Number of wastewater treatment plants (urban - tertiary treatment of plants) reached 820 in 2013 in Poland, according to Eurostat. This is 0% more than in the previous year.
Historically, Number of Wastewater Treatment Plants (Urban - tertiary treatment of plants) in Poland reached an all time high of 827 in 2011 and an all time low of 75.0 in 1995.
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