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. 2016 Mar 4;124(7):1042–1049. doi: 10.1289/ehp.1510334

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Ingested nitrate levels (milligrams/day) through drinking water from 18 years of age to 2 years before the interview (A) and diet (B) across study areas. Women with waterborne ingested levels > 44 mg/day (n = 6) or with dietary ingested levels > 476 mg/day (n = 7) were excluded from the graphics. Boxes extend from the 25th to the 75th percentile. Horizontal bars represent the median, whiskers indicate the 10th and 90th percentiles, and outliers are represented as points.