Average concentration of orthophosphorus in European rivers

Note: The following countries were not included in any trend analysis due to a lack of comparable data (available time series is indicated in brackets): Croatia (2003–2012); Cyprus (2007–2012); Czech Republic (1992–2008); Greece (2000–2004); Hungary (1992–2006); Kosovo* (2008–2012); Malta (no river data reported); Montenegro (no orthophosphate data reported); Portugal (2006–2012); Serbia (2003–2012); Spain (1992–2007) and Turkey (2005–2012). * Kosovo under UNSCR 1244/99 (42); ** data for the Netherlands and Poland is total phosphorus concentration.