Evidence map›Paper›PMID 36522360›Full record

ArticleScientific reports2022

Magnetic and microscopic investigation of airborne iron oxide nanoparticles in the London Underground.

H A Sheikh, P Y Tung, E Ringe, R J Harrison

Abstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in Scientific reports, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing 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

3 citing papers in PubMed.

  1. Article
  2. Review
  3. 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

4 authors.

H A SheikhDepartment of Earth Sciences, University of Cambridge, Cambridge, CB2 3EQ, UK. has57@cam.ac.uk.
P Y TungDepartment of Earth Sciences, University of Cambridge, Cambridge, CB2 3EQ, UK.
E RingeDepartment of Earth Sciences, University of Cambridge, Cambridge, CB2 3EQ, UK.
R J HarrisonDepartment of Earth Sciences, University of Cambridge, Cambridge, CB2 3EQ, UK.

Funding

Electron, and X-ray microscopy Community for structural, and chemical Imaging Techniques for Earth materials G106564Horizon 2020 101005611
6 · The paper itself

Abstract

Particulate matter (PM) concentration levels in the London Underground (LU) are higher than London background levels and beyond World Health Organization (WHO) defined limits. Wheel, track, and brake abrasion are the primary sources of particulate matter, producing predominantly Fe-rich particles that make the LU microenvironment particularly well suited to study using environmental magnetism. Here we combine magnetic properties, high-resolution electron microscopy, and electron tomography to characterize the structure, chemistry, and morphometric properties of LU particles in three dimensions with nanoscale resolution. Our findings show that LU PM is dominated by 5-500 nm particles of maghemite, occurring as 0.1-2 μm aggregated clusters, skewing the size-fractioned concentration of PM artificially to larger sizes when measured with traditional monitors. Magnetic properties are largely independent of the PM filter size (PM

Indexed as

Air PollutantsDustEnvironmental MonitoringLondonMagnetic Iron Oxide NanoparticlesMagnetic PhenomenaParticle SizeParticulate MatterAir PollutantsDustParticulate Matter

Identifiers

PMID36522360
PMCPMC9755232

What OpenQuestion holds

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LicenceCC BY
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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.