Geometric mean perchlorate dose in urine (µg/kg of body weight/day) and 95% confidence intervals in study participants by perchlorate concentration in produce for each participant, Imperial County, California, 2009.

<p>Geometric mean perchlorate dose in urine (µg/kg of body weight/day) and 95% confidence intervals in study participants by perchlorate concentration in produce for each participant, Imperial County, California, 2009.</p

Geometric mean perchlorate dose in urine (µg/kg of body weight/day) and 95% confidence intervals in study participants by total dairy servings, Imperial County, California, 2009.

<p>Geometric mean perchlorate dose in urine (µg/kg of body weight/day) and 95% confidence intervals in study participants by total dairy servings, Imperial County, California, 2009.</p

Participant Characteristics, Imperial County, 2009.

<p>Participant Characteristics, Imperial County, 2009.</p

Map showing the Lower Colorado River from the source of perchlorate contamination in the Las Vegas Wash to the All-American Canal in the Imperial Valley.

<p>Source: U.S. Bureau of Reclamation.</p

Range and Geometric Means of Major Analytes, Imperial County, 2009, compared to NHANES^a.

a<p>Representative data for adult U. S. residents from the National Health and Nutrition Examination Survey, 2001–2002 (Blount et al. 2006; Blount et al. 2007).</p