. 2017 Sep 12;7:11395. doi: 10.1038/s41598-017-11721-z

Table 1.

Element concentrations per tissue weight (ppm) in human skin and lymph node samples analyzed by ICP-MS.

Donor	Tissue	Location	Al	Cr	Fe	Ni	Cu	Cd	other^#
1	Skin	dorsal	0.92	0.74	64.7	0.59	2.51	0.15	Ti
	LN	left axillary	1.97	0.43	125	0.28	2.98	0.35	Zn, Rb
2	Skin	right leg	7.29	5.54	51.1	2.51	18.8	0.23	Ti
	LN	right inguinal	9.06	22.5	235	10.1	118	1.23	Ti, Mn
3	Skin	right arm	3.39	2.73	84.7	1.61	67.5	0.17	Ti, I
	LN	right axillary	5.08	13.9	221	6.74	28.7	0.28	Ti, Mn, Zn, Rb, I
4	Skin	left arm	15.4	4.07	120	0.45	199	0.52	Ti, Br
	LN	left axillary	4.16	0.67	138	0.30	15.3	146	Ti, Br, Ba, Mn, W, Rb, Hg
Control 1	Skin	proximal	0.75	0.16	35.6	0.08	1.44	0.12	Pb
Control 1	LN	axillary	1.11	0.31	64.4	1.09	12.9	0.47
Control 2	Skin	proximal	0.76	0.60	37.6	0.15	1.41	0.25
Control 2	LN	axillary	0.24	0.14	74.7	0.09	2.48	0.83	Zn, Rb
Literature values	Skin						0.35/0.42^a	0.05/0.02^a
Literature values	Skin						.	.
	LN		2000^c	8.2^c	1800^c	0.28^b 3.7^c	2.94/ 5.89^a 7.6^c	0.24/ 0.20^a 2.5^c

Abbreviations: LN = lymph node. Elements measured (non-specified oxidation states): aluminum (Al), barium (Ba), bromine (Br), cadmium (Cd), chromium (Cr), copper (Cu), iodine (I), iron (Fe), lead (Pd), manganese (Mn), mercury (Hg), nickel (Ni), rubidium (Rb), titanium (Ti), tungsten (W), and zinc (Zn).

^#Non-quantitatively identified elements (elements marked in bold are associated with tattoo pigments).

^aWet basis, average from 21 male/female cadavers²⁴.

^bTissue dry weight, average in hilar lymph nodes from 3 cadavers²⁹.

^cTissue dry weight, average in hilar lymph nodes from 12 male cadavers³².