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. 2019 Feb 12;9:1870. doi: 10.1038/s41598-019-38803-4

Figure 4.

Figure 4

Real-time impedance measurements of corneal epithelial cells, lens epithelial cells, retinal pigment epithelial cells, and Chinese hamster ovary (CHO) cells. Cells were plated at 20,000 cells/well and exposed to stove emissions for one hour. (A) Control (B) Cells exposed to applewood combustion emissions. (C) Cells exposed to coal combustion emissions. Values are expressed in mean ± SEM, with each condition tested (n = 8). Black vertical lines represent the timing and the duration of exposure **P < 0.001.