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Table 1 Major element concentrations of environmental samples collected at the vicinity of the gold mines

From: Human health and environmental assessments of small-scale and artisanal mining activities in the Gold City of Ijeshaland, Southwestern Nigeria

  Surface water (N = 19) Groundwater (N = 9) Sediment (N = 10) Fish muscle (N = 4) Fish gills (N = 4) Fish gut (N = 4) Plant (N = 12)
Mean (mg L−1) SD Mean (mg L−1) SD Mean (mg kg−1) SD Mean (µg kg−1) SD Mean (µg kg−1) SD Mean (µg kg−1) SD Mean (mg kg−1) SD
Ca 11.78 4.25 37.30 33.86 0.53 0.69 230.5 343.9 702.0 816.2 116.50 130.6 2.26 2.99
K 6.07 3.30 64.99 66.24 0.07 0.12 34.87 13.67 26.50 21.38 33.32 18.45 1.43 0.51
Mg 5.23 2.78 15.01 14.47 0.38 0.21 10.34 4.96 17.01 14.68 6.80 2.44 0.20 0.07
Na 5.23 5.41 14.40 19.43 0.03 0.02 3.53 7.02 4.03 7.16 5.12 10.21 0.09 0.04
P 0.03 0.04 0.01 0.04 0.03 0.00 136.7 164.2 376.2 396.8 96.77 82.44 0.19 0.03
Si 10.44 3.54 8.67 3.61    4.32 3.72 3.93 4.94 4.34 2.46   
Ti 0.01 0.02 0.01 0.00 2.53 1.43 0.30 0.33 0.16 0.10 0.30 0.23 41.00 41.71
  1. SD standard deviation