Table 7. 4,4'-DDT and its breakdown derivative 4,4'-DDE (mg kg-1) under biochar treatments in co-contaminated soil after T = 180 d.
DDE | DDT | DDE:DDT | |
---|---|---|---|
Control Soil | 0.50 ± 0.06a | 3.13 ± 0.26a | 0.16 ± 0.03a |
350°C BC Amended (1%) | 0.45 ± 0.01a | 2.10 ± 0.06b | 0.21 ± 0.00b |
350°C BC Amended (2%) | 0.43 ± 0.01a | 1.72 ± 0.08b | 0.25 ± 0.01b |
550°C BC Amended (1%) | 0.49 ± 0.01a | 2.90 ± 0.32a | 0.17 ± 0.02a |
550°C BC Amended (2%) | 0.47 ± 0.02a | 2.17 ± 0.07b | 0.22 ± 0.01b |
A ratio between DDE:DDT in soil after treatment is also included. Significant errors are listed after the mean with all samples (mean n = 3; ± s.e.). Significant differences are noted by different letters.