Atmospheric reaction between Criegee intermediates and water found to be unexpectedly fast

Atmospheric reaction between Criegee intermediates and water found to be unexpectedly fast

Criegee intermediates (CIs)—highly reactive species formed when ozone reacts with alkenes in the atmosphere—play a crucial role in generating hydroxyl radicals (the atmosphere's "cleansing agents") and aerosols that impact climate and air quality. The syn-CH3CHOO is particularly important among these intermediates, accounting for 25%–79% of all CIs depending on the season.

Scientists Uncover Faster Reaction Between Criegee Intermediates and Water

In the constantly dynamic theater of Earth’s atmosphere, where countless chemical reactions sculpt the quality of the air we breathe and influence the global climate, recent breakthroughs have shone a spotlight on a previously underestimated mechanism. Researchers have unveiled an accelerated reaction pathway involving syn-CH3CHOO, a Criegee intermediate, and atmospheric water vapor. This discovery overturns longstanding assumptions about the fa…

Criegee intermediates (CIS) – highly reactive species formed when ozone reacts with alkenes in the atmosphere – play a crucial role in the generation of hydroxyl radicals (the "cleaning agents" of the atmosphere) and aerosols that have an impact on climate and air quality. Synch3CHOO is [...]