The 10th percentile for all species derived from the freshwater acute cadmium toxicity data base was 5.1 mg/L. Acute toxicity values as low as 0.5 mg/L cadmium were reported for rainbow trout. The 10th percentile value for all species in the freshwater chronic toxicity database was 0.4 mg/L. A comparison of the acute and chronic 10th percentile values shows an ACR of approx
The 10th percentile value for all species in saltwater acute cadmium toxicity data set was 31.7 mg/L. This value is six times higher than the 10th percentile value for freshwater acute cadmium. These data suggest that cadmium is much less toxic in salt water than freshwater. Saltwater chronic cadmium toxicity data were very limited (four species). Based on these limited data points, the 10th percentile value was 0.25 mg/L.