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AquaTox Research staff routinely conducts reference toxicant tests on a monthly basis to assess the quality of test stocks used in the conductance of toxicity tests with chemical products and environmental samples. Each of the charts presented below reflect results generated over the past approximate 12 to 18 months. Warning limits on each graph represent +/- 2 standard deviations of the mean of the values appearing on each graph. Reference toxicant identity and chart statistics are shown to the left of each graph.

Fathead minnow (48-hr) acute LC50s Reference Toxicant: Sodium Chloride Mean=8,340 mg/L; LCL=7,420; UCL=9,259

Fathead minnow (7-day) cIC25s (dry weight) Reference Toxicant: Sodium Chloride Mean=3,591 mg/L; LCL=2,168; UCL=5,015

Ceriodaphnia dubia (48-hr) acute LC50s Reference Toxicant: Sodium Chloride Mean=1,562 mg/L; LCL=1,071; UCL=2,052

Ceriodaphnia dubia (7-day) IC25s (reproduction) Reference Toxicant: Sodium Chloride Mean=845 mg/L; LCL=274; UCL=1,416