Table 4.

Summary of current findings in contemporary STPs and historic values for anthropogenic radionuclides

Radionuclide	Main radioactive emission mode	Proportion of measured STPs in which radionuclide detected	Range in STPs with detectable levels of radionuclide		Historic radioactivity values in tobacco mBq/g dwb	Tobacco type	Country	Date	References
			Radioactivity (mBq/g WWB)	Mass (g/g WWB)
241Am	α	0/73	BLD	BLD	None reported
238Pu	α	4/73	0.4–1.1	7–17 × 10−16	None reported
239Pu	α	7/73	0.3–1.3	1–5 × 10−13	0.396 (1960s)–0.005 (1980s)	Cigarette	Finland	1985	[32]
240Pu	α			1–4 × 10−14
137Cs	β−	0/73	BLD	BLD	0.1–40	Various	Various	1983–2012	[21, 35, 98, 99, 101]
134Cs	β−	0/73	BLD	BLD	None reported
131I	β−	0/73	BLD	BLD	None reported
60Co	β−	0/73	BLD	BLD	None reported

BLD below limit of detection