Average concentrations of elements in Johnson County, Iowa

    Counties page > Fe in Conterminous US > Fe in central US > Averages in Johnson County (Calculated from cells in the geochemical grid plotting in this area.)
Element Symbol Mean Std. dev. Minimum Maximum
AluminumAl (wt%)5.5290.2644.6666.389
ArsenicAs (ppm)9.0591.4055.01812.362
CalciumCa (wt%)0.5960.0670.4630.774
CopperCu (ppm)16.9341.71211.71522.131
IronFe (wt%)2.4040.1791.8792.974
MercuryHg (ppm)0.0270.0040.0200.038
MagnesiumMg (wt%)0.4780.0540.3420.643
ManganeseMn (ppm)664.30983.065356.424893.085
SodiumNa (wt%)0.8190.0310.6750.913
PhosphorusP (wt%)0.0520.0100.0340.101
LeadPb (ppm)18.2261.81611.31223.738
SeleniumSe (ppm)0.4350.0580.1990.576
TitaniumTi (wt%)0.3140.0150.2610.351
ZincZn (ppm)63.4415.09242.85974.586

Download point data as CSV