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首页> 外文会议>Guideline on air quality models >Sources of Secondary Organic Aerosols in the Pearl River Delta Region in Fall: Contributions from the Aqueous Reactive Uptake of Dicarbonyls
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Sources of Secondary Organic Aerosols in the Pearl River Delta Region in Fall: Contributions from the Aqueous Reactive Uptake of Dicarbonyls

机译：秋季珠江三角洲地区次级有机气溶胶的来源：来自二羰基化合物的水反应性吸收的贡献

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1) CMAQ model performance enhanced with addition of dicarbonyl SOA source. 2) 75% of total SOA was biogenic for the PRD in fall and isoprene was the most important precursor. 3) The irreversible uptake of dicarbonyls by aqueous particles was an important SOA formation pathway in the PRD in fall. We compared our model findings regarding the SOA sources in the PRD in fall with previous SOA source studies based on measurements in the PRD. Hu et al. found that 80%-90% of summertime SOA in Hong Kong was biogenic, but they found much larger contributions from monoterpenes and P-caryophyllene than from isoprene. This may be due to their samples collected in Hong Kong in summer experiencing stronger emissions of monoterpenes and β-caryophyllene.
机译：1）添加二羰基SOA源可增强CMAQ模型的性能。 2）秋季，总SOA的75％是PRD的生物成因，而异戊二烯是最重要的前体。 3）秋季水珠对二羰基的不可逆吸收是重要的SOA形成途径。我们将关于秋季PRD中SOA来源的模型发现与以前基于PRD中的测量的SOA来源研究进行了比较。 Hu等。他们发现，香港夏季SOA的80％-90％是生物致因的，但他们发现单萜类和P-石竹烯的贡献远大于异戊二烯。这可能是由于他们在夏天在香港采集的样品中单萜和β-石竹烯的排放量增加了。

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