Average concentrations of elements in Polk County, Arkansas

    Counties page > Al in Conterminous US > Al in south-central US > Averages in Polk County (Calculated from cells in the geochemical grid plotting in this area.)
Element Symbol Mean Std. dev. Minimum Maximum
AluminumAl (wt%)3.3190.6241.6554.573
ArsenicAs (ppm)6.5322.0552.22510.088
CalciumCa (wt%)0.0980.0320.0480.258
CopperCu (ppm)14.2536.3504.49134.107
IronFe (wt%)1.9940.5410.8073.291
MercuryHg (ppm)0.0470.0290.0160.166
MagnesiumMg (wt%)0.2520.0580.1110.426
ManganeseMn (ppm)461.161181.384128.4441167.910
SodiumNa (wt%)0.1710.0420.0940.337
PhosphorusP (wt%)0.0330.0110.0130.071
LeadPb (ppm)12.0033.6834.17730.006
SeleniumSe (ppm)0.5800.2200.2141.165
TitaniumTi (wt%)0.2240.0240.1400.272
ZincZn (ppm)67.43333.76719.675258.067

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