Figure 5 | Scientific Reports

Figure 5

From: Comparison of the bioavailability of benzo[a]pyrene (B[a]P) in a B[a]P-contaminated soil using the different addition approaches

Figure 5

POD specific activities in earthworms. Control represents treatments without the addition of B[a]P, one-time addition are treatments with the addition of B[a]P at one time, multiple-time addition are treatments with the addition of B[a]P by twelve times. Error bars represent standard deviations. Samples with a common upper-case letter indicate no significant difference among different incubation times under the same treatment (P > 0.05, n = 3), and those with a common lower-case letter indicate no significant difference among different treatments at the same incubation time (P > 0.05, n = 3).

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