Crossword puzzle clue "clean air hurdle"

Here are the possible solutions for clean air hurdle clue

Answer
Clue
Relevancy
smog
Clue
Clean air hurdle
acidrain
Clue
Environmental problem addressed in the Clean Air Act
act
Clue
Clean Air, e.g.
Definition
to do something in a specified way
ecolaw
Clue
Clean-air legislation, e.g.
Clean Air Act, e.g.
epa
Clue
Clean air org.
Clean Air Act org.
Clean-air org.

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