Biogenic secondary organic aerosol

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August undefined, 2024

WebApr 13, 2024 · Diurnal variations in primary and secondary organic aerosols in an eastern China coastal city: The impact of land-sea breezes. Zhang, Qiang; Hu, Wei; Ren, ... Impact of biogenic secondary organic aerosol (SOA) loading on the molecular composition of wintertime PM2.5 in urban Tianjin: an insight from Fourier transform ion cyclotron … WebFeb 1, 2024 · Secondary organic aerosol (SOA) yields from the photo-oxidation of α-pinene were investigated in smog chamber (SC) experiments at low (23–29 %) and high (60–69 %) relative humidity (RH ...

NH3 Weakens the Enhancing Effect of SO2 on Biogenic Secondary Organic ...

WebOct 13, 2010 · Secondary organic aerosol (SOA) particles are formed in the atmosphere from condensable oxidation products of anthropogenic and biogenic volatile organic … WebApr 6, 2005 · [1] Organic aerosols in general and secondary organic aerosol (SOA) in particular are known to contribute significantly to the atmospheric population of cloud condensation nuclei (CCN). However, current knowledge is limited with respect to the nature of this contribution. This study presents a series of experiments wherein the potential for … how many days till march 26th 2022

Chemistry of secondary organic aerosol: Formation and evolution …

WebMay 7, 2024 · image: Biogenic secondary organic aerosol (SOA) formation through complex anthropogenic-biogenic interactions. view more Credit: Li Xu. Despite their … WebFeb 12, 2024 · Atmospheric aerosol is a highly variable and complex mixture largely composed of organic species derived from anthropogenic and biogenic emissions (1–3).Deciphering the composition, origins, and formation mechanisms of organic aerosol (OA) is crucial to unraveling its impacts on climate and human health (4, 5).The … WebApr 13, 2024 · Diurnal variations in primary and secondary organic aerosols in an eastern China coastal city: The impact of land-sea breezes. Zhang, Qiang; Hu, Wei; Ren, ... how many days till march 26 2022

Causes and consequences of decreasing atmospheric organic aerosol …

WebBiogenic secondary organic aerosol (BSOA) contributes significantly to summertime organic particulate matter. In this study, a simulation of BSOA for summer 2012 over China is performed using the Community Multiscale Air Quality model with an explicit representation of BSOA formation via reactive uptake of isoprene-derived intermediates, … WebDec 26, 2024 · Here, using surface observations between 1990 and 2012, we show that organic carbon has declined dramatically across the entire United States by 25–50%; accounting for more than 30% of the US-wide decline in PM. The decline is in contrast with the increasing organic aerosol due to wildfires and no clear trend in biogenic emissions. how many days till march 24thWebAbstract. Organosulfates are secondary organic aerosol (SOA) products that form from reactions of volatile organic compounds (VOC), such as isoprene, in the presence of sulfate that is primarily emitted by fossil fuel … how many days till march 25th 2023

"WebThis increase in CCN causes a rise in global annual mean cloud droplet number concentration (CDNC) of 1.9–5.2%, and a global mean first aerosol indirect effect (AIE) of between +0.01 W m −2 and −0.12 W m −2. The radiative impact of biogenic SOA is far greater when biogenic oxidation products also contribute to the very early stages of ... " - Biogenic secondary organic aerosol

Biogenic secondary organic aerosol

Cloud condensation nucleus activation properties of biogenic secondary ...

WebSep 24, 2024 · Higher temperatures resulting from increased greenhouse gas levels have been suggested to lead to increased biogenic secondary organic aerosol and cloud condensation nuclei concentrations creating ... WebGlobal secondary organic aerosol formation (SOA) is currently assumed to be between 11.2 and 270 Tg/yr. This range of uncertainty is reflected in the gas-phase chemistry. In this study, we focus on the feedback of SOA formation on the concentrations of most important trace gases such as ozone, and compare it to the impact of monoterpene gas-phase …

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WebMar 24, 2024 · Biogenic secondary organic aerosols (SOA) contribute to a large fraction of fine aerosols globally, impacting air quality and climate. The formation of biogenic … WebApr 11, 2024 · HIGHLIGHTS who: Shujun Zhong and colleagues from the Institute of Surface-Earth System Science, School of Earth System Science, Tianjin University, …

WebDec 22, 2014 · Organic aerosol (OA) is an important atmospheric component that influences climate, air quality, and human health ().A large fraction of OA is secondary organic aerosol (SOA), which is formed through oxidation of volatile organic compounds (VOCs) emitted from human activities (anthropogenic) and vegetation (biogenic). WebOct 1, 2024 · An amorphous solid state of biogenic secondary organic aerosol particles. Nature 467 , 824–827 (2010). ADS CAS PubMed Google Scholar

WebApr 5, 2024 · To understand the source, formation, and seasonality of biogenic secondary organic aerosol (BSOA), a nine-stage cascade impactor was utilized to collect size … WebMar 22, 2024 · Organic aerosols could influence atmospheric radiative forcing and climate change. The seasonal characteristics and major sources of sugars and BSOA tracers …

WebSupporting: 61, Contrasting: 6, Mentioning: 1554 - Secondary organic aerosol (SOA) formation is considered in the framework of the gas/particle partitioning absorption model …

WebAug 6, 2012 · Organic aerosol (OA) comprises a large fraction of fine-particle mass (PM 2.5) ().In the developed world, 1–2% of deaths are blamed on inhalation of PM 2.5 (), … high street road uniting churchWebCarlena J. Ebben, Soeren R. Zorn, Seung-Bok Lee, Paulo Artaxo, Scot T. Martin, and Franz M. Geiger "Stereochemical Transfer to Atmospheric Aerosol Particles Accompanying the Oxidation of Biogenic Volatile Organic Compounds" GRL, v.38, 2011, p.L16807 high street rowley regisWebMay 1, 2008 · 1.. IntroductionOrganic compounds make up a substantial fraction of atmospheric fine particulate matter, accounting for 20–90% of aerosol mass in the lower troposphere (Kanakidou et al., 2005).A full understanding of the health, climate, and visibility effects of atmospheric particulate matter thus requires the detailed characterization of the … high street road veterinary clinicWebThis comprehensive research program determine the mechanisms of secondary organic aerosols formation in the atmosphere for a number of important anthropogenic and biogenic hydrocarbons. Experiments in a 1000 liter indoor reactor will be used to probe gas-phase photooxidation mechanisms. ... A 4 m3 outdoor smog chamber will be used to … how many days till march 22nd 2023WebABSTRACTToluene is one of the most important precursor contributors to ozone and secondary organic aerosol (SOA), both of which greatly affect the air quality and human health. In this study, the effects of toluene on ozone and SOA formation were investigated in the presence of NOx in the CAPS-ZJU (Complex Air Pollution Study-Zhejiang University) … high street ridgmontWebJan 1, 2024 · Estimation of biogenic VOC emissions and their corresponding impact on ozone and secondary organic aerosol formation in China. Author links open overlay panel Kai Wu a, Xianyu Yang a, Dean Chen b, ... Simulating biogenic secondary organic aerosol during summertime in China. J. Geophys. Res. Atmos., 123 (2024), pp. 11100 … how many days till march 27th 2024WebThe effects of BVOC emissions on ozone and secondary organic aerosol (SOA) formation were investigated using the WRF-CMAQ modeling system. Three parallel scenarios … how many days till march 28 2017