U.S. Geological Survey Scientific Investigations Series 2009-5268
Trends in Water Quality in the Southeastern United States, 1973–2005
/ Title Page / Foreword / List of Tables / List of Figures / Conversions / Introduction / Previous Studies / Data / Methods / Water-Quality Trends / Trend Associations / Summary and Conclusions / References /
Figure 3. Trends in specific conductance at selected National Water Information System sites in the Southeast. Only sites with detected trends are shown. The uncensored seasonal Kendall test was used in all cases.
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