干旱区生态环境知识资源中心(Arid): Spatial Fingerprinting of Biogenic and Anthropogenic Volatile Organic Compounds in an Arid Unsaturated Zone

Arid

DOI	10.2136/vzj2019.05.0047
	Spatial Fingerprinting of Biogenic and Anthropogenic Volatile Organic Compounds in an Arid Unsaturated Zone
	Green, Christopher T.1; Luo, Wentai 2; Conaway, Christopher H.1; Haase, Karl B.3; Baker, Ronald J.4; Andraski, Brian J.5
通讯作者	Green, Christopher T.
来源期刊	VADOSE ZONE JOURNAL
ISSN	1539-1663
出版年	2019
卷号	18 期号:1
英文摘要	Subsurface volatile organic compounds (VOCs) can pose risks to human and environmental health and mediate biological processes. Volatile organic compounds have both anthropogenic and biogenic origins, but the relative importance of these sources has not been explored in subsurface environments. This study synthesized 17 yr of VOC data from the Amargosa Desert Research Site in Nevada with the goal of improving understanding of spatial and temporal variations that distinguish sources of VOCs from a landfill and from ambient sources including biogenic VOCs (bVOCs). Gas samples were collected from 1999 to 2016 from an array of shallow sample points (0.5- and 1.5-m depth) and from vertical profiles at three deep boreholes: two (109 m deep) near the border of a waste facility (33 and 100 m distant), and one (29 m deep) in a remote area 3 km to the south. Samples were analyzed for target VOCs and a subset was analyzed for non-target VOCs to enumerate a greater variety of potential bVOCs. Principal components analysis of the target and non-target VOCs provided an assessment of the spatial variability of VOCs originating from the landfill site and from ambient sources. Ambient VOCs occurred at all sample sites across a range of depths, and most were consistent with biogenic origins, indicating for the first time the presence of bVOCs in the deep unsaturated zone. Because some VOCs have both anthropogenic and biogenic sources, discrimination of sources can be important for estimating the extent and migration of anthropogenic plumes in arid unsaturated zones.
类型	Article
语种	英语
国家	USA
开放获取类型	Green Published, gold
收录类别	SCI-E
WOS记录号	WOS:000491157800001
WOS关键词	TRITIUM CONTAMINATION ; MOJAVE DESERT ; VADOSE ZONE ; TRANSPORT ; EMISSIONS ; VEGETATION ; EVOLUTION ; TOLUENE ; FLUXES ; PLANTS
WOS类目	Environmental Sciences ; Soil Science ; Water Resources
WOS研究方向	Environmental Sciences & Ecology ; Agriculture ; Water Resources
EI主题词	2019-10-17
来源机构	United States Geological Survey
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/310299
作者单位	1.US Geol Survey, 345 Middlefield Rd, Menlo Pk, CA 94025 USA; 2.Portland State Univ, POB 751, Portland, OR 97207 USA; 3.US Geol Survey, 12201 Sunrise Valley Dr, Reston, VA 20192 USA; 4.US Geol Survey, 959 Natl Ctr, Reston, VA 22092 USA; 5.US Geol Survey, 2730 N Deer Run Rd, Carson City, NV 89701 USA
推荐引用方式 GB/T 7714	Green, Christopher T.,Luo, Wentai,Conaway, Christopher H.,et al. Spatial Fingerprinting of Biogenic and Anthropogenic Volatile Organic Compounds in an Arid Unsaturated Zone[J]. United States Geological Survey,2019,18(1).
APA	Green, Christopher T.,Luo, Wentai,Conaway, Christopher H.,Haase, Karl B.,Baker, Ronald J.,&Andraski, Brian J..(2019).Spatial Fingerprinting of Biogenic and Anthropogenic Volatile Organic Compounds in an Arid Unsaturated Zone.VADOSE ZONE JOURNAL,18(1).
MLA	Green, Christopher T.,et al."Spatial Fingerprinting of Biogenic and Anthropogenic Volatile Organic Compounds in an Arid Unsaturated Zone".VADOSE ZONE JOURNAL 18.1(2019).