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Map: Short-Term Trend in Flow-Adjusted Total Nitrogen Concentration, 2004-2013

Over the past decade, one-third of the monitoring sites in the Chesapeake Bay watershed have shown improving flow-adjusted trends in nitrogen concentrations. Between 2004 and 2013: three out of nine sites—including the Patuxent, Potomac and Susquehanna rivers—have shown improving trends for nitrogen concentrations. One site—the Choptank River—has shown degrading trends. Five sites—including the Appomattox, James, Mattaponi, Rappahannock and Pamunkey rivers—have shown minor changes that are not statistically significant.

Author: USGS

Date created: Jan 07 2015 / Download ( 464.42 KB )

Short-Term Trend in Flow-Adjusted Total Nitrogen Concentration, 2004-2013
Keywords: nitrogen, monitoring

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