Average concentrations of elements in Craighead County, Arkansas

    Counties page > Fe in Conterminous US > Fe in central US > Averages in Craighead County (Calculated from cells in the geochemical grid plotting in this area.)
Element Symbol Mean Std. dev. Minimum Maximum
AluminumAl (wt%)4.0920.4102.7725.369
ArsenicAs (ppm)6.9772.3223.41613.698
CalciumCa (wt%)0.4340.1400.2240.802
CopperCu (ppm)11.6112.7074.43817.980
IronFe (wt%)1.3670.1681.0521.915
MercuryHg (ppm)0.0320.0050.0200.047
MagnesiumMg (wt%)0.2410.0420.1270.400
ManganeseMn (ppm)432.683155.597152.463965.466
SodiumNa (wt%)0.8340.1770.5211.170
PhosphorusP (wt%)0.0380.0160.0180.093
LeadPb (ppm)16.9932.07112.01523.624
SeleniumSe (ppm)0.3010.0800.1010.543
TitaniumTi (wt%)0.2910.0410.1850.363
ZincZn (ppm)41.0987.73020.80766.579

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