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Environmental Sciences Europe
Fig. 6 | Environmental Sciences Europe

Fig. 6

From: Fish health in the Nidda as an indicator for ecosystem integrity: a case study for Central European small streams in densely populated areas

Fig. 6

Concentrations of contaminants in fish muscle tissue of caged O. mykiss from the CF and of field-captured B. barbatula from the FF monitoring in spring (FF1) and autumn (FF2) referring to kg dry weight (dw); a sum of indicator PCBs; b HCB; c tonalide; d arsenic; e chromium; f copper; g lead; h nickel and i zinc. The six indicator PCBs include PCB 28, PCB 52, PCB 101, PCB 138, PCB 153 and PCB 180. Concentrations in fish are based on pooled samples of eight individuals

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