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Environmental Sciences Europe
Fig. 2 | Environmental Sciences Europe

Fig. 2

From: An often-overestimated ecological risk of copper in Chinese surface water: bioavailable fraction determined by multiple linear regression of water quality parameters

Fig. 2

Concentrations of total dissolved Cu in surface water in the 15 regions: Sampling sites and percentage of exceeded the water quality standard (WQS; 10 μg Cu/L) in 15 regions (a); sites numbers of exceeded the WQS in the 15 regions (b); Cumulative probability of concentrations of Cu in Chinese surface water and compared with Chinese WQS, along with the USEPA criteria (c)

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