Average concentrations of elements in Clark County, Arkansas

    Counties page > Al in Conterminous US > Al in south-central US > Averages in Clark County (Calculated from cells in the geochemical grid plotting in this area.)
Element Symbol Mean Std. dev. Minimum Maximum
AluminumAl (wt%)1.1370.3800.4893.062
ArsenicAs (ppm)2.7590.9060.9036.173
CalciumCa (wt%)0.0860.0930.0140.781
CopperCu (ppm)4.2451.1921.3079.548
IronFe (wt%)0.7730.2420.3181.524
MercuryHg (ppm)0.0240.0070.0100.057
MagnesiumMg (wt%)0.0640.0270.0220.181
ManganeseMn (ppm)200.308121.63455.668985.637
SodiumNa (wt%)0.0850.0690.0130.680
PhosphorusP (wt%)0.0120.0040.0050.031
LeadPb (ppm)9.2734.3442.59533.401
SeleniumSe (ppm)0.1650.0410.1000.300
TitaniumTi (wt%)0.2750.0690.1300.513
ZincZn (ppm)15.4224.6257.48237.225

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