Abundant nitrogenous secondary organic aerosol formation accelerated by cloud processing.

ABSTRACT: Nitrogenous organic (CHON), crucial for secondary organic aerosol (SOA), forms through poorly studied mechanisms in clouds. Our study explores CHON transformation during cloud processes (CPs). These processes play a vital role in enhancing the variety of CHONs, leading to the formation of CHONs with oxygen atom counts ranging from 1 to 10 and double bond equivalent (DBE) values spanning from 2 to 10. We proposed that the CHONs formed during CPs are formed through aqueous phase reactions with CHO compound precursors via nucleophilic attacks by NH₃. This scheme can be account for roughly three-quarters of the CHONs by number in cloud water, and near two-thirds of all CHONs are formed through reactions between NH₃ and carbonyl-containing biogenic volatile organic compoun

SUBMITTER: Liu Z 

PROVIDER: S-EPMC10665807 | biostudies-literature | 2023 Nov

REPOSITORIES: biostudies-literature