Average concentrations of elements in Polk County, Nebraska

    Counties page > Al in Conterminous US > Al in central US > Averages in Polk County (Calculated from cells in the geochemical grid plotting in this area.)
Element Symbol Mean Std. dev. Minimum Maximum
AluminumAl (wt%)5.7360.2984.9896.307
ArsenicAs (ppm)6.6841.0574.4199.553
CalciumCa (wt%)1.6131.0150.7334.744
CopperCu (ppm)15.5441.25613.08218.642
IronFe (wt%)2.0010.2551.3962.433
MercuryHg (ppm)0.0240.0050.0110.034
MagnesiumMg (wt%)0.5380.0380.4480.644
ManganeseMn (ppm)396.76755.005268.375529.821
SodiumNa (wt%)0.9530.0440.8821.042
PhosphorusP (wt%)0.0710.0080.0510.085
LeadPb (ppm)22.0943.20716.19831.528
SeleniumSe (ppm)0.6330.1790.4081.172
TitaniumTi (wt%)0.2810.0180.2310.314
ZincZn (ppm)55.8956.99737.80067.794

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