Table 1. Cu concentrations in various concentrations of BLM solution.

Group	Cu (mg/L)
Control	0.0001
BLM (3 μg/mL)	0.0012
BLM (10 μg/mL)	0.0022
BLM (30 μg/mL)	0.0042

Note: BLM was dissolved in dd-H2O at indicated concentrations. Cu concentrations in various concentrations of BLM solution were determined by Flame Atomic Absorption Spectrophotometry.