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Table 2

Mean effect concentrations (EC50 values, 48 h immobilization; μmol/L) of dissolved metals on D. magna at water hardness 240 mg/L CaCO3 (Khangarot and Ray, 1989). EC50 for Bi at water hardness 72 mg/L CaCO3 (Okamoto et al., 2015).

As Bi Cr Cu Fe Mn
83 >62 34 1.46 129 151
Ni Pb Sb Sn W Zn
124 17 3478 182 486 8.57

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