Secondary organics and atmospheric cloud condensation nuclei production
نویسندگان
چکیده
منابع مشابه
Cloud Condensation Nuclei properties of model and atmospheric HULIS
Humic like substances (HULIS) have been identified as a major fraction of the organic component of atmospheric aerosols. These large multifunctional compounds of both primary and secondary sources are surface active and water soluble. Hence, it is expected that they could affect activation of organic aerosols into cloud droplets. We have compared the activation of aerosols containing atmospheri...
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Aliphatic amines can form secondary aerosol via oxidation with atmospheric radicals (e.g., hydroxyl radical and nitrate radical). The particle can contain both secondary organic aerosol (SOA) and inorganic salts. The ratio of organic to inorganic materials in the particulate phase influences aerosol hygroscopicity and cloud condensation nuclei (CCN) activity. SOA formed from trimethylamine (TMA...
متن کاملOrganic acids as cloud condensation nuclei
Organic acids as cloud condensation nuclei: Laboratory studies of highly soluble and insoluble species P. Pradeep Kumar , K. Broekhuizen, and J. P. D. Abbatt Department of Chemistry, University of Toronto, Toronto, Ontario, M5S 3H6, Canada Permanent address: Department of Physics, University of Pune, Pune 411007, India Received: 20 December 2002 – Accepted: 4 February 2003 – Published: 20 Febru...
متن کاملAerosol hygroscopicity and cloud condensation nuclei activity during the ACExp campaign: implications for cloud condensation nuclei parameterization
Aerosol hygroscopicity and cloud condensation nuclei (CCN) activity under background conditions and during pollution events are investigated during the AerosolCCN-Cloud Closure Experiment (ACExp) campaign conducted at Xianghe, China in summer 2013. A gradual increase in size-resolved activation ratio (AR) with particle diameter (Dp) suggests that aerosol particles have different hygroscopicitie...
متن کاملAre sesquiterpenes a good source of secondary organic cloud condensation nuclei (CCN)? Revisiting β-caryophyllene CCN
Secondary organic aerosol (SOA) was formed in an environmental reaction chamber from the ozonolysis of β-caryophyllene (β-C) at low concentrations (5 ppb or 20 ppb). Experimental parameters were varied to characterize the effects of hydroxyl radicals, light and the presence of lower molecular weight terpene precursor (isoprene) for β-C SOA formation and cloud condensation nuclei (CCN) character...
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ژورنال
عنوان ژورنال: Journal of Geophysical Research: Atmospheres
سال: 2000
ISSN: 0148-0227
DOI: 10.1029/1999jd901203