Abstract
Geographical and seasonal variations in the concentrations of Al, F and Fe in tap water supplying home haemodialysis units within the administrative area of the Trent Regional Health Authority, have been examined. Aluminium and fluoride were considered for their implications in bone disorders and iron for its competitive binding with aluminium to transferrin in serum. Four different water treatment systems are currently used and the extractive performance of these have been assessed. In general, the current Department of Health and Social Security's (DHSS) guidelines for aluminium in water used to prepare dialysate are met (30 μg/l), but the proposed European Economic Community's (EEC) levels of 10 μg/l, are not. The removal of fluoride and iron from water by the different treatments was comparable to the removal of aluminium. A comparison between old and new equipment highlights the importance of regular monitoring and maintenance.
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