In one study, acrolein concentrations ranged from 26.4 to 64.5 g/m 3 five minutes after frying food in a well-ventilated apartment.[41] Studies measuring indoor air concentrations of acrolein in homes in Canada have found levels ranging from 0.1 to 9.1 g/m 3 .[2,42] Acrolein in outdoor air is generated during the combustion or organic matter and fuels.[2] Motor vehicles contribute the greatest emissions, with an estimated 3,000,000 kg emitted each year in Canada.[4] Additionally, aircraft and off-road vehicles emit acrolein, although the amount is not known.[2] Acrolein may also be generated through industrial processes, including incineration, pulp and paper production, oriented-strand board production, and coal electricity generation, but to a much lesser extent compared to vehicles.[4] Natural sources include forest fires and fermentation, but the estimated amount of acrolein released from these sources is not known
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In the earliest confirmed cases, workers breathed concentrated diacetyl vapors inside a microwave popcorn factory where mixing and heating processes released the compound into the air
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Un traitement dure gnralement de huit 12 semaines, mais il peut tre prolong jusqu six mois si ncessaire
