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Map: Chesapeake Bay watershed phosphorus long-term flow-adjusted concentration trends 1985 - 2011

Changes in phosphorus concentrations have been determined for the period 1985-2011 at 31 stream sites in the Chesapeake Bay watershed. Of these, the majority of the flow-adjusted trends were downward, with 22 sites showing decreasing trends, 4 sites showing increasing trends, and 5 sites showing trends that were not statistically significant.

Author: USGS

Date created: Jan 02 2013 / Download ( 961.51 KB )

Chesapeake Bay watershed phosphorus long-term flow-adjusted concentration trends 1985 - 2011
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