Iowa Nitrate Measures (mg/L).
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S1 Table shows the distribution of weighted and unweighted nitrate measures in Iowa public water for the entire study period and for each year (1970–1988). (XLSX)
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2025-06-25
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S1 Table shows the distribution of weighted and unweighted nitrate measures in Iowa public water for the entire study period and for each year (1970–1988). (XLSX)