The synergy of the combined action of chromium ions (VI) and low frequency alternating electromagnetic field in the induction of nuclear anomalies in the carp erythrocytes

Formation of micronuclei frequency were studied in the carp erythrocytes after 24 hours of exposure a) chromium ions (VI) at concentrations ranging from 0.001 to 0.4 mg/l; b) low-frequency alternating electromagnetic field of an intensity of 25 to 400 A/m, and c) simultaneous exposure to different concentrations of chromium ions and low frequency alternating electromagnetic field intensity of seven levels. The frequency of micronuclei in control was 0.47%. When the fish exposed to chromium ions frequency of micronuclei grew to 0.62%. 24-hour exposure to the electromagnetic field strength of 25 to 400 A/m increased the frequency of micronuclei from 0.48 to 0.63%, respectively. The combined action of two factors caused a weak synergistic effect as a result of which the frequency of anomalies in the combined action of chromium ions and electromagnetic field are greater than the sum frequency anomalies induced by these factors in an isolated impact.