The composition is nicely achieved, however, it would be helpful to have the date of the Census data in it.
I would suggest working on a way to draw into the image a trigger for generating a reflection about toxicity and how some communities are constructed as 'toxic communities' or populations as 'pollutants'. Dorceta Taylor's work might be worth using as a source of inspiration? Or Mary Douglas's work. I don't mean to be negative but I connections vague here.