Fig. 1

Cytotoxicity of nonylphenol at eight doses to IEC-6 cells with a treatment time of 24 h. Different lowercase letters above the columns indicate that one-way ANOVA of the mean values differs significantly (p < 0.05).
Cytotoxicity of nonylphenol at eight doses to IEC-6 cells with a treatment time of 24 h. Different lowercase letters above the columns indicate that one-way ANOVA of the mean values differs significantly (p < 0.05).