| induction of sister-chromatid exchanges in vicia faba by arsenic-contaminated drinking water. | arsenic-contaminated drinking water from various towns of comarca lagunera, coahuila, mexico, was tested for its ability to induce sister-chromatid exchanges (sce) in vicia faba. 3-h treatments were applied and the differential staining technique of tempelaar et al. (1982) was used. atomic absorption spectrophotometry showed that the arsenic concentration in drinking water was 0.11-0.695 ppm, well over the maximum limit of 0.05 ppm (epa, 1984). in all cases the sce frequencies were significantly ... | 1988 | 3398872 |