Table 1.

Cadmium in cigarette smoke that passed through electrostatic precipitator or Cambridge glass fiber filters, determined using Intense smoking regimen with platinum gauze secondary traps (n=10, one cigarette per trap). Cadmium that passed through primary traps is described as “cadmium breakthrough” for simplicity.

	Cadmium Breakthrough from Electrostatic Precipitator (Rotary)		Cadmium Breakthrough from 92 mm Glass Fiber Filter (Rotary)		Cadmium Breakthrough from 44 mm Glass Fiber Filter (Linear)
	Mass (ng/cigarette)	Percent of TPM Cd	Mass (ng/cigarette)	Percent of TPM Cd	Mass (ng/cigarette)	Percent of TPM Cd
CM6	1.61 ± 0.36	0.91%	34.5 ± 6.7	19.6%	45.1 ± 7.2	25.6%
3R4F	0.44 ± 0.16	0.29%	5.3 ± 0.9	3.5%	20.6 ± 3.5	13.6%
American Spirit Nat.	0.66 ± 0.26	0.33%	45.8 ± 3.7	22.9%	60.8 ± 5.4	30.4%
Camel Tur. Domestic	0.33 ± 0.21	0.26%	7.6 ± 1.6	6.0%	19.5 ± 2.6	15.5%
Carlton White 100	0.32 ± 0.13	0.35%	4.8 ± 0.7	5.2%	14.9 ± 2.1	16.4%
Marlboro 100 (HP)	0.34 ± 0.15	0.22%	7.4 ± 1.0	4.8%	23.1 ± 2.3	15.0%
Newport Green Men.	(< 0.30)	(<0.21%)	6.3 ± 0.8	5.1%	18.5 ± 2.7	14.8%

^*American Spirit Natural is trademark of Santa Fe Natural Tobacco Company, a wholly owned independent subsidiary of Reynolds American. Camel Turkish Domestic Blend is trademark of R.J. Reynolds Tobacco. Carlton is trademark of American Tobacco Company. Marlboro 100 is trademark of Philip Morris USA. Newport menthol is trademark of Lorillard Tobacco Company. CM6 are test pieces produced to CORESTA specifications. 3R4F Research cigarettes are produced by University of Kentucky.