Funding for this research was provided by:
Environmental Protection Agency (RD-83479801 and RD-83587201)
Received: 28 February 2019
Accepted: 9 August 2019
First Online: 11 September 2019
Ethics approval and consent to participate
: All data derived from human subjects are commercially available data aggregated by ZIP code or census tract and is thus not considered human subjects research.
: All authors approved the manuscript and this submission.
: The authors declare that they have no competing interests.