Average concentrations of elements in Rockwall County, Texas

    Counties page > Na in Conterminous US > Na in south-central US > Averages in Rockwall County (Calculated from cells in the geochemical grid plotting in this area.)
Element Symbol Mean Std. dev. Minimum Maximum
AluminumAl (wt%)3.4020.1652.9973.683
ArsenicAs (ppm)7.3941.1885.09810.080
CalciumCa (wt%)9.7274.0453.30418.978
CopperCu (ppm)10.9851.6077.56113.787
IronFe (wt%)1.8100.2521.2602.236
MercuryHg (ppm)0.0100.0010.0100.012
MagnesiumMg (wt%)0.3510.0450.2420.411
ManganeseMn (ppm)1235.030347.044655.0562129.500
SodiumNa (wt%)0.2600.0400.1890.329
PhosphorusP (wt%)0.0420.0100.0240.063
LeadPb (ppm)31.7965.54822.11843.418
SeleniumSe (ppm)0.3400.0850.1860.494
TitaniumTi (wt%)0.2070.0140.1630.230
ZincZn (ppm)39.3325.84026.84247.829

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