Evidence map›Paper›PMID 42457684›Full record

ArticleNature communications2026

Reconciling observed and modeled estimates of urban terpenoid emissions.

Yingnan Zhang, Kai Wu, Hui Wang, Eva Y Pfannerstill, Sanjeevi Nagalingam, Matthew M Coggon, Chelsea Stockwell, Viridiana M Ruiz, Christina Ho, Ye Yu and 6 more

Abstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in Nature communications, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing 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

1 citing paper in PubMed.

  1. Article
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

16 authors.

Yingnan ZhangDepartment of Earth System Science, University of California at Irvine, Irvine, CA, USA.ORCID http://orcid.org/0009-0003-0971-1968
Kai WuDepartment of Civil and Environmental Engineering, University of California at Irvine, Irvine, CA, USA.ORCID http://orcid.org/0000-0002-3863-7918
Hui WangDepartment of Earth System Science, University of California at Irvine, Irvine, CA, USA. huiw16@uci.edu.ORCID http://orcid.org/0000-0002-3380-6903
Eva Y PfannerstillDepartment of Environmental Science, Policy and Management, University of California at Berkeley, Berkeley, CA, USA.ORCID http://orcid.org/0000-0001-7715-1200
Sanjeevi NagalingamDepartment of Earth System Science, University of California at Irvine, Irvine, CA, USA.ORCID http://orcid.org/0000-0003-2520-5742
Matthew M CoggonChemical Sciences Laboratory, National Oceanic and Atmospheric Administration, Boulder, CO, USA.
Chelsea StockwellChemical Sciences Laboratory, National Oceanic and Atmospheric Administration, Boulder, CO, USA.
Viridiana M RuizDepartment of Earth System Science, University of California at Irvine, Irvine, CA, USA.
Christina HoDepartment of Earth System Science, University of California at Irvine, Irvine, CA, USA.
Ye YuDepartment of Earth System Science, University of California at Irvine, Irvine, CA, USA.
Jared NovellyDepartment of Earth System Science, University of California at Irvine, Irvine, CA, USA.
Camille PawlakDepartment of Geography, University of California at Los Angeles, Los Angeles, CA, USA.ORCID http://orcid.org/0000-0003-0740-3956
Saewung KimDepartment of Earth System Science, University of California at Irvine, Irvine, CA, USA.
Carsten WarnekeChemical Sciences Laboratory, National Oceanic and Atmospheric Administration, Boulder, CO, USA.ORCID http://orcid.org/0000-0003-3811-8496
Allen H GoldsteinDepartment of Environmental Science, Policy and Management, University of California at Berkeley, Berkeley, CA, USA.ORCID http://orcid.org/0000-0003-4014-4896
Alex B GuentherDepartment of Earth System Science, University of California at Irvine, Irvine, CA, USA. alex.guenther@uci.edu.ORCID http://orcid.org/0000-0001-6283-8288

Funding

National Science Foundation (NSF) AGS-2347370
6 · The paper itself

Abstract

Extensive observations highlight the significance of terpenoids in urban air quality. However, emission frameworks fail to capture their magnitude and spatial variability, limiting air quality management and atmospheric modeling. Here we reconcile observed and modeled urban terpenoid emissions and uncover intense, underrepresented anthropogenic sources in Greater Los Angeles by combining improved emission inventories, airborne flux measurements, and ground-based mobile measurements. We demonstrate that an enhanced biogenic inventory significantly reduces the discrepancy between modeled and observed isoprene fluxes, and the remaining gap in monoterpenoids is explained predominantly by anthropogenic sectors. We identify that these emissions originate from previously overlooked food industry and commercial businesses, which exhibit a biogenic-like temperature dependence. These anthropogenic sources account for 44% of the top 10% observed monoterpenoid flux hotspots and contribute 17% of the total flux. Given their ubiquity in urban and industrialized regions worldwide, these poorly characterized sources may influence air quality beyond Los Angeles.

Identifiers

PMID42457684
PMCPMC13490599

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

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.