%0 Journal Article
%T Status, Distribution and Ecological Risk Assessment of Persistent Toxic Substances in Suburban Agricultural Soils in Hohhot City, North China
%A Dekun Hou
%A Rongke Long
%A Deqiang Liu
%A Ruijun Zhao
%A Fujin Zhang
%A Jiang He
%J Journal of Geoscience and Environment Protection
%P 269-289
%@ 2327-4344
%D 2023
%I Scientific Research Publishing
%R 10.4236/gep.2023.115017
%X 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<span><span><span style=\"font-family:;\" \"=\"\"> - </span></span></span><span><span><span style=\"font-family:;\" \"=\"\">48.15 mg/kg, 40.10</span></span></span><span><span><span style=\"font-family:;\" \"=\"\"> - </span></span></span><span><span><span style=\"font-family:;\" \"=\"\">94.60 mg/kg, 35.14</span></span></span><span><span><span style=\"font-family:;\" \"=\"\"> - </span></span></span><span><span><span style=\"font-family:;\" \"=\"\">110.48 mg/kg, 38.86g</span></span></span><span><span><span style=\"font-family:;\" \"=\"\"> - </span></span></span><span><span><span style=\"font-family:;\" \"=\"\">245.36 mg/kg, with a mean value of 37.24 mg/kg, 60.76 mg/kg, 80.49</span></span></span><span><span><span style=\"font-family:;\" \"=\"\"> </span></span></span><span><span><span style=\"font-family:;\" \"=\"\">mg/kg,
and 145.99</span></span></span><span><span><span style=\"font-family:;\" \"=\"\"> </span></span></span><span><span><span style=\"font-family:;\" \"=\"\">mg/kg, respectively. The high degree of variation of Pb, Zn, and Cu,
reflected that the heavy metals <span>were mainly
interfered by human factors. The content values of ¡ÆDDTs</span> ranged from
5.01</span></span></span><span><span><span style=\"font-family:;\" \"=\"\"> </span></span></span><span><span><span style=\"font-family:;\" \"=\"\">ng/g to 105.08</span></span></span><span><span><span style=\"font-family:;\" \"=\"\"> </span></span></span><span><span><span style=\"font-family:;\" \"=\"\">ng/g with a mean of 36.94</span></span></span><span><span><span style=\"font-family:;\" \"=\"\"> </span></span></span><span><span><span style=\"font-family:;\" \"=\"\">ng/g,
while the ¡ÆHCHs ranged from 6.52</span></span></span><span><span><span style=\"font-family:;\" \"=\"\"> </span></span></span><span><span><span style=\"font-family:;\" \"=\"\">ng/g to
48.65</span></span></span><span><span><span style=\"font-family:;\" \"=\"\"> </span></span></span><span><span><span style=\"font-family:;\" \"=\"\">ng/g with an average of 23.29</span></span></span><span><span><span style=\"font-family:;\" \"=\"\"> </span></span></span><span><span><span style=\"font-family:;\" \"=\"\">ng/g,
indicated that DDTs were highly used than HCHs in the study area.</span></span></span><span><span><span style=\"font-family:;\" \"=\"\"> </span></span></span><span><span><span style=\"font-family:;\" \"=\"\">The
relatively low
%K Heavy Metals
%K Organochlorine Pesticides
%K Source Identification
%K Pollution Assessment
%K Index of Geoaccumulation
%U http://www.scirp.org/journal/PaperInformation.aspx?PaperID=125306