Fig. 5From: An often-overestimated ecological risk of copper in Chinese surface water: bioavailable fraction determined by multiple linear regression of water quality parametersECD and SSD curves of Cu in surface water of China under different water quality parameter conditions: a standard water quality parameter condition compared with without considering water quality parameters; and b standard water quality parameter condition compared with considering different water quality parameter values. ECD = environmental exposure concentration. SSD = species sensitivity distributionBack to article page