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. Author manuscript; available in PMC: 2016 Jan 31.
Published in final edited form as: Sci Total Environ. 2014 Jun 26;505:1361–1369. doi: 10.1016/j.scitotenv.2014.06.026

Table 2b.

Comparison of Treatment Group Data to NHANES 2003-2004

Inorganic-Related Arsenic Data (μg/L) Selected Percentiles
Groups Sample Size Geometric Mean 25 50 75 95
NHANES 2557 N/A <LOD 6.0 N/A 18.9
Comparison 5 3.9 2.5 3.6 6.6 7.6
Pre-Post POE Time Period 0 16 13.5 10.7 14.1 16.7
Pre-Post POE Nine-Months 16 7.0 4.3 7.6 12.3
Pre-Post POU Time Period 0 8 30.0 14.2 26.3 50.8
Pre-Post POU Nine-Months 8 6.2 2.3 5.8 16.5