Effect of exposure of miners to aluminium powder.
'McIntyre Powder' (finely ground aluminium and aluminium oxide) was used as a prophylactic agent against silicotic lung disease between 1944 and 1979 in mines in northern Ontario. To find out whether the practice produced neurotoxic effects a morbidity prevalence study was conducted between 1988 and 1989. There were no significant differences between exposed and non-exposed miners in reported diagnoses of neurological disorder; however, exposed miners performed less well than did unexposed workers on cognitive state examinations; also, the proportion of men with scores in the impaired range was greater in the exposed than non-exposed group. Likelihood of scores in the impaired range increased with duration of exposure. The findings are consistent with putative neurotoxicity of chronic aluminium exposure.[1]References
- Effect of exposure of miners to aluminium powder. Rifat, S.L., Eastwood, M.R., McLachlan, D.R., Corey, P.N. Lancet (1990) [Pubmed]
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