Mackay fugacity models have been applied to Irgarol 1051 discharged in
to a model 'unit world marina'. Atrazine was also modelled to provide
a comparative distribution for another triazine contaminant. Physicoch
emical constants for Irgarol 1051 required for use in the Mackay model
were not available from the Literature and the necessary data were pr
edicted using quantitative structure activity relationship (QSAR) meth
ods. Toxicity predictions for a range of species were also performed f
or both Irgarol 1051 and atrazine.