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Table 4 Levels of Cd and Pb in Soil (mg/kg)

From: Geographic clustering of elevated blood heavy metal levels in pregnant women

  Metal N Mean S.D. Minimum 25th Percentile Median 75th Percentile Maximum
Overall Cd 41 0.19 0.27 0.00 0.06 0.11 0.19 1.58
Pb 41 39.64 53.11 2.03 8.78 19.93 38.72 212.51
Cadmium blood levels <1 Cd 17 0.17 0.15 0.00 0.06 0.14 0.27 0.49
Pb 17 40.32 53.09 2.03 6.89 29.26 39.74 212.51
Cadmium blood levels ≥1 Cd 24 0.21 0.33 0.00 0.06 0.11 0.19 1.58
Pb 24 39.16 54.25 4.38 9.63 16.46 32.66 181.91
Reference [1, 59] Cd - 0.06 - 0.01 - - - 0.70
Pb - 10 - 2 - - - 200
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