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Figure 4
Histogram plots of grayscale values on a logarithmic scale of (a) sample N1 and (b) sample B1 obtained from each facility. Note that the grayscales were extracted from the same cropped area in Figs. 5 ![]() ![]() |
Open
access
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Figure 4
Histogram plots of grayscale values on a logarithmic scale of (a) sample N1 and (b) sample B1 obtained from each facility. Note that the grayscales were extracted from the same cropped area in Figs. 5 ![]() ![]() |