Data Visualization

Nitrate in groundwater (1992-2012): time series statistics

Data Visualization Created 02 Sep 2014 Last modified 17 Jul 2015

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The tables show statistics for European or country average nutrient concentration time series 1992-2012. Very negative means statistically significant decline at P<0.05, marginally negative means statistically significant decline at 0.05<=P<0.1 (considered as weak trends). Very positive and marginally positive has the same explanation for increasing trends. The Sen slope is the average of the annual change calculated for the time series. The Sen slope in percentage is the average of the annual relative change (compared to the time series mean concentration) calculated for the time series.