Average concentrations of elements in San Francisco County, California

    Counties page > Se in Conterminous US > Se in southwestern US > Averages in San Francisco County (Calculated from cells in the geochemical grid plotting in this area.)
Element Symbol Mean Std. dev. Minimum Maximum
AluminumAl (wt%)4.6450.1874.3794.950
ArsenicAs (ppm)7.3100.9675.7578.797
CalciumCa (wt%)1.1950.0991.0871.400
CopperCu (ppm)62.1069.18644.27976.406
IronFe (wt%)2.8040.1722.5253.105
MercuryHg (ppm)0.7860.1630.4781.041
MagnesiumMg (wt%)0.6560.0360.5920.728
ManganeseMn (ppm)686.31851.561606.003779.944
SodiumNa (wt%)1.7820.0411.7031.846
PhosphorusP (wt%)0.0420.0050.0340.049
LeadPb (ppm)1007.300164.215725.2001237.250
SeleniumSe (ppm)0.2890.0460.2030.358
TitaniumTi (wt%)0.4020.0130.3750.412
ZincZn (ppm)270.90952.184173.950346.001

The values shown above were calculated from observations in nearby areas. No samples lie within San Francisco County, California.