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This illustration is a map of the U.S. showing 2007 WARP model estimates of atrazine concentrations in streams. The colors on the map refer to the estimated maximum 21-day moving-average concentrations (micrograms per liter) of atrazine....
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This illustration is a map of the U.S. showing 2007 WARP model estimates of atrazine concentrations in streams. The colors on the map refer to the estimated maximum 21-day moving-average concentrations (micrograms per liter) of atrazine....
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Fathead minnow...
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Fathead minnow...
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