Table 1: Concentrations (ng/g dw) of OCPs in soil samples in 2003, 2007, and 2009.

VariablesMean ± SD (min–max)
200320072009

HCHs group -HCH0.06 ± 0.14 (nd−0.78)0.02 ± 0.05 (nd−0.27)0.03 ± 0.08 (nd−0.48)
-HCH0.36 ± 0.68 (nd−2.74)0.59 ± 0.94 (nd−4.58)0.69 ± 1.83 (nd−14.34)
-HCH0.06 ± 0.20 (nd−1.41)0.16 ± 0.19 (nd−1.01)0.01 ± 0.03 (nd−0.15)
-HCH0.19 ± 0.61 (nd−3.55)0.07 ± 0.22 (nd−1.53)0.02 ± 0.06 (nd−0.30)
0.66 ± 1.34 (nd−7.33)0.85 ± 1.18 (nd−5.56)0.73 ± 1.92 (nd−14.97)
DDTs groupp,p-DDE4.71 ± 9.42 (nd−52.20)3.88 ± 10.69 (nd−78.07)5.07 ± 11.59 (nd−55.96)
p,p-DDD0.24 ± 0.61 (nd−3.37)0.11 ± 0.33 (nd−1.76)0.73 ± 1.70 (nd−9.71)
o,p-DDT0.84 ± 2.30 (nd−11.71)0.75 ± 1.81 (nd−9.04)0.08 ± 0.47 (nd−3.55)
p,p-DDT3.67 ± 7.75 (nd−33.08)2.98 ± 7.38 (nd−50.73)0.58 ± 1.30 (nd−7.34)
9.46 ± 17.76 (nd−76.01)7.84 ± 17.68 (nd−116.74)6.46 ± 13.28 (nd−64.91)
Reference[16][19]Present study

*nd: the value less than LOD (limits of detection) was set to nd.