Inequalities in Public Water Arsenic Concentrations in Counties and Community Water Systems across the United States, 2006-2011.

ABSTRACT:

Background

In the United States, nationwide estimates of public drinking water arsenic exposure are not readily available. We used the U.S. Environmental Protection Agency's (EPA) Six-Year Review contaminant occurrence data set to estimate public water arsenic exposure. We compared community water system (CWS) arsenic concentrations during 2006-2008 vs. after 2009-2011, the initial monitoring period for compliance with the U.S. EPA's 10 μg/L arsenic maximum contaminant level (MCL).

Objective

Our objective was to characterize potential inequalities in CWS arsenic exposure over time and across sociodemographic subgroups.

Methods

We estimated 3-y average arsenic concentrations for 36,406 CWSs (98%) and 2,740 counties (87%) and compared differences in means and quantiles

SUBMITTER: Nigra AE 

PROVIDER: S-EPMC7724967 | biostudies-literature | 2020 Dec

REPOSITORIES: biostudies-literature