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New Portable Flow Tube Technique to Investigate the Formation and Aging of Secondary Organic Aerosol

New Portable Flow Tube Technique to Investigate the Formation and Aging of Secondary Organic Aerosol PDF Author: Jenny Pui Shan Wong
Publisher:
ISBN:
Category :
Languages : en
Pages : 132

Book Description
A new portable flow tube technique, the Toronto Photo-Oxidation Tube v2.0 was developed and characterized to explore its potential to control and monitor the OH-initiated formation and chemical aging of secondary organic aerosol (SOA) in-situ. The first study investigated the different operational parameters of this flow tube technique. TPOT v2.0 can generate oxidizing conditions equivalent to ambient OH exposures of 2.3 -- 10.8 days. The transmission efficiency of a model organic aerosol indicated negligible losses in the oxidation tube. Differences in the residence time distribution curves measured for a gas and model organic aerosol showed that particles were subjected to approximately half of the OH exposure compared to gases.The second study examined the capacity of the TPOT technique to generate secondary aerosols due to OH oxidation. High aerosol yield was observed for H2SO4 particles, whereas a low aerosol yield was observed for alpha-pinene SOA.

New Portable Flow Tube Technique to Investigate the Formation and Aging of Secondary Organic Aerosol

New Portable Flow Tube Technique to Investigate the Formation and Aging of Secondary Organic Aerosol PDF Author: Jenny Pui Shan Wong
Publisher:
ISBN:
Category :
Languages : en
Pages : 132

Book Description
A new portable flow tube technique, the Toronto Photo-Oxidation Tube v2.0 was developed and characterized to explore its potential to control and monitor the OH-initiated formation and chemical aging of secondary organic aerosol (SOA) in-situ. The first study investigated the different operational parameters of this flow tube technique. TPOT v2.0 can generate oxidizing conditions equivalent to ambient OH exposures of 2.3 -- 10.8 days. The transmission efficiency of a model organic aerosol indicated negligible losses in the oxidation tube. Differences in the residence time distribution curves measured for a gas and model organic aerosol showed that particles were subjected to approximately half of the OH exposure compared to gases.The second study examined the capacity of the TPOT technique to generate secondary aerosols due to OH oxidation. High aerosol yield was observed for H2SO4 particles, whereas a low aerosol yield was observed for alpha-pinene SOA.

Chemical and Physical Investigation of Secondary Organic Aerosol Formation

Chemical and Physical Investigation of Secondary Organic Aerosol Formation PDF Author: Shunsuke Nakao
Publisher:
ISBN:
Category : Aerosols
Languages : en
Pages : 0

Book Description


Chamber Investigations of Secondary Organic Aerosol Formation

Chamber Investigations of Secondary Organic Aerosol Formation PDF Author: David Rea Cocker
Publisher:
ISBN:
Category : Electronic dissertations
Languages : en
Pages : 694

Book Description


Investigations of Secondary Organic Aerosol Formation in Laboratory Chambers

Investigations of Secondary Organic Aerosol Formation in Laboratory Chambers PDF Author: Christine Lauren Loza
Publisher:
ISBN:
Category : Aerosols
Languages : en
Pages : 0

Book Description


The Formation and Aging of Secondary Organic Aerosol from Alpha-pinene Oxidation

The Formation and Aging of Secondary Organic Aerosol from Alpha-pinene Oxidation PDF Author: Kaytlin Henry
Publisher:
ISBN:
Category :
Languages : en
Pages : 0

Book Description


Numerical Study on Formation and Dispersion of Secondary Organic Aerosol

Numerical Study on Formation and Dispersion of Secondary Organic Aerosol PDF Author: Teng Yao
Publisher:
ISBN:
Category :
Languages : en
Pages : 142

Book Description


Secondary Organic Aerosol Formation in the Urban Atmosphere of Hong Kong

Secondary Organic Aerosol Formation in the Urban Atmosphere of Hong Kong PDF Author: Xiaohui Huang
Publisher:
ISBN:
Category : Aerosols
Languages : en
Pages : 201

Book Description


Formation, Ageing and Thermal Properties of Secondary Organic Aerosol [Elektronisk Resurs]

Formation, Ageing and Thermal Properties of Secondary Organic Aerosol [Elektronisk Resurs] PDF Author:
Publisher:
ISBN: 9789162886202
Category :
Languages : en
Pages : 62

Book Description


Secondary Organic Aerosol Formation

Secondary Organic Aerosol Formation PDF Author: Daniel Grosjean
Publisher:
ISBN:
Category :
Languages : en
Pages :

Book Description


Chamber Studies and Modeling of Secondary Organic Aerosol Formation

Chamber Studies and Modeling of Secondary Organic Aerosol Formation PDF Author: Arthur W. H. Chan
Publisher:
ISBN:
Category : Atmospheric aerosols
Languages : en
Pages : 726

Book Description