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A 12-month study of six residential brass kitchen faucets was conducted to determinetotal and particulate lead and selenium leaching at various stagnation times as well as continuouslong-term simulated residential use at the Portland Water Bureau's Water Quality Laboratory.The faucets were selected to represent varying lead content and included one faucetmanufactured with Envirobrass, a brass alloy with a lead content 0.25%. The maximum initiallead release from the faucets was calculated between 1 ¿¿¿¿¿¿¿¿ 2 g/L in an aggregate 1-L sample,with most faucets having lead release between an even lower 0.1 and 1 g/L. The results alsofound that identical faucet lead release varied by a factor of nearly two and that the Envirobrassfaucet leached lead at very low, though detectable, concentrations. Finally, continuous use of thefaucets for 91 days, to date, found slowly decreasing lead release due to the long-termpassivation of the faucet interiors. Selenium release was found to be low to non-detectable in allsamples from the Envirobrass faucet. Includes 3 references, tables, figures.

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Edition: Vol. - No. Published: 06/01/2006 Number of Pages: 15File Size: 1 file , 400 KB