PHOSPHANE (PH3) IN THE BIOSPHERE

Phosphane is one of the last small molecules whose biogenesis has not yet been elucidated. The first analyses of the PH3 content of the rumen and gut as well as the feces and liquid manure of cattle and pigs, of the feces of man and of the intestinal tract of fish indicate the ubiquitous production of PH3 in the bio- and hydrosphere and that its formation is closely correlated with methane biogenesis. In view of the toxicity of phosphane these results are partiCularly significant; on a humorous note, they may also provide a plausible explanation for ''fire-breathing'' dragons and will-o-the wisp.