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Table 4 Nitrate concentration (mean) in piezometers and springs in Rotliegend/Lower Permian (numbers in sample ID indicate the sampling depth in m; 0 = spring)

From: Spring waters as an indicator of nitrate and pesticide pollution of rural watercourses from nonpoint sources: results of repeated monitoring campaigns since the early 2000s in the low mountain landscape of Saarland, Germany

Sample ID Below ground [m] Nitrate [mg/L) % of spring concentration
ra_0 0 24.2  
ra_2 2 0.3 1
rb_0 0 29.4  
rb_1 1 1.1 4
rb_2 2 0.6 2
rc_0 0 48.8  
rc_1 1 0.6 1
rc_2 2 0.3 1
  1. Numbers in sample-ID indicate the sampling depth in m
  2. 0 = spring