in contrast to the later images in this series, this one has a dull uniformity to it that I read as sick, but for all I know this is what "healthy" soil is supposed to look like when analyzed in this way. Or it could be that whatever the agrotoxin is, it's evident in the dark blob just outside the blank center (some substance that did not move in the analysis) or in the ring toward the outer edge (a substance that moved the furthest in the analysis). In contrast to the other (prettier) images that are patterned uniformly over the entire circular area, this one is the only one with inner/outer differentiation
I want to know who is the chromatographer? How did she learn how to make these images through this process, and why? Does she teach people in turn? Who are these images intended to be seen and read by?
circle of soil (circle of poison)
the center of a chromatogram (if that's the right word for this) is where a sample is first placed but it becomes a blank spot as it is drawn out radially. toxicity only becomes visible or evident in its downstream, down-time after effects.