A total of 52 soil samples of Hohhot City were collected and four heavy
metals and eight organochlorine pesticides were analyzed. The results showed
that Cr, Cu, Zn, and Pb in soil were in range of 20.54 - 48.15 mg/kg, 40.10 - 94.60 mg/kg, 35.14 - 110.48 mg/kg, 38.86g - 245.36 mg/kg, with a mean value of 37.24 mg/kg, 60.76 mg/kg, 80.49mg/kg,
and 145.99mg/kg, respectively. The high degree of variation of Pb, Zn, and Cu,
reflected that the heavy metals were mainly
interfered by human factors. The content values of ∑DDTs ranged from
5.01ng/g to 105.08ng/g with a mean of 36.94ng/g,
while the ∑HCHs ranged from 6.52ng/g to
48.65ng/g with an average of 23.29ng/g,
indicated that DDTs were highly used than HCHs in the study area.The
relatively low
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