Article from 05.03.2018 | Last changed: 26.03.2018
… The 90-percentile values for the three ten-year periods (1986-1995, 1996-2005 and 2006-2015) at LAWA monitoring sites for which data is available for at least five … class II-III, 29 % in class III and 1 measuring site in class III-IV in 2016. Since 2006 there is no 90 percentile of measuring site greater than 20 mg N/l (class IV). … The 90-percentile values for the three ten-year periods (1986-1995, 1996-2005 and 2006-2015) at LAWA monitoring sites for which data is available for at least five …