Average concentrations of elements in Keokuk County, Iowa

    Counties page > Fe in Conterminous US > Fe in central US > Averages in Keokuk County (Calculated from cells in the geochemical grid plotting in this area.)
Element Symbol Mean Std. dev. Minimum Maximum
AluminumAl (wt%)5.3120.1704.7635.897
ArsenicAs (ppm)10.8051.7747.55016.919
CalciumCa (wt%)0.5170.0440.4190.616
CopperCu (ppm)19.1341.96614.30623.518
IronFe (wt%)2.2400.1711.6172.654
MercuryHg (ppm)0.0260.0060.0130.043
MagnesiumMg (wt%)0.4810.0340.3820.575
ManganeseMn (ppm)703.17890.913504.492955.620
SodiumNa (wt%)0.7470.0360.6650.854
PhosphorusP (wt%)0.0720.0170.0390.111
LeadPb (ppm)16.7653.17612.61029.382
SeleniumSe (ppm)0.5470.0980.3040.798
TitaniumTi (wt%)0.2980.0080.2770.315
ZincZn (ppm)70.5837.21557.30686.545

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