The ethnographer provides details of the source of this image (Tane Ward of Equilibrio Norte). The composition shows the contradiction behind Austin's reputation as "the best place to live", which seems to be hand in hand with a gentrification process.
The image is a collected one (advertisement) of a city combined a graph prepared to illustrate the racial demographics of a city. The scale of attention is broad, but I cannot help feeling that it is so broad the ties to toxicity become vague. Nonetheless, the composition does provide an opportunity to think about how race, urban placemaking, and a liveability discourse are constructed. So, the comparative nature of the image is generative, so the composition works. Unfortunately, I had trouble finding any representational, compositional, aesthetic impetus that would produce reflection about toxicity and pollution.