. Author manuscript; available in PMC: 2019 Feb 26.

Published in final edited form as: Toxicology. 2018 Jul 25;409:24–32. doi: 10.1016/j.tox.2018.07.007

Table 3.

Total and means ± standard error () tumor number in A/J mice across each of the individual lung lobes following GMAW-MS fume or air whole-body inhalation exposure 30 weeks post-initiation with MCA or corn oil.

	n	Left	Apical	Cardiac	Diaphragmatic	Azygos
CO/air	29	4 (0.14 ± 0.07)	2 (0.07 ± 0.05)	0	1 (0.03 ± 0.03)	1 (0.03 ± 0.03)
CO/GMA-MS	28	3 (0.12 ± 0.06)	0	0	1 (0.04 ± 0.04)	1 (0.04 ± 0.04)
MCA/air	29	81 (2.79 ± 0.32)^**	28 (0.97 ± 0.16)^**	37 (1.28 ± 0.24)^**	67 (2.31 ± 0.29)^**	29 (1.00 ± 0.16)^**
MCA/GMA-MS	28	226 (8.07 ± 0.74)^*	77 (2.75 ± 0.31)^*	77 (2.75 ± 0.36)^*	187 (6.68 ± 0.48)^*	45 (1.61 ± 0.28)^{^}

Abbreviations: CO- corn oil; GMAW-MS- gas metal arc welding – mild steel; MCA-3-methylchloanthrene.

p < 0.0001 - compared to MCA/air

^**

p < 0.0001 - compared to CO/air

^{^}

p < 0.04 - compared to MCA/air.