean»
«air»
«regulations»
Sentences with «clean air regulations»
- Instead, many operators upgraded the plants so that they could keep the exemption and would not have to deal with clean air regulations. (realclimate.org)
- BC and OC amounts decreased strongly in the early 1970s, probably because of clean air regulations in Europe. (giss.nasa.gov)
- The rise in soot levels at Zuoqiupu follows a dip that followed the enacting of clean air regulations in Europe in the 1970s. (giss.nasa.gov)
- (see all
sentences)