Average concentrations of elements in Madison County, Iowa

    Counties page > Fe in Conterminous US > Fe in central US > Averages in Madison County (Calculated from cells in the geochemical grid plotting in this area.)
Element Symbol Mean Std. dev. Minimum Maximum
AluminumAl (wt%)5.8960.2195.3206.694
ArsenicAs (ppm)11.4461.1378.75915.686
CalciumCa (wt%)0.6530.1160.5041.040
CopperCu (ppm)20.4531.78916.72725.503
IronFe (wt%)2.7000.2061.9783.490
MercuryHg (ppm)0.0390.0060.0280.058
MagnesiumMg (wt%)0.5830.0550.4440.775
ManganeseMn (ppm)935.105143.834629.7971433.580
SodiumNa (wt%)0.7600.0510.6400.875
PhosphorusP (wt%)0.0710.0110.0520.119
LeadPb (ppm)20.6610.83818.26123.714
SeleniumSe (ppm)0.5990.0890.3040.781
TitaniumTi (wt%)0.3160.0080.2980.338
ZincZn (ppm)73.7074.64859.54585.261

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