Average concentrations of elements in Clackamas County, Oregon

    Counties page > Se in Conterminous US > Se in northwestern US > Averages in Clackamas County (Calculated from cells in the geochemical grid plotting in this area.)
Element Symbol Mean Std. dev. Minimum Maximum
AluminumAl (wt%)8.8980.7916.37110.644
ArsenicAs (ppm)3.8651.9590.93911.184
CalciumCa (wt%)2.0700.6420.6974.048
CopperCu (ppm)30.3687.84215.09153.481
IronFe (wt%)6.5031.6003.62610.922
MercuryHg (ppm)0.0710.0250.0150.158
MagnesiumMg (wt%)1.3770.4800.6183.047
ManganeseMn (ppm)1203.880234.671717.6821909.840
SodiumNa (wt%)1.4630.3640.6332.676
PhosphorusP (wt%)0.0850.0290.0140.254
LeadPb (ppm)12.2203.1127.06225.989
SeleniumSe (ppm)0.2730.1600.1000.896
TitaniumTi (wt%)0.8080.1660.5321.408
ZincZn (ppm)115.28016.80477.695170.457

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