Photooxidation-Initiated Aqueous-Phase Formation of Organic Peroxides: Delving into Formation Mechanisms.

Formation of highly oxygenated molecules (HOMs) such as organic peroxides (ROOR, ROOH, and HO) is known to degrade food and organic matter. Gas-phase unimolecular autoxidation and bimolecular RO + HO/RO reactions are prominently renowned mechanisms associated with the formation of peroxides. However, the reaction pathways and conditions favoring the generation of peroxides in the aqueous phase need to be evaluated.

Unexpected electrophiles in the atmosphere - anhydride nucleophile reactions and uptake to biomass burning emissions.

Biomass burning is a significant contributor to atmospheric pollution, its emissions have been found to have adverse impacts on climate and human health. Largely, these impacts are dictated by how the composition of the emissions changes once emitted into the atmosphere. Recently, anhydrides have been identified as a significant fraction of biomass burning emissions, however, little is known about their atmospheric evolution, or their interactions within the burn plume.

Particulate matter emitted from ultrasonic humidifiers-Chemical composition and implication to indoor air.

Household humidification is widely practiced to combat dry indoor air. While the benefits of household humidification are widely perceived, its implications to the indoor air have not been critically appraised. In particular, ultrasonic humidifiers are known to generate fine particulate matter (PM).