Sentence 1: The pollution tolerance value is 6 ( on scale 0 -- 10 ; 0 is the worst water quality , 10 is the best water quality ) .
Sentence 2: Pollution - tolerance value is 6 ( on scale 0 -- 10 ; 0 the best water quality , 10 is the worst water quality ) .
Question: Do Sentence 1 and Sentence 2 express the same meaning? Yes or No?