Number of wastewater treatment plants (other - primary treatment of plants) reached 324 in 2013 in Poland, according to Eurostat. This is 11.7% less than in the previous year.
Historically, Number of Wastewater Treatment Plants (Other - primary treatment of plants) in Poland reached an all time high of 669 in 1997 and an all time low of 324 in 2013.
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