Evidence map›Paper›PMID 41650275›Full record

ArticleScience advances2026

Ozone photochemistry in fresh biomass burning smoke over the United States.

Lixu Jin, Matthew M Coggon, Wade Permar, Julieta F Juncosa Calahorrano, Brett B Palm, Georgios I Gkatzelis, Michael A Robinson, Ilann Bourgeois, Samuel R Hall, Jeff Peischl and 7 more

Abstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in Science advances, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

0 citing papers in PubMed.

No citing paper in PubMed yet.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

17 authors.

Lixu JinDepartment of Chemistry and Biochemistry, University of Montana, Missoula, MT, USA.ORCID 0000-0003-1346-5352
Matthew M CoggonChemical Sciences Laboratory, National Oceanic and Atmospheric Administration, Boulder, CO, USA.ORCID 0000-0002-5763-1925
Wade PermarDepartment of Chemistry and Biochemistry, University of Montana, Missoula, MT, USA.ORCID 0000-0002-9282-0502
Julieta F Juncosa CalahorranoDepartment of Soil, Water, and Climate, University of Minnesota, St. Paul, MN, USA.ORCID 0000-0001-8293-7566
Brett B PalmAtmospheric Chemistry Observations & Modeling Laboratory, NSF National Center for Atmospheric Research, Boulder, CO, USA.ORCID 0000-0001-5548-0812
Georgios I GkatzelisInstitute of Climate and Energy Systems, ICE-3: Troposphere, Forschungszentrum Jülich, Jülich 52428, Germany.ORCID 0000-0002-4608-3695
Michael A RobinsonChemical Sciences Laboratory, National Oceanic and Atmospheric Administration, Boulder, CO, USA.ORCID 0000-0003-0977-9148
Ilann BourgeoisCARRTEL, Université Savoie Mont Blanc, INRAE, Thonon-les-Bains, France.ORCID 0000-0002-2875-1258
Samuel R HallAtmospheric Chemistry Observations & Modeling Laboratory, NSF National Center for Atmospheric Research, Boulder, CO, USA.ORCID 0000-0002-2060-7112
Jeff PeischlChemical Sciences Laboratory, National Oceanic and Atmospheric Administration, Boulder, CO, USA.ORCID 0000-0002-9320-7101
Kirk UllmannAtmospheric Chemistry Observations & Modeling Laboratory, NSF National Center for Atmospheric Research, Boulder, CO, USA.ORCID 0000-0002-4724-9634
Joel A ThorntonDepartment of Atmospheric and Climate Science, University of Washington, Seattle, WA, USA.ORCID 0000-0002-5098-4867
Carsten WarnekeChemical Sciences Laboratory, National Oceanic and Atmospheric Administration, Boulder, CO, USA.ORCID 0000-0003-3811-8496
Frank FlockeAtmospheric Chemistry Observations & Modeling Laboratory, NSF National Center for Atmospheric Research, Boulder, CO, USA.ORCID 0000-0002-2661-6394
Emily V FischerDepartment of Atmospheric Science, Colorado State University, Fort Collins, CO, USA.ORCID 0000-0001-8298-3669
Robert J YokelsonDepartment of Chemistry and Biochemistry, University of Montana, Missoula, MT, USA.ORCID 0000-0002-8415-6808
Lu HuDepartment of Chemistry and Biochemistry, University of Montana, Missoula, MT, USA.ORCID 0000-0002-4892-454X

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The first 5 hours of aging in biomass burning plumes can strongly affect ozone photochemistry. We examine how volatile organic compounds (VOCs), nitrogen oxides, and nitrous acid influence hydroxyl radical, ozone, and peroxyacetyl nitrate (PAN) based on three aircraft campaigns over the United States. Our analyses reveal variable, highly elevated hydroxyl radical concentrations in the first 2 hours, resulting in evident fire-to-fire variability in VOCs oxidation and in ozone and PAN production. About 40 to 70% of the variability is explained by chemical aging. Ozone production in the plumes is usually VOC-limited for the first 2 hours and then nitrogen oxide limited downwind. Box model results for hydroxyl radical, ozone, and most VOCs, using the full, explicit Master Chemical Mechanism (MCM) mechanism, suggest no major gaps in the current best knowledge of gas-phase chemistry. However, the MCM sometimes overestimates PAN due to underestimated nitrogen oxide sinks. GEOS-Chem, a widely used chemical transport model with a reduced mechanism, generally underperforms because of incomplete VOC representation. We identify these critical pathways to guide future model development.

Identifiers

PMID41650275
PMCPMC12880535

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.