Funding for this research was provided by:
U.S. Environmental Protection Agency (R835873)
Received: 26 August 2019
Accepted: 7 November 2019
First Online: 21 November 2019
Ethics approval and consent to participate
: Not applicable. The research reported in this manuscript uses public data that are de-identified and not subject to federal regulations on protection of human research subjects.
: Not applicable.
: The authors declare they have no actual or potential competing financial interests.