Average concentrations of elements in Saint Francis County, Arkansas

    Counties page > P in Conterminous US > P in southeastern US > Averages in Saint Francis County (Calculated from cells in the geochemical grid plotting in this area.)
Element Symbol Mean Std. dev. Minimum Maximum
AluminumAl (wt%)5.1781.1133.5727.401
ArsenicAs (ppm)7.9221.4855.43411.988
CalciumCa (wt%)0.4320.1300.1850.640
CopperCu (ppm)17.3755.9278.71031.111
IronFe (wt%)2.0190.6581.1923.416
MercuryHg (ppm)0.0410.0070.0260.061
MagnesiumMg (wt%)0.4230.1920.1720.863
ManganeseMn (ppm)731.739124.315499.2661118.970
SodiumNa (wt%)0.7580.1030.5081.011
PhosphorusP (wt%)0.0580.0160.0300.094
LeadPb (ppm)19.0773.56113.00826.781
SeleniumSe (ppm)0.3480.1370.1010.639
TitaniumTi (wt%)0.3050.0200.2580.364
ZincZn (ppm)68.82823.41534.064105.162

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