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The isotopic composition of atmospheric carbon monoxide

1972; Elsevier BV; Volume: 16; Issue: 2 Linguagem: Inglês

10.1016/0012-821x(72)90183-5

1385-013X

C. M. Stevens, Lloyd Krout, Desmond E. Walling, Adolph Venters, A. Engelkemeir, L.E. Ross,

Atmospheric chemistry and aerosols

The concentration and the carbon and oxygen isotopic composition of atmospheric CO of the northern hemisphere show regular seasonal variations. The isotopic pattern is different from that for CO from automobile engine combustion, whether compared to combustion in the same region as the air sample or to an estimated world average. These results indicate that there are several natural sources, one of which is much greater than anthropogenic emissions. The most likely nature of these sources are discussed and the production rates estimated.