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19 <br />Table 4. Average chemical characteristics of soils from six locatio~LS near <br />the mill site compared with tailings from the Henderson tailing <br />pond. All samples were collected during the sumrer of 1979 and <br />1985. <br /> Soil Tailing <br />Variable (N = 24) (N = 3) <br />(emits) 1979 1985 1979 1985 <br />ph 5.69b1 5.40x1 7.50a S.OOa <br />F7C(mntws/an) 1.12a 0.36b 0.40b 9.10a <br />SAT ($) 46.30a 47.20a 28.SOb 35.90b <br />O.M. ($) 5.28a 3.74a 0.53b 0.93b <br />NOl-N (µq/q) 2.96a <1.00 1.70 1.00 <br />P (µg/q) 31.70a 27.60a 1.OOb 12.SOb <br />R (µg/g) 188.OOa 269.OOa 14.OOb 277.OOa <br />Ca (µg/q) 9.34a 2.15b 2.90b 21.80a <br />M9 (µ9/g) 3.64a 0.78b 0.53b 3.60a <br />Na (µg/q) 0.81a 0.50b 0.53a 66.10a <br />S.A.R. 0.36a 0.41b 0.43a 18.53a <br />Zn (µg/g) 3.32b 2.84b 7.70a 48.50a <br />Fe (µq/q) 248.OOa 152.OOa 23.OOb 40.OOb <br />~ (µ9/g) 119.70a 31.20b 21.60b 336.30a <br />Cu (µg/g) 1.40a 0.81b 1.50a 1.63a <br />Mo (µ9/g) 1.62b 0.05b 91.OOa 2.28a <br />Cd (µq/g) <0.20 0.15a <0.20 0.22a <br />Pb (µg/g) 4.29b 3.05b 39.70a 89.40a <br />As (µq/g) 0.02 0.012 <0.01 <0.001 <br />Se (µ9/g) <0.01 <0.01 <0.01 <0.01 <br /> <br />F (µg/q) 1.04b 0.075b 12.93a 4.29a <br />1Means of soil or tailing samples for each variable within a year followed by <br />a similar letter are not significantly different (p<0.05). A T-test was used <br />to deternrine significant differences between soil and tailing sample;f in <br />1979 and 1985 for each variable measured. Data at detection limits of <br />instruments were not statistiscally analysed. <br />