Analysis of Lead Extraction in Faucets and its Risk Assessment
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Abstract:
In this paper, lead content and lead extraction in faucets were analyzed and exposure of lead in soaking water of faucets was calculated. Lead contents of 39 sampling inspection faucets were tested by SpectroMaxx direct-reading spectrometer with the results of 1.19~6.24%. Lead extraction in faucets was analyzed by the method of HJ/T 411-2007.The results indicated that 13 faucets were unqualified of lead extraction in 28 sampling inspection faucets of cast copper. Sampling unqualified rate was 46.43% and lead content of the unqualified faucets was over 3.00%. It was found that lead pollution of copper and volume of faucets had a great influence on lead extraction of cast faucets. The daily exposure of lead in faucets was calculated using the Crude Point Estimate method and the results showed that the daily lead exposure of the intake in soaking water of faucets was within the reference dose.
