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dc.contributor.author
Sookhak Lari, Kaveh
dc.contributor.author
Davis, Greg B.
dc.contributor.author
Bastow, Trevor
dc.contributor.author
Rayner, John L.
dc.date.accessioned
2023-11-06T16:13:53Z
dc.date.available
2023-11-02T04:46:53Z
dc.date.available
2023-11-06T16:13:53Z
dc.date.issued
2024-01-10
dc.identifier.issn
0048-9697
dc.identifier.issn
1879-1026
dc.identifier.other
10.1016/j.scitotenv.2023.168039
en_US
dc.identifier.uri
http://hdl.handle.net/20.500.11850/639632
dc.identifier.doi
10.3929/ethz-b-000639632
dc.description.abstract
Petroleum releases into the subsurface contribute to global soil carbon emissions. Quantifying releases and changes in releases of carbon from soils over the lifetime of a spill is complex. Natural source zone depletion (NSZD) of light non-aqueous phase liquids (LNAPLs) embodies all key mechanisms for transformation to carbon gases and their release from soils including partitioning, transport and degradation of petroleum components. Quantification of the interconnected behaviours of the soil microbiome, fluid flow, multi-component transport, partitioning, and biodegradation is crucial for understanding NSZD. Volatilization from LNAPL, aerobic biodegradation, methanogenesis, and heat production all lead to release of greenhouse gases to the atmosphere. To estimate carbon emissions, using a validated computational platform, we modelled the long term NSZD of four petroleum hydrocarbon types; crude oil, diesel, jet fuel and gasoline, to span the major products used globally. For two soil types, we estimated 150 years of carbon emissions from annual minor and 25 mostly major petroleum hydrocarbon land release incidents since 1950 – with an estimated released mass of ~9 million tonnes across the circumstances considered. Up to 2100 the mass of carbon emitted to the atmosphere is estimated to range from 4 to 6 Teragrams, with nearly 60 % currently released. Nomographs generated help predict the fate of LNAPL plumes and carbon emissions due to NSZD, which is crucially important to management of soil and groundwater contamination. The method provides a basis to include additionally identified and future petroleum releases. It is noted that the petroleum mixture composition, degradation rates, volatilization, and subsurface characteristics all can influence carbon emission estimations.
en_US
dc.format
application/pdf
en_US
dc.language.iso
en
en_US
dc.publisher
Elsevier
en_US
dc.rights.uri
http://creativecommons.org/licenses/by-nc/4.0/
dc.subject
LNAPL
en_US
dc.subject
NSZD
en_US
dc.subject
Petroleum
en_US
dc.subject
Carbon emission
en_US
dc.subject
Modelling
en_US
dc.subject
Multi-physics
en_US
dc.subject
Transient
en_US
dc.title
On quantifying global carbon emission from oil contaminated lands over centuries
en_US
dc.type
Journal Article
dc.rights.license
Creative Commons Attribution-NonCommercial 4.0 International
dc.date.published
2023-10-23
ethz.journal.title
Science of The Total Environment
ethz.journal.volume
907
en_US
ethz.journal.abbreviated
Sci. Total Environ.
ethz.pages.start
168039
en_US
ethz.size
11 p.
en_US
ethz.version.deposit
publishedVersion
en_US
ethz.identifier.wos
ethz.identifier.scopus
ethz.publication.status
published
en_US
ethz.date.deposited
2023-11-02T04:46:53Z
ethz.source
SCOPUS
ethz.eth
yes
en_US
ethz.availability
Open access
en_US
ethz.rosetta.installDate
2023-11-06T16:13:54Z
ethz.rosetta.lastUpdated
2024-02-03T05:59:34Z
ethz.rosetta.versionExported
true
ethz.COinS
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