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Hydrocarbon emissions characterization in the Colorado Front Range: A pilot study

Pétron, Gabrielle ; Frost, Gregory ; Miller, Benjamin R. ; Hirsch, Adam I. ; Montzka, Stephen A. ; Karion, Anna ; Trainer, Michael ; Sweeney, Colm ; Andrews, Arlyn E. ; Miller, Lloyd ; Kofler, Jonathan ; Bar-Ilan, Amnon ; Dlugokencky, Ed J. ; Patrick, Laura ; Moore Jr, Charles T. ; Ryerson, Thomas B. ; Siso, Carolina ; Kolodzey, William ; Lang, Patricia M. ; Conway, Thomas ; Novelli, Paul ; Masarie, Kenneth ; Hall, Bradley ; Guenther, Douglas ; Kitzis, Duane ; Miller, John ; Welsh, David ; Wolfe, Dan ; Neff, William ; Tans, Pieter

Journal of Geophysical Research: Atmospheres, 2012-02, Vol.117 (D4), p.n/a [Periódico revisado por pares]

Washington, DC: Blackwell Publishing Ltd

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Título:
Hydrocarbon emissions characterization in the Colorado Front Range: A pilot study
Autor: Pétron, Gabrielle ; Frost, Gregory ; Miller, Benjamin R. ; Hirsch, Adam I. ; Montzka, Stephen A. ; Karion, Anna ; Trainer, Michael ; Sweeney, Colm ; Andrews, Arlyn E. ; Miller, Lloyd ; Kofler, Jonathan ; Bar-Ilan, Amnon ; Dlugokencky, Ed J. ; Patrick, Laura ; Moore Jr, Charles T. ; Ryerson, Thomas B. ; Siso, Carolina ; Kolodzey, William ; Lang, Patricia M. ; Conway, Thomas ; Novelli, Paul ; Masarie, Kenneth ; Hall, Bradley ; Guenther, Douglas ; Kitzis, Duane ; Miller, John ; Welsh, David ; Wolfe, Dan ; Neff, William ; Tans, Pieter
Assuntos: Air pollution ; alkanes ; atmospheric measurements ; Atmospheric sciences ; benzene ; Earth sciences ; Earth, ocean, space ; Exact sciences and technology ; methane ; NOAA ; oil and gas ; Scientific apparatus & instruments ; Troposphere
É parte de: Journal of Geophysical Research: Atmospheres, 2012-02, Vol.117 (D4), p.n/a
Notas: istex:471088F3156D432110EF1DCF485AA7A2D20837C6
ark:/67375/WNG-Z4PW7D5G-N
ArticleID:2011JD016360
Descrição: The multispecies analysis of daily air samples collected at the NOAA Boulder Atmospheric Observatory (BAO) in Weld County in northeastern Colorado since 2007 shows highly correlated alkane enhancements caused by a regionally distributed mix of sources in the Denver‐Julesburg Basin. To further characterize the emissions of methane and non‐methane hydrocarbons (propane, n‐butane, i‐pentane, n‐pentane and benzene) around BAO, a pilot study involving automobile‐based surveys was carried out during the summer of 2008. A mix of venting emissions (leaks) of raw natural gas and flashing emissions from condensate storage tanks can explain the alkane ratios we observe in air masses impacted by oil and gas operations in northeastern Colorado. Using the WRAP Phase III inventory of total volatile organic compound (VOC) emissions from oil and gas exploration, production and processing, together with flashing and venting emission speciation profiles provided by State agencies or the oil and gas industry, we derive a range of bottom‐up speciated emissions for Weld County in 2008. We use the observed ambient molar ratios and flashing and venting emissions data to calculate top‐down scenarios for the amount of natural gas leaked to the atmosphere and the associated methane and non‐methane emissions. Our analysis suggests that the emissions of the species we measured are most likely underestimated in current inventories and that the uncertainties attached to these estimates can be as high as a factor of two. Key Points Emissions from oil and gas operations in the Denver Julesburg Basin Multispecies observations are used to interpret CH4 variability in NE Colorado Atmospheric observations are used to evaluate bottom‐up inventories
Editor: Washington, DC: Blackwell Publishing Ltd
Idioma: Inglês

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Hydrocarbon emissions characterization in the Colorado Front Range: A pilot study

Washington, DC: Blackwell Publishing Ltd

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