Average concentrations of elements in Lafayette County, Florida

Element	Symbol	Mean	Std. dev.	Minimum	Maximum
Aluminum	Al (wt%)	0.268	0.112	0.063	0.632
Arsenic	As (ppm)	0.600	0.135	0.308	1.025
Calcium	Ca (wt%)	0.143	0.106	0.014	0.655
Copper	Cu (ppm)	1.845	0.719	1.005	4.594
Iron	Fe (wt%)	0.104	0.036	0.015	0.206
Mercury	Hg (ppm)	0.013	0.004	0.010	0.035
Magnesium	Mg (wt%)	0.013	0.004	0.005	0.022
Manganese	Mn (ppm)	31.031	15.000	11.060	101.367
Sodium	Na (wt%)	0.003	0.001	0.003	0.006
Phosphorus	P (wt%)	0.015	0.005	0.003	0.030
Lead	Pb (ppm)	5.977	2.198	2.108	11.022
Selenium	Se (ppm)	0.123	0.025	0.100	0.229
Titanium	Ti (wt%)	0.209	0.048	0.044	0.355
Zinc	Zn (ppm)	5.260	2.892	1.110	14.045