Secondary organic aerosol formation from the photochemical reaction of isoprene with OH radical

2011 ◽  
Vol 41 (7) ◽  
pp. 1206-1214 ◽  
Author(s):  
Wei WANG ◽  
Ying LIU ◽  
ChunMei GENG ◽  
ShaSha DU ◽  
BaoHui YIN ◽  
...  
Keyword(s):  
Photochemical Reaction ◽  
Secondary Organic Aerosol ◽  
Organic Aerosol ◽  
Oh Radical ◽  
Aerosol Formation ◽  
Secondary Organic Aerosol Formation

Effect of OH radical scavengers on secondary organic aerosol formation from reactions of isoprene with ozone

2013 ◽  
Vol 79 ◽  
pp. 147-154 ◽  
Author(s):  
Kei Sato ◽  
Satoshi Inomata ◽  
Jia-Hua Xing ◽  
Takashi Imamura ◽  
Risa Uchida ◽  
...  
Keyword(s):  
Secondary Organic Aerosol ◽  
Organic Aerosol ◽  
Oh Radical ◽  
Aerosol Formation ◽  
Radical Scavengers ◽  
Secondary Organic Aerosol Formation

scholarly journals Secondary Organic Aerosol Formation from Nitrophenols Photolysis under Atmospheric Conditions

Atmosphere ◽  
2020 ◽  
Vol 11 (12) ◽  
pp. 1346
Author(s):  
Iustinian Gabriel Bejan ◽  
Romeo-Iulian Olariu ◽  
Peter Wiesen
Keyword(s):  
Gas Phase ◽  
Secondary Organic Aerosol ◽  
Degradation Mechanism ◽  
Organic Aerosol ◽  
Radical Scavenger ◽  
Oh Radical ◽  
Atmospheric Conditions ◽  
Aerosol Formation ◽  
Chemical Models ◽  
Secondary Organic Aerosol Formation

Nitrophenols are important products of the aromatic compounds photooxidation and play a considerable role in urban chemistry. Nitrophenols are important components of agricultural biomass burning that could influence the climate. The formation of secondary organic aerosol from the direct photolysis of nitrophenols was investigated for the first time in a quartz glass simulation chamber under simulated solar radiation. The results from these experiments indicate rapid SOA formation. The proposed mechanism for the gas-phase degradation of nitrophenols through photolysis shows the formation of biradicals that could react further in the presence of oxygen to form low volatile highly oxygenated compounds responsible for secondary organic aerosol formation. The inhibiting effect of NOx and the presence of an OH radical scavenger on the aerosol formation were also studied. For 2-nitrophenol, significant aerosol formation yields were observed in the absence of an OH radical scavenger and NOx, varying in the range of 18%–24%. A gas-phase/aerosol partitioning model was applied assuming the presence of only one compound in both phases. A degradation mechanism is proposed to explain the aerosol formation observed in the photolysis of nitrophenols. The atmospheric impact of nitrophenol photolysis is discussed and the importance for atmospheric chemical models is assessed.

Secondary organic aerosol formation from untreated exhaust of gasoline four-stroke motorcycles

Urban Climate ◽  
2021 ◽  
Vol 36 ◽  
pp. 100778
Author(s):  
Sepideh Esmaeilirad ◽  
Ari Setyan ◽  
Jing Wang ◽  
Vahid Hosseini
Keyword(s):  
Secondary Organic Aerosol ◽  
Organic Aerosol ◽  
Aerosol Formation ◽  
Secondary Organic Aerosol Formation

scholarly journals Secondary organic aerosol formation from isoprene photooxidation under high-NOxconditions

2005 ◽  
Vol 32 (18) ◽  
pp. n/a-n/a ◽  
Author(s):  
Jesse H. Kroll ◽  
Nga L. Ng ◽  
Shane M. Murphy ◽  
Richard C. Flagan ◽  
John H. Seinfeld
Keyword(s):  
Secondary Organic Aerosol ◽  
Organic Aerosol ◽  
Aerosol Formation ◽  
Secondary Organic Aerosol Formation
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