Experimental and Theoretical Study of the Atmospheric Chemistry and Global Warming Potential of SO2F2

2008 ◽  
Vol 112 (49) ◽  
pp. 12657-12666 ◽  
Author(s):  
Vassileios C. Papadimitriou ◽  
R. W. Portmann ◽  
David W. Fahey ◽  
Jens Mühle ◽  
Ray F. Weiss ◽  
...  
Keyword(s):  
Global Warming ◽  
Atmospheric Chemistry ◽  
Global Warming Potential ◽  
Theoretical Study

A theoretical insight into atmospheric chemistry of HFE-7100 and perfluoro-butyl formate: reactions with OH radicals and Cl atoms and the fate of alkoxy radicals

2016 ◽  
Vol 40 (7) ◽  
pp. 6148-6155 ◽  
Author(s):  
Bhupesh Kumar Mishra ◽  
Makroni Lily ◽  
Ramesh Chandra Deka ◽  
Asit K. Chandra
Keyword(s):  
Global Warming ◽  
Atmospheric Chemistry ◽  
Global Warming Potential ◽  
Rate Constants ◽  
Oh Radicals ◽  
Atmospheric Lifetime ◽  
Alkoxy Radicals ◽  
Cl Atoms ◽  
Theoretical Insight ◽  
Insight Into

The calculated rate constants for C4F9OCH3 + OH/Cl reactions are found to be 1.94 × 10−14 and 1.74 × 10−12 cm3 molecule−1 s−1, respectively, at 298 K. The atmospheric lifetime and global warming potential for HFE-7100 are computed to be 2.12 years and 155.3, respectively.

scholarly journals Atmospheric chemistry of CF3 CFHOCF3 : Reaction with OH radicals, atmospheric lifetime, and global warming potential

2002 ◽  
Vol 107 (D21) ◽  
pp. ACH 4-1-ACH 4-6 ◽  
Author(s):  
Kenshi Takahashi ◽  
Yutaka Matsumi ◽  
Timothy J. Wallington ◽  
Michael D. Hurley
Keyword(s):  
Global Warming ◽  
Atmospheric Chemistry ◽  
Global Warming Potential ◽  
Oh Radicals ◽  
Atmospheric Lifetime

scholarly journals Variation in Soil Properties Regulate Greenhouse Gas Fluxes and Global Warming Potential in Three Land Use Types on Tropical Peat

Atmosphere ◽  
2018 ◽  
Vol 9 (12) ◽  
pp. 465 ◽  
Author(s):  
Kiwamu Ishikura ◽  
Untung Darung ◽  
Takashi Inoue ◽  
Ryusuke Hatano
Keyword(s):  
Global Warming ◽  
Soil Moisture ◽  
Groundwater Level ◽  
Global Warming Potential ◽  
C:N Ratio ◽  
Co2 Flux ◽  
Nitrate Content ◽  
N2o Flux ◽  
Ch4 Flux ◽  
In The Beginning

This study investigated spatial factors controlling CO2, CH4, and N2O fluxes and compared global warming potential (GWP) among undrained forest (UDF), drained forest (DF), and drained burned land (DBL) on tropical peatland in Central Kalimantan, Indonesia. Sampling was performed once within two weeks in the beginning of dry season. CO2 flux was significantly promoted by lowering soil moisture and pH. The result suggests that oxidative peat decomposition was enhanced in drier position, and the decomposition acidify the peat soils. CH4 flux was significantly promoted by a rise in groundwater level, suggesting that methanogenesis was enhanced under anaerobic condition. N2O flux was promoted by increasing soil nitrate content in DF, suggesting that denitrification was promoted by substrate availability. On the other hand, N2O flux was promoted by lower soil C:N ratio and higher soil pH in DBL and UDF. CO2 flux was the highest in DF (241 mg C m−2 h−1) and was the lowest in DBL (94 mg C m−2 h−1), whereas CH4 flux was the highest in DBL (0.91 mg C m−2 h−1) and was the lowest in DF (0.01 mg C m−2 h−1), respectively. N2O flux was not significantly different among land uses. CO2 flux relatively contributed to 91–100% of GWP. In conclusion, it is necessary to decrease CO2 flux to mitigate GWP through a rise in groundwater level and soil moisture in the region.

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