Non-pesticidal organotin compunds (notably mono- & di-methyltin, butyltin, & octyltin compounds) are not manufactured in Canada. They are, however, imported, mainly for use as poly(vinyl chloride) (PVC) stabilizers and are also used as industrial catalysts. Data identified for 1984 indicate that approximately 290 tonnes of methyltin compunds, 1020 tonnes of butyltin compounds, and a much smaller quantity of octyltin compounds were imported to Canada. This report concluded that non-pesticidal organotin compounds that were assessed are not volatile and are not expected to contribute to phenomena such as ozone depletion, global warming, or the formation of ground-level ozone. It was pointed out that there is insufficient data to serve as a basis for estimation of the exposure of the population to any of the non-pesticidal organotin compounds.
