New tritium and deuterium measurements in atmospheric hydrogen

Tritium and deuterium analysis were made on samples of atmospheric hydrogen collected in 1961. A positive correlation exists between tritium and deuterium. The heaviest samples yield a value of about +18% S.M.O.W. for atmospheric hydrogen. The deuterium concentration of the industrial hydrogen varies from -18% to -22%. The industrial hydrogen is partially ascribed to hydrogen from automobile exhaust gas. The corrected tritium concentration in atmospheric hydrogen continues to increase, doubling every two years. Several large tritium peaks are correlated with Soviet weapons tests. DOI: 10.1111/j.2153-3490.1966.tb00234.x