| 项目编号: | 1703019
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| 项目名称: | Collaborative Research: Impact of Aerosol Viscosity, Phase Separation, and Internal Structure on Isoprene-Derived SOA (Secondary Organic Aerosol) Formation |
| 作者: | Andrew Ault
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| 承担单位: | University of Michigan Ann Arbor
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| 批准年: | 2017
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| 开始日期: | 2017-07-01
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| 结束日期: | 2020-06-30
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| 资助金额: | 261204
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| 资助来源: | US-NSF
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| 项目类别: | Standard Grant
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| 国家: | US
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| 语种: | 英语
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| 特色学科分类: | Geosciences - Atmospheric and Geospace Sciences
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| 英文关键词: | secondary organic aerosol
; reactive uptake
; iepox
; phase-separation
; different viscosity
; small organic particle
; formation rate
; iepox-derived soa constituent
; gas phase product
; particle viscosity
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| 英文摘要: | The project strives to minimize the gap between measurements and models that characterize the formation rates, concentrations, and spatial distributions of small organic particles in the atmosphere. Laboratory studies will be conducted in the UNC Environmental Chamber Facility to measure key physicochemical properties of aerosol and gas phase products. The results will be applied to improve models of secondary organic aerosol (SOA) formation to better inform policy decisions about air quality, human health, and climate.
The PIs will test the hypothesis that higher viscosity and phase-separation will suppress the reactive uptake of isoprene epoxydiols (IEPOX). The four objectives of the experimental plan to test this hypothesis include the (1) determination of the reactive uptake of IEPOX as a function of particle viscosity; (2) determination of the reactive uptake of IEPOX on particles with complex morphologies; (3) identification of the molecular composition and physicochemical properties of the IEPOX-derived SOA constituents for different viscosities and morphologies; and (4) characterization of volatile products resulting from reactive uptake chemistry of IEPOX. |
| 资源类型: | 项目
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/89851
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| Appears in Collections: | 全球变化的国际研究计划
科学计划与规划
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| Recommended Citation: | |
Andrew Ault. Collaborative Research: Impact of Aerosol Viscosity, Phase Separation, and Internal Structure on Isoprene-Derived SOA (Secondary Organic Aerosol) Formation. 2017-01-01.
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