Days HCH isomers recovered from soil (μg) ± SD*
Control Control soil Soilwithout SMS Soil with SMS
After treatment soil (with SMS)
  (withoutSMS)   α-HCH β-HCH γ-HCH δ-HCH α-HCH β-HCH γ-HCH δ-HCH
0 ND ND 101.22 ± 5.33 99.71 ± 6.94 101.84 ± 4.83 100.53 ± 3.66 99.43 ± 5.85 99.78 ± 7.34 100.23 ± 4.72 100.75 ± 6.45
10 ND ND 100.86 ± 5.06 99.25 ± 4.22 101.46 ± 4.50 99.86 ± 3.18 97.35 ± 4.74 96.53 ± 6.55 96.66 ± 4.40 99.48 ± 6.11
20 ND ND 100.05 ± 4.75 98.83 ± 3.87 100.33 ± 4.26 99.43 ± 2.71 94.22 ± 4.65 92.74 ± 5.80 84.05 ± 4.26 95.74 ± 5.06
30 ND ND 99.73 ± 3.77 98.58 ± 3.24 99.63 ± 4.12 99.02 ± 2.54 89.73 ± 4.52 88.12 ± 4.53 79.17 ± 3.84 90.60 ± 4.52
40 ND ND 98.55 ± 3.04 97.57 ± 3.08 99.15 ± 3.75 98.74 ± 2.38 82.58 ± 4.08 87.54 ± 4.02 62.54 ± 3.32 88.80 ± 4.10
50 ND ND 96.38 ± 2.65 95.08 ± 2.74 93.36 ± 3.24 95.76 ± 1.94 72.49 ± 3.65 80.26 ± 3.83 45.32 ± 3.16 81.75 ± 3.62
60 ND ND 94.50 ± 2.52 92.77 ± 2.63 90.68 ± 3.04 93.24 ± 1.78 60.83 ± 3.54 62.55 ± 3.64 38.82 ± 2.45 64.16 ± 3.20
*Average of 5 replicates ± SD. ND: Not Detected.
Table 3: Degradation of HCH isomers in soil amended with spent mushroom substrate of Pleurotus florida (first study).