The effective and ineffective levels of the joint action of 239Pu and gamma radiation according to the change in the ECG indices of dogs

Effective and ineffective levels of the isolated and combined action of inhaled 239Pu and external gamma radiation on dogs were estimated by some changes in the ECG. Specific share of each factor in the combined effect and the quality coefficient of 239Pu were estimated by two criteria of changes in the ECG. The data were extrapolated to man by the most reliable criterion, that is, the decrease in the ECG voltage indicated by the sum of R I, II, III waves.