Table 2.

Summary Geochemistry Data for SPM and Source Area Sediments

Source Areas	Statistic	Concentrations (Weight %)
		Al	Ca	Ce	Fe	K	Mg	Na	Ti
SPM	Mean	8.17	22.51	0.0051	8.08	1.43	0.70	0.23	0.47
(n=40)	SD	0.57	1.76	0.0003	0.68	0.09	0.04	0.02	0.03
Channel banks	Mean	6.97	35.47	0.0036	5.04	1.19	0.61	0.19	0.45
(n=30)	SD	2.34	7.65	0.0013	1.65	0.44	0.18	0.06	0.09
Field drains	Mean	6.89	17.50	0.0049	8.21	1.12	0.51	0.26	0.38
(n=30)	SD	2.49	8.23	0.0015	5.14	0.39	0.17	0.09	0.11
Road verges	Mean	10.40	6.63	0.0086	6.12	2.08	1.01	0.48	0.61
(n=30)	SD	0.99	1.32	0.0007	0.48	0.11	0.09	0.05	0.02
Top soils	Mean	14.07	3.97	0.0091	6.93	2.45	0.88	0.41	0.66
(n=30)	SD	1.17	2.00	0.0008	0.62	0.23	0.07	0.04	0.02