| 项目编号: | 1656889
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| 项目名称: | Volatile Product Formation and Atmospheric Lifetimes of Biogenic Organic Aerosols |
| 作者: | Tran Nguyen
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| 承担单位: | University of California-Davis
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| 批准年: | 2017
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| 开始日期: | 2017-05-15
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| 结束日期: | 2020-04-30
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| 资助金额: | 404600
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| 资助来源: | US-NSF
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| 项目类别: | Continuing 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: | organic aerosol
; semi-volatile
; biogenic oa
; organic composition
; inorganic composition
; ovoc production
; oxidative lifetime
; volatile organic compound
; oh lifetime
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| 英文摘要: | This project is focused on developing a better understanding of how reactive carbon evolves in the atmosphere. Highly controlled environmental chamber experiments will be conducted to evaluate the aging chemistry of organic aerosol. Experiments will help to determine the extent to which aerosol aging depends on particle characteristics (such as liquid water, inorganic composition, pH, organic composition, and surface area) as well as environmental conditions (such as temperature and relative humidity).
The objectives of the research are to: (1) Quantify the production of oxygenated volatile organic compounds (OVOC) and the oxidative lifetimes from hydroxyl radical (OH)-initiated oxidation of suspended organic aerosol (OA); (2) Characterize how physical, chemical, and environmental parameters affect the OH lifetime and OVOC production of the biogenic OA under investigation; (3) Investigate the difference in mechanism between aqueous OH and heterogeneous OH oxidation; and (4) Study the effects of direct photolysis on OA.
This research will provide important new data inputs and constraints for atmospheric models that simulate reactive carbon in the atmosphere. The results are expected to significantly improve the understanding of how semi-volatiles and particles affect climate, air quality, and health. |
| 资源类型: | 项目
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/90221
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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: | |
Tran Nguyen. Volatile Product Formation and Atmospheric Lifetimes of Biogenic Organic Aerosols. 2017-01-01.
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