Sister-chromatid exchanges in human lymphocytes treated with 4-chloromethylbiphenyl and benzyl chloride.

At non-inhibitory concentrations, 4CMB and BC both induced small, but dose-related increases in SCE. The dose-response curves gave a highly significant correlation for 4CMB (r = 0.996, P less than 0.001) and a significant correlation for BC (r = 0.757, P less than 0.05) which reflects the relative activities of these substances in bacterial mutation tests.