RH - 徐永福课题组

New publication in ACP: Effects of humidity on SOA formation from OH-initiated oxidation of m-xylene

组内消息 2019-02-19

Short Summary: The significantly negative effects of relative humidity (RH) on secondary organic aerosol (SOA) formation from m-xylene under low NOx conditions were observed. The significant RH effects on chemical compositions of SOA are identified, in which highly oxygenated molecules (HOMs) are dominant. Our results show that the decrease of SOA formation under high RH conditions is mainly attributed to the suppression of the formation of oligomers and HOMs.

Zhang, Q., Xu, Y., and Jia, L.: Secondary organic aerosol formation from OH-initiated oxidation of m-xylene: effects of relative humidity on yield and chemical composition, Atmos. Chem. Phys., https://www.atmos-chem-phys.net/19/15007/2019/acp-19-15007-2019.html, 2019.

New publication: Different roles of water in SOA formation

组内消息 2018-06-08

We are pleased to announce that our manuscript about Different roles of water in SOA formation from toluene and isoprene has been published in Atmospheric Chemistry and Physics.
TOT ART

Mechanisms for SOA formation from the O3 and OH oxidation channels of isoprene.
Mechanisms-for-SOA-formation-from-the-O3-and-OH-oxidation-channels-of-isoprene.png

Citation: Jia, L. and Xu, Y. F.: Different roles of water in secondary organic aerosol formation from toluene and isoprene, Atmos. Chem. Phys., 18, 8137-8154, https://doi.org/10.5194/acp-18-8137-2018, 2018.

New publication in ACPD: Insight into roles of water in aerosol formation from isoprene and toluene

组内消息 2017-12-14

Different roles of water in secondary organic aerosol formation from toluene and isoprene
Short Summary: In this work, the opposite effects of relative humidity (RH) on secondary organic aerosol (SOA) formation from toluene and isoprene were observed and have been well explained in terms of various experimental data and model simulations. The increase of SOA from toluene under humid conditions is mainly contributed by aqueous reactions of water soluble products, whereas SOA formation from isoprene-NO2 irradiations is controlled by stable Criegee intermediates that are greatly influenced by water.

https://www.atmos-chem-phys-discuss.net/acp-2017-1064/

Citation: Jia, L. and Xu, Y.: Different roles of water in secondary organic aerosol formation from toluene and isoprene, Atmos. Chem. Phys. Discuss., https://doi.org/10.5194/acp-2017-1064