气候变化领域集成服务门户(CCPortal): Identifying and quantifying source contributions of air quality contaminants during unconventional shale gas extraction

CCPortal

DOI	10.5194/acp-21-4729-2021
	Identifying and quantifying source contributions of air quality contaminants during unconventional shale gas extraction
	Orak N.H.; Reeder M.; Pekney N.J.
发表日期	2021
ISSN	1680-7316
起始页码	4729
结束页码	4739
卷号	21 期号:6
英文摘要	The United States has experienced a sharp increase in unconventional natural gas (UNG) development due to the technological development of hydraulic fracturing. The objective of this study is to investigate the emissions at an active Marcellus Shale well pad at the Marcellus Shale Energy and Environment Laboratory (MSEEL) in Morgantown, West Virginia, USA. Using an ambient air monitoring laboratory, continuous sampling started in September 2015 during horizontal drilling and ended in February 2016 when wells were in production. High-resolution data were collected for the following air quality contaminants: volatile organic compounds (VOCs), ozone (O3), methane (CH4), nitrogen oxides (NO and NO2), and carbon dioxide (CO2), as well as typical meteorological parameters (wind speed and direction, temperature, relative humidity, and barometric pressure). Positive matrix factorization (PMF), a multivariate factor analysis tool, was used to identify possible sources of these pollutants (factor profiles) and determine the contribution of those sources to the air quality at the site. The results of the PMF analysis for well pad development phases indicate that there are three potential factor profiles impacting air quality at the site: natural gas, regional transport/ photochemistry, and engine emissions. There is a significant contribution of pollutants during the horizontal drilling stage to the natural gas factor. The model outcomes show that there is an increasing contribution to the engine emission factor over different well pad drilling periods through production phases. Moreover, model results suggest that the regional transport/photochemistry factor is more pronounced during horizontal drilling and drillout due to limited emissions at the site. © 2021 BMJ Publishing Group. All rights reserved.
语种	英语
scopus关键词	air quality; atmospheric pollution; horizontal drilling; hydraulic fracturing; multivariate analysis; shale gas; United States; Virginia
来源期刊	ATMOSPHERIC CHEMISTRY AND PHYSICS
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/247023
作者单位	Department of Environmental Engineering, Marmara University, Istanbul, Turkey; Leidos Research Support Team, National Energy Technology Laboratory, Pittsburgh, PA, United States; U.S. Dept. of Energy National Energy Technology Laboratory, Pittsburgh, PA, United States
推荐引用方式 GB/T 7714	Orak N.H.,Reeder M.,Pekney N.J.. Identifying and quantifying source contributions of air quality contaminants during unconventional shale gas extraction[J],2021,21(6).
APA	Orak N.H.,Reeder M.,&Pekney N.J..(2021).Identifying and quantifying source contributions of air quality contaminants during unconventional shale gas extraction.ATMOSPHERIC CHEMISTRY AND PHYSICS,21(6).
MLA	Orak N.H.,et al."Identifying and quantifying source contributions of air quality contaminants during unconventional shale gas extraction".ATMOSPHERIC CHEMISTRY AND PHYSICS 21.6(2021).