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["Concentratie nitraat in grondwater kleigrond in mg/L"]
[24.5,25,25.4,28.9,22,24.8,23.7,24.6,25.3,26.3]
[25.1,27,22.9,25.7,24.4,24.6,28.1,25.5,24.1,24.8]
[23.9,24.2,21.4,25.6,24.3,29,26,25.2,24.9,25.1]
[26.1,23.5,24,25.4,25.8,26.4,25.7,24.3,20.399999999999999,26.1]
[30.1,25.3,24.6,24.7,25.2,26.3,23.8,27.1,25,27.5]