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Figure 1 | Environmental Health

Figure 1

From: Environmental justice implications of arsenic contamination in California’s San Joaquin Valley: a cross-sectional, cluster-design examining exposure and compliance in community drinking water systems

Figure 1

Average arsenic concentration a of community water systems (CWS b,c ) in study sample, (n = 464), 2005–2007. a Estimate based on average of each point-of-entry source’s average concentration; b Sources of data: CDPH Water Quality Monitoring and PICME databases (CDPH 2008a,b); c Approximate location of CWSs are depicted, but not true boundaries. Due to close proximity of some CWSs, map partially covers some CWSs.

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Environmental Health

ISSN: 1476-069X