Comparative inhalation toxicity of multi-wall carbon nanotubes, graphene, graphite nanoplatelets and low surface carbon black

Table 3 Cytology parameters in BALF after exposure to MWCNT

	Study day 7			Study day 28
Concentration [mg/m³]	0.1	0.5	2.5	0.1	0.5	2.5
Total Cells	1.1	1.4	3.6^**	1.1	1.0	2.1^*
Polymorphonuclear Neutrophils	1.4	72.8^**	436.6^**	4.9	8.8	343.8^**
Lymphocytes	0.9	5.6	41.3^**	1.4	3.9	9.6^**
Macrophages	1.1	0.8	0.3^*	1.1	0.9	1.1

* Statistically significant, p < 0.05; ** statistically significant, p < 0.01.
Differences are expressed as x-fold ratios compared to the concurrent control group.

ISSN: 1743-8977