Long-Term Trends for Surface Total Phosphorus in the Chesapeake Bay: 1999-2013

Long-Term Trends for Surface Total Phosphorus in the Chesapeake Bay: 1999-2013

Author: Howard Weinberg

Date created: Apr 28, 2015

Long-term trends were computed by state partners using the Seasonal Kendall non-parametric technique for annual data collected from 1999-2013. Highly significant trends are indicated with triangles and possible trends are show with colored circles. Surface total phosphorus concentrations are decreasing/improving significantly at 36 stations, possibly decreasing at 23 stations, increasing/degrading significantly at 2 stations, and possibly increasing at 6 stations.

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Phosphorus