Average concentrations of elements in Clarke County, Iowa

    Counties page > Zn in Conterminous US > Zn in central US > Averages in Clarke County (Calculated from cells in the geochemical grid plotting in this area.)
Element Symbol Mean Std. dev. Minimum Maximum
AluminumAl (wt%)5.8640.3935.2237.061
ArsenicAs (ppm)9.0510.6267.63610.659
CalciumCa (wt%)0.6450.0840.5400.917
CopperCu (ppm)19.3382.63015.09926.755
IronFe (wt%)2.5170.2822.0443.370
MercuryHg (ppm)0.0420.0090.0280.069
MagnesiumMg (wt%)0.4770.0260.4110.539
ManganeseMn (ppm)626.295119.416390.423920.357
SodiumNa (wt%)0.6670.0560.5080.754
PhosphorusP (wt%)0.0510.0140.0290.091
LeadPb (ppm)20.8602.72215.52930.782
SeleniumSe (ppm)0.5490.0700.3730.696
TitaniumTi (wt%)0.3220.0120.3020.356
ZincZn (ppm)66.5049.10456.091111.142

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