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Environmental Sciences Europe
Fig. 6 | Environmental Sciences Europe

Fig. 6

From: Freshwater ecosystems profit from activated carbon-based wastewater treatment across various levels of biological organisation in a short timeframe

Fig. 6

Concentrations (colony-forming units/100 mL) of E. coli, enterococci, and staphylococci in the WWTP effluent. Water samples were taken prior to (red) and after (blue) the upgrade of the WWTP Langwiese. Hatched bars represent concentrations of antibiotic resistant bacteria. Mean values and standard deviations are shown (standard deviations for total number of bacteria only, and not for antibiotic resistant bacteria). Sample sizes for total number of bacteria: prior to upgrade: n = 5 for E. coli and enterococci and n = 3 for staphylococci; after upgrade: n = 8 for E. coli and enterococci and n = 3 for staphylococci; antibiotic resistant E. coli and enterococci were determined in randomly selected isolates (10 each) of samples taken 3 times prior to and 3 times after the WWTP upgrade

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