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Hydrologie en chemie van grondwater in de ... - VeldwerkPlaatsen

Hydrologie en chemie van grondwater in de ... - VeldwerkPlaatsen

Hydrologie en chemie van grondwater in de ... - VeldwerkPlaatsen

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Veran<strong>de</strong>r<strong>in</strong>g<strong>en</strong> <strong>in</strong> chem sam<strong>en</strong>stell<strong>in</strong>g ondiepdu<strong>in</strong><strong>grondwater</strong> (bov<strong>en</strong>ste 5 m), laatste 100 jaarKALKRIJKVeran<strong>de</strong>r<strong>in</strong>g tov 1980mg/L 1910 1980 1987 2007 Hoofdoorzak<strong>en</strong>Cl 52 83 68.3 44.5 M<strong>in</strong><strong>de</strong>r zeezout, meer reg<strong>en</strong>SO4 25 69 46.8 18.6 M<strong>in</strong><strong>de</strong>r SO2-emissieNO3 1 26 11.2 6.2 Meer uptake, Hogere grw-spiegelCa 100 121 98.9 94.3HCO3 244 250 250 253 M<strong>in</strong><strong>de</strong>r atm. zuurpH 7.45 7.3 7.12 7.38KALKARMVeran<strong>de</strong>r<strong>in</strong>g tov 1980mg/L 1910 1980 1987 2007 Hoofdoorzak<strong>en</strong>Cl 33 55 74 63 Meer begroei<strong>in</strong>g, m<strong>in</strong><strong>de</strong>r zeezoutSO4 14 39 32.9 19.3 M<strong>in</strong><strong>de</strong>r SO2-emissieNO3 1 16 1.2 0.6 Meer uptake, Hogere grw-spiegelCa 9 17 11.7 10.5HCO3 44 24 19 22 M<strong>in</strong><strong>de</strong>r atm. zuurpH 7.0 5.9 5.8 6.050

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