Table 5.

Metal concentrations from devices without brass connectors that were manufactured and analyzed in different years. Vuse devices are cartridges with rechargeable batteries, and NJOY devices are single-use (mean ± standard deviation, µg/g).

Brand	Cr	Ni	Cu	Zn	Cd	Sn	Pb
Vuse Menthol 2 years old 2014	0.396 ± 0.138	0.642 ± 0.078	<LRL	<LRL	<LRL	<LRL	<LRL
Vuse Menthol 2017	0.300 ± 0.049	0.409 ± 0.080	<LRL	<LRL	<LRL	<LRL	<LRL
Vuse Original 2 years old 2014	0.243 ± 0.040	0.478 ± 0.045	<LRL	<LRL	<LRL	<LRL	<LRL
Vuse Original 2017	0.057 ± 0.027	0.387 ± 0.114	<LRL	<LRL	<LRL	<LRL	<LRL
NJOY® King Menthol 2016	<LRL	0.148 ± 0.026	<LRL	<LRL	<LRL	0.355 ± 0.087	<LRL
NJOY® King Menthol 2017	<LRL	0.188 ± 0.015	<LRL	<LRL	<LRL	0.119 ± 0.018	<LRL