Days after treatment HCH isomers recovered (μg) ± SD*
Control soil (without SMS) Control soil (with SMS) Soil (without SMS) Soil (with SMS)
α-HCH β-HCH γ-HCH δ-HCH α-HCH β-HCH γ-HCH δ-HCH
0 ND ND 98.36 ± 7.51 100.23 ± 6.58 97.86 ± 5.24 100.22 ± 5.88 98.62 ± 4.56 100.53 ± 6.85 98.62 ± 4.78 101.30 ± 5.96
10 ND ND 97.24 ± 5.54 99.48 ± 6.14 97.33 ± 5.13 100.05 ± 5.73 96.90 ± 4.27 98.74 ± 4.78 97.32 ± 4.59 100.06 ± 5.76
20 ND ND 97.02 ± 5.26 97.71 ± 5.29 96.13 ± 4.76 99.25 ± 4.62 92.73 ± 3.28 95.34 ± 4.29 84.72 ± 4.52 98.62 ± 5.65
30 ND ND 96.38 ± 4.63 97.14 ± 5.10 95.72 ± 4.20 98.34 ± 4.28 90.04 ± 3.06 90.51 ± 3.82 71.38 ± 3.31 89.37 ± 5.43
40 ND ND 95.92 ± 4.21 96.28 ± 4.45 93.85 ± 3.48 97.65 ± 3.72 80.26 ± 2.78 88.38 ± 3.67 58.56 ± 3.26 85.25 ± 4.39
50 ND ND 95.23 ± 3.27 95.87 ± 4.16 92.34 ± 3.25 96.28 ± 3.63 75.40 ± 2.60 80.86 ± 3.45 44.85 ± 2.83 76.33 ± 2.72
60 ND ND 92.60 ± 3.20 94.76 ± 2.86 91.22 ± 2.56 94.08 ± 3.12 67.63 ± 2.48 70.18 ± 2.92 33.27 ± 2.76 62.75 ± 2.65
*Average of 5 replicates ± SD; ND: Not Detected.
Table 4: Degradation of HCH isomers in soil amended with spent mushroom substrate of Pleurotus florida (second study).