Concentration maps of NO₃

1984 - 1996

2007 - 2010

Difference NO₃ [2007/2010] - NO₃ [1984/1996]

Amount of NO₃^- in water samples sampled in 1984 - 1996 and 2007 - 2010

Values are given in mg/l. Numbers in plots represent median.

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Map of collected samples

Distribution map of pH, conductivity

Concentration maps: SO₄, Cl, F, Ca, As, Be, Cd, Cu, Pb, Zn