Treatment of waste water at Mariehamn waste water treatment plant by year, waste water before/after treatment and amount and content. ÅSUB PxWeb

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year Mandatory

Field for searching for a specific value in the list box. This is examples of values you can search for.1988 , 1989 , 1990 ,

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Selected 0 of total 36

waste water before/after treatment Mandatory

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amount and content Mandatory

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BOD7=the level of organic material