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EC number: 231-072-3
CAS number: 7429-90-5
All available studies data were used in a weight of evidence approach to cover this endpoint. Literary studies investigating the effects of aluminum in the aquatic environment have extensively used test solutions with aluminum concentrations above that of its solubility limit. Results of these studies therefore have limited value for the investigation of intrinsic toxicity.
The algae data from the 2009 and 2010 CIMM
datasets demonstrate that elevated pH and elevated DOC are protective
against aluminium toxicity, whereas hardness appeared to have a minimal
evidence of both pH and DOC effects are consistent with the Al BLM. Multiple
linear regression models (MLRM) based on nominal DOC, and pH were
developed to predict nominal EC10 and EC50 values for the algae dataset. The
EC50 and EC10 MLRMs performed reasonably well for the dataset. The
EC50 MLRM produced
an adjusted R2of 0.747, and the EC10 MLRM produce an adjusted
R2of 0.987 (see Figures 220.127.116.11-2, and 18.104.22.168-3,
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