Average concentrations of elements in Brooks County, Georgia

Element	Symbol	Mean	Std. dev.	Minimum	Maximum
Aluminum	Al (wt%)	1.291	0.718	0.288	4.109
Arsenic	As (ppm)	2.046	0.765	0.565	5.003
Calcium	Ca (wt%)	0.052	0.053	0.005	0.405
Copper	Cu (ppm)	2.157	2.081	1.015	19.176
Iron	Fe (wt%)	0.550	0.259	0.115	1.658
Mercury	Hg (ppm)	0.012	0.003	0.010	0.027
Magnesium	Mg (wt%)	0.028	0.021	0.004	0.164
Manganese	Mn (ppm)	62.311	18.595	18.710	132.218
Sodium	Na (wt%)	0.003	0.001	0.003	0.009
Phosphorus	P (wt%)	0.021	0.013	0.004	0.080
Lead	Pb (ppm)	12.746	2.547	6.515	21.675
Selenium	Se (ppm)	0.174	0.046	0.104	0.391
Titanium	Ti (wt%)	0.363	0.044	0.230	0.524
Zinc	Zn (ppm)	7.892	2.789	2.255	18.488