A Critical Evaluation of Single Extractions from the SMT Program to Determine Trace Element Mobility in Sediments

Table 4

Average, standard deviation, median, minimum, and maximum of the amounts of major and trace metals, the organic carbon (OC) content, and the pH in the 72 sediments investigated in this study.

	Cr	Cu	Zn	Ni	As	Cd	Pb	Co	Mn	K	Fe	Ca	Al	OC	pH
	mg/kg	mg/kg	mg/kg	mg/kg	mg/kg	mg/kg	mg/kg	mg/kg	mg/kg	mg/kg	%	%	%	%
Average	131	65	706	29	80	18	124	7.9	273	12265	6	2	3	6.2	6.7
Stdv	99	71	959	23	92	37	162	5.2	342	7106	5	1	1	4.1	0.8
Median	95	45	442	27	42	9	69	8.0	172	11070	3	2	3	5.3	6.7
Min	28	1	14	3	4	0.1	4	1.3	23	3248	1	0.2	1	0.5	5.3
Max	529	286	5086	117	516	198	756	24.0	2555	46479	23	5	5	19.5	8.1