Toxicity and SOS-response to ELF magnetic fields and nalidixic acid in E. coli cells

► Genotoxic effects of the specific combination of static and ELF-MF, which has been proven to affect chromatin conformation, were investigated. ► ELF-MF did not induce the recA-lacZ fusion-gene product. ► Exposure to ELF-MF did not modify the genotoxic effects of NAL either. ► The data show that ELF-MF, under specific conditions of exposure, acted as a non-toxic but cell-growth stimulating agent.