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Dataset associated with "Seasonality and source apportionment of non-methane volatile organic compounds at Boulder Reservoir between 2017 and 2019"

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dc.contributor.authorPollack, Ilana B.
dc.contributor.authorHelmig, Detlev
dc.contributor.authorO'Dell, Katelyn
dc.contributor.authorFischer, Emily V.
dc.coverage.spatialBoulder Reservoir (40.0704 N, 105.2198 W, 1604 m asl) located in Boulder, Coloradoen_US
dc.coverage.temporal2017-04-04-2019-12-31en_US
dc.date.accessioned2020-10-28T20:02:30Z
dc.date.available2020-10-28T20:02:30Z
dc.date.issued2020
dc.descriptionDataset containing 13 non-methane volatile organic compounds (NMVOCs) and meteorological parameters collected at Boulder Reservoir (40.0704 N, 105.2198 W, 1604 m asl), located in Boulder, Colorado between 4 April 2017 and 31 December 2019. Data are reported at the local mid time that the NMVOC sample was collected which is reported on Mountain Standard Time (MST). A flag for smoke impacted samples is also included.en_US
dc.descriptionDepartment of Atmospheric Science
dc.description.abstractMultiyear observations of 13 non-methane volatile organic compounds (NMVOCs) were collected at Boulder Reservoir in the Colorado Northern Front Range Metropolitan Area (NFRMA). We separate abundances of NMVOCs into source contributions using two approaches that have been applied to prior NFRMA datasets. Positive matrix factorization (PMF) analysis identifies five NMVOC factors in winter, spring, and fall that correspond to long-lived and short-lived NMVOCs from regional oil and gas production, traffic, local shorter-lived alkenes, and regional anthropogenic background. In summer, there is an additional biogenic NMVOC factor dominated by isoprene. Over all seasons, the PMF model indicates that 57-84% (range includes uncertainties) of C2-C5 alkanes are attributed to oil and natural gas activities. Ethyne is largely from traffic with contributions ranging from 45±6% in winter to 75±21% in summer. Ethene and propene are associated with a potentially separate source of shorter-lived alkenes that we cannot identify. The largest contributing sectors to the observed hazardous air pollutants (HAPs) differ substantially by species and season. Benzene is attributed to oil and natural gas production, traffic and other industrial activities. Toluene is predominantly attributed to regional anthropogenic activities in all seasons. Of the HAPs quantified in this dataset, hexane stands out as largely attributed to oil and natural gas production. The largest differences in the attribution of sources using the two different approaches are for benzene and toluene. Consistent with prior analyses, this work shows that the NFRMA is more strongly influenced by oil and natural gas sources than many other U.S. urban regions.en_US
dc.description.sponsorshipThis work was funded by Boulder County.en_US
dc.format.mediumCSV
dc.format.mediumPDF
dc.identifier.urihttps://hdl.handle.net/10217/215634
dc.identifier.urihttp://dx.doi.org/10.25675/10217/215634
dc.languageEnglishen_US
dc.language.isoengen_US
dc.publisherColorado State University. Librariesen_US
dc.relation.ispartofResearch Data
dc.relation.isreferencedbyPollack, I. B., Helmig, D., O'Dell, K., & Fischer, E. V. (2021). Seasonality and source apportionment of nonmethane volatile organic compounds at Boulder Reservoir, Colorado, between 2017 and 2019. Journal of Geophysical Research: Atmospheres, 126, e2020JD034234. https://doi.org/10.1029/2020JD034234
dc.subjectspeciated volatile organic compoundsen_US
dc.subjectsource apportionmenten_US
dc.subjectmultivariate regressionen_US
dc.subjectpositive matrix factorizationen_US
dc.subjectoil and natural gas productionen_US
dc.subjectColorado northern Front Range metropolitan areaen_US
dc.titleDataset associated with "Seasonality and source apportionment of non-methane volatile organic compounds at Boulder Reservoir between 2017 and 2019"en_US
dc.typeDataseten_US

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