Average concentrations of elements in Hempstead County, Arkansas

    Counties page > Mn in Conterminous US > Mn in south-central US > Averages in Hempstead County (Calculated from cells in the geochemical grid plotting in this area.)
Element Symbol Mean Std. dev. Minimum Maximum
AluminumAl (wt%)2.3290.8420.6804.550
ArsenicAs (ppm)5.2762.3681.52212.142
CalciumCa (wt%)1.3161.8720.0249.866
CopperCu (ppm)8.0213.2602.02619.618
IronFe (wt%)1.5280.7020.3784.046
MercuryHg (ppm)0.0270.0260.0100.165
MagnesiumMg (wt%)0.1820.1000.0310.484
ManganeseMn (ppm)434.382194.11372.6481500.640
SodiumNa (wt%)0.1310.0580.0230.486
PhosphorusP (wt%)0.0240.0100.0050.060
LeadPb (ppm)14.6454.0276.10829.245
SeleniumSe (ppm)0.2840.1200.1010.961
TitaniumTi (wt%)0.3590.0750.1950.711
ZincZn (ppm)29.6549.95812.12155.453

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