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Table 2. Summary of fathead minnow test results. Forty fish were exposed at each <br /> concentration. An asterisk (*) denotes a statistically significant difference from the <br /> control. <br /> Concentration No. Alive Ave. wt. Min. Max. Sig. <br /> (mg) <br /> Control 40 0.54 0.47 0.61 <br /> 100% 40 0.57 0.49 0.65 <br /> 50% 40 0.58 0.56 0.64 <br /> 25% 40 0.56 0.52 0.62 <br /> 12% 40 0.53 0.51 0.54 <br /> 6% 40 0.56 0.54 0.57 <br />