Disposable e-cigarette extracts from 8 national and regional
brands constituting 15 unique products were analyzed for heavy
metals by ICP-AES following TCLP and WET. Two of the twenty
three samples of the preliminary survey exceeded the TC limit for
lead. Replicate analysis of four disposable e-cigarettes found that
two products (5 samples) exceeded the TC limit and/or the STLC
for lead; these products represented the same brands as those
demonstrating higher lead leaching in the preliminary survey.
Thus, of the 15 products tested, two exceeded regulatory