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While lightning researchers say that a foul sulfury smell is detected after a lightning strike,
they don’t explain the chemical mechanism leading to the production of the sulfidic odorants.
All we can say is that if the UFO generates a corona discharge around its surface, then it could
cause reactions in the air leading to known pungent odors like ozone, NO, and NO2.
Generation of surplus ozone (due to a corona discharge or ultraviolet ray emissions) could
also produce other odorants like formaldehyde. Methane is present in air at high enough levels
(1.0 ppm) to potentially react and create formaldehyde at the required odor threshold level of 0.5
ppm. Ozone could act as the catalyst for these reactions.
While the predominant descriptors were sulfidic, pungent and foul,
other descriptors included metallic, chemical, embalming fluid, camphor, tannic acid, ether,
ozone and ammonia like.
the subject of ufos is hard to talk about,
some kind of rebel against proper grammar or good english?