Modeling the concentrations of gas-phase toxic organic air pollutants: direct emissions and atmospheric formation

1994 ◽  
Vol 28 (1) ◽  
pp. 88-98 ◽  
Author(s):  
Robert A. Harley ◽  
Glen R. Cass
Keyword(s):  
Gas Phase ◽  
Air Pollutants ◽  
Atmospheric Formation

How to Select Adsorption Material for Removing Gas Phase Indoor Air Pollutants: A New Parameter and Approach

2012 ◽  
Vol 22 (1) ◽  
pp. 30-38 ◽  
Author(s):  
Qiujian Xu ◽  
Yinping Zhang ◽  
Jinhan Mo ◽  
Xinxiao Li
Keyword(s):  
Gas Phase ◽  
Indoor Air ◽  
Air Pollutants ◽  
Indoor Air Pollutants

The impact of meteorological forcings on gas phase air pollutants over Europe

2015 ◽  
Vol 119 ◽  
pp. 240-257 ◽  
Author(s):  
Laura Watson ◽  
Gwendoline Lacressonnière ◽  
Michael Gauss ◽  
Magnuz Engardt ◽  
Camilla Andersson ◽  
...  
Keyword(s):  
Gas Phase ◽  
Air Pollutants ◽  
The Impact

scholarly journals Prioritizing testing of organic compounds detected as gas phase air pollutants: structure-activity study for human contact allergens.

1997 ◽  
Vol 105 (9) ◽  
pp. 986-992 ◽  
Author(s):  
R Johnson ◽  
O T Macina ◽  
C Graham ◽  
H S Rosenkranz ◽  
G R Cass ◽  
...  
Keyword(s):  
Gas Phase ◽  
Organic Compounds ◽  
Air Pollutants ◽  
Contact Allergens ◽  
Human Contact ◽  
Structure Activity

Inside Back Cover: Harvesting Hydrogen Gas from Air Pollutants with an Unbiased Gas Phase Photoelectrochemical Cell (ChemSusChem 7/2017)

ChemSusChem ◽  
2017 ◽  
Vol 10 (7) ◽  
pp. 1640-1640
Author(s):  
Sammy W. Verbruggen ◽  
Myrthe Van Hal ◽  
Tom Bosserez ◽  
Jan Rongé ◽  
Birger Hauchecorne ◽  
...  
Keyword(s):  
Gas Phase ◽  
Air Pollutants ◽  
Hydrogen Gas ◽  
Photoelectrochemical Cell ◽  
Back Cover

Gas phase reactions of hydrogen peroxide and hydrogen peroxide/methanol mixtures with air pollutants

1996 ◽  
Vol 26 (2) ◽  
pp. 2125-2132 ◽  
Author(s):  
Vladimir M. zamansky ◽  
Loc Ho ◽  
Peter M. Maly ◽  
W. Randall Seeker
Keyword(s):  
Hydrogen Peroxide ◽  
Gas Phase ◽  
Air Pollutants ◽  
Gas Phase Reactions

Formation of polyaromatic hydrocarbon (PAH)-quinones during the gas phase reactions of PAHs with the OH radical in the atmosphere

2015 ◽  
Vol 12 (3) ◽  
pp. 307 ◽  
Author(s):  
Ji Yi Lee ◽  
Douglas A. Lane ◽  
Yong Pyo Kim
Keyword(s):  
Human Health ◽  
Gas Phase ◽  
Ambient Air ◽  
Reaction Chamber ◽  
Phase Reaction ◽  
Oh Radical ◽  
Polyaromatic Hydrocarbon ◽  
Gas Phase Reactions ◽  
Air Samples ◽  
Atmospheric Formation

Environmental context Atmospheric quinones present a potential toxic risk to human health because of their involvement in the generation of reactive oxygen species. Gas phase reactions of naphthalene and phenanthrene with the OH radical are investigated in a laboratory reaction chamber to provide a preliminary assessment of the importance of the atmospheric formation of quinones. Abstract In light of the potential toxicity of quinones (QNs) to human health, previous studies carried out measurement of QNs in ambient air samples and from motor vehicle emissions to understand the characteristics and the sources of QNs in the atmosphere. The major compounds observed in the ambient air samples comprised two and three benzene rings and included polyaromatic hydrocarbon (PAH)-quinones (PAH-QNs) such as 1,2-naphthoquinone (1,2-NQ), 1,4-naphthoquinone (1,4-NQ), 9,10-phenanthrenequinone (9,10-PQ) and 9,10-anthraquinone (9,10-AQ). Although these PAH-QNs are found in vehicular emissions, they may also be formed by the photochemical reactions of gas phase PAHs with atmospheric oxidants. In this study, to allow an assessment of the importance of the atmospheric formation of PAH-QNs and to understand more clearly the sources of PAH-QNs in the atmosphere, the formation yields of PAH-QNs from the gas phase reactions of naphthalene and phenanthrene with the OH radical were observed in a laboratory reaction chamber. In addition, the phase distribution of the PAH-QNs was determined. For naphthoquinones (NQs), the formation yields of 1,4-NQ and 1,2-NQ were 1.5±0.4 and 5.1±2.7% respectively. The measured yields of PQs were 3.6±0.8% for 9,10-PQ and 2.7±1.1% for 1,4-PQ. From the measured yield data, the atmospheric formation of PAH-QNs was estimated and the importance of the atmospheric formation of PAH-QNs from the gas phase reaction of PAHs with the OH radical is discussed.

Emission Factor of Hazardous Air Pollutants in Gas-phase from Light Commersial Vehicle using PEMS on Real-road Driving

2018 ◽  
Vol 34 (2) ◽  
pp. 191-206
Author(s):  
Ji Hye Lim ◽  
Sang Woo Han ◽  
Jeong Kim ◽  
Young Kee Jang ◽  
Mun Soo Chon ◽  
...  
Keyword(s):  
Gas Phase ◽  
Air Pollutants ◽  
Emission Factor ◽  
Hazardous Air Pollutants
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