Evidence map›Paper›PMID 25689348›Full record

ArticleInternational journal of environmental research and public health2015

Chemical characterization of outdoor and subway fine (PM(2.5-1.0)) and coarse (PM(10-2.5)) particulate matter in Seoul (Korea) by computer-controlled scanning electron microscopy (CCSEM).

Sang-Hoon Byeon, Robert Willis, Thomas M Peters

Abstract read
In one paragraph

Article in International journal of environmental research and public health, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing 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

8 citing papers in PubMed.

  1. Article
  2. Article
  3. Implementation of IoT-Based Air Quality Monitoring System for Investigating Particulate Matter (PMInternational journal of environmental research and public health · 2020
    Article
  4. Environmental and Health Effects of Ventilation in Subway Stations: A Literature Review.International journal of environmental research and public health · 2020
    Review
  5. Article
  6. Characterization of Airborne Particles Collected from Car Engine Air Filters Using SEM and EDX Techniques.International journal of environmental research and public health · 2016
    Article
  7. Characterization and Cytotoxicity of PM<0.2, PM0.2-2.5 and PM2.5-10 around MSWI in Shanghai, China.International journal of environmental research and public health · 2015
    Article
  8. 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

3 authors.

Sang-Hoon ByeonDepartment of Environmental Health, College of Health Sciences, Korea University, Seoul 136-703, Korea. shbyeon@korea.ac.kr.
Robert WillisNational Exposure Research Laboratory, U.S. Environmental Protection Agency, Research Triangle Park, NC 27711, USA. willis.robert@epa.gov.
Thomas M PetersDepartment of Occupational and Environmental Health, University of Iowa, 100 Oakdale Campus, Iowa City, Iowa 52242, USA. thomas-m-peters@uiowa.edu.

Funding

Pulmonary Toxicology Facility CoreP30ES005605 · NIEHS · UNIVERSITY OF IOWA · PI HANS-JOACHIM LEHMLER · 1990 to 2026
$40.5M
NIEHS NIH HHS P30 ES005605
6 · The paper itself

Abstract

Outdoor and indoor (subway) samples were collected by passive sampling in urban Seoul (Korea) and analyzed with computer-controlled scanning electron microscopy coupled with energy dispersive x-ray spectroscopy (CCSEM-EDX). Soil/road dust particles accounted for 42%-60% (by weight) of fine particulate matter larger than 1 µm (PM(2.5-1.0)) in outdoor samples and 18% of PM2.5-1.0 in subway samples. Iron-containing particles accounted for only 3%-6% in outdoor samples but 69% in subway samples. Qualitatively similar results were found for coarse particulate matter (PM(10-2.5)) with soil/road dust particles dominating outdoor samples (66%-83%) and iron-containing particles contributing most to subway PM(10-2.5) (44%). As expected, soil/road dust particles comprised a greater mass fraction of PM(10-2.5) than PM(2.5-1.0). Also as expected, the mass fraction of iron-containing particles was substantially less in PM(10-2.5) than in PM(2.5-1.0). Results of this study are consistent with known emission sources in the area and with previous studies, which showed high concentrations of iron-containing particles in the subway compared to outdoor sites. Thus, passive sampling with CCSEM-EDX offers an inexpensive means to assess PM(2.5-1.0) and PM(10-2.5) simultaneously and by composition at multiple locations.

Indexed as

Air PollutantsDustEnvironmental MonitoringIronMicroscopy, Electron, ScanningParticulate MatterRailroadsSeoulSpectrometry, X-Ray EmissionAir PollutantsDustIronParticulate Matter

Identifiers

PMID25689348
PMCPMC4344713

What OpenQuestion holds

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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.