Average concentrations of elements in Okeechobee County, Florida

Element	Symbol	Mean	Std. dev.	Minimum	Maximum
Aluminum	Al (wt%)	0.192	0.154	0.023	1.078
Arsenic	As (ppm)	0.720	0.183	0.308	1.494
Calcium	Ca (wt%)	0.243	0.356	0.015	3.412
Copper	Cu (ppm)	2.728	2.479	1.052	22.278
Iron	Fe (wt%)	0.070	0.060	0.008	0.403
Mercury	Hg (ppm)	0.012	0.004	0.010	0.034
Magnesium	Mg (wt%)	0.011	0.009	0.003	0.059
Manganese	Mn (ppm)	15.857	9.259	2.983	53.367
Sodium	Na (wt%)	0.011	0.009	0.003	0.053
Phosphorus	P (wt%)	0.009	0.006	0.003	0.034
Lead	Pb (ppm)	4.834	1.974	2.144	11.823
Selenium	Se (ppm)	0.162	0.077	0.100	0.542
Titanium	Ti (wt%)	0.173	0.053	0.069	0.358
Zinc	Zn (ppm)	6.056	6.230	1.139	66.860