Figure 5.

Percentage of DNA damage in Carassius auratus liver exposed to 5% and 10% of 96 hr-LC₅₀ Cr (VI) for four weeks.

Notes: The percentages of DNA damage in control group were 1.6% ± 1.0%, 2.1% ± 1.0%, 1.8% ± 0.9%, and 1.7% ± 1.0%; in 5% of 96h-LC₅₀ exposed fish were 26.3% ± 12.0%, 16.8% ± 9.0%, 11.9% ± 3.0%, and 8.8% ± 2.0%, and in 10% of 96h-LC₅₀ exposed fish were 34.4% ± 10.0%, 25.5% ± 5.0%, 12.2% ± 4.0%, and 4.6% ± 1.0%, for Weeks 1, 2, 3, and 4, respectively. The 10% of 96h-LC₅₀ induced more DNA damage in liver cells. Each point represents a mean value and standard deviation of three replicates. *indicates significantly different from the control according to DUNNETT’s multiple comparison test.