The Effect of Relative Humidity on the Enhancement of New Particle Formation for cis-3-Hexenyl acetate-derived Secondary Organic Aerosol at Atmospherically Relevant Mixing Ratios

Presenter's Name(s)

Austin C. FlueckigerFollow

Conference Year

January 2022

Abstract

It is understood that a significant portion of secondary organic aerosol (SOA) mass in the atmosphere is a direct product of volatile organic compound (VOC) oxidation. Previous studies that explored the new particle formation (NPF) of SOA reported contradictory results regarding the NPF with respect to relative humidity (RH). However, studies from our group indicated that at lower mixing ratios [VOC/ozone], and at 60 % RH, the NPF of α-pinene-derived SOA was significantly enhanced. The purpose of this study is to examine the potential enhancement of NPF from cis-3-hexenyl acetate (CHA)-derived SOA with respect to RH at varying mixing ratios.

Primary Faculty Mentor Name

Giuseppe Petrucci

Status

Graduate

Student College

Graduate College

Program/Major

Chemistry

Primary Research Category

Engineering & Physical Sciences

Abstract only.

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The Effect of Relative Humidity on the Enhancement of New Particle Formation for cis-3-Hexenyl acetate-derived Secondary Organic Aerosol at Atmospherically Relevant Mixing Ratios

It is understood that a significant portion of secondary organic aerosol (SOA) mass in the atmosphere is a direct product of volatile organic compound (VOC) oxidation. Previous studies that explored the new particle formation (NPF) of SOA reported contradictory results regarding the NPF with respect to relative humidity (RH). However, studies from our group indicated that at lower mixing ratios [VOC/ozone], and at 60 % RH, the NPF of α-pinene-derived SOA was significantly enhanced. The purpose of this study is to examine the potential enhancement of NPF from cis-3-hexenyl acetate (CHA)-derived SOA with respect to RH at varying mixing ratios.