Evidence map›Paper›PMID 30205550›Full record

ArticleSensors (Basel, Switzerland)2018

Sensor Selection to Improve Estimates of Particulate Matter Concentration from a Low-Cost Network.

Sinan Sousan, Alyson Gray, Christopher Zuidema, Larissa Stebounova, Geb Thomas, Kirsten Koehler, Thomas Peters

Open access · goldAbstract read
In one paragraph

Article in Sensors (Basel, Switzerland), 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
1.7field-weighted citation impact, top 17% of its field
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

9 citing papers in PubMed, 25 citations in OpenAlex.

  1. Advancing low-cost air quality monitor calibration with machine learning methods.Environmental pollution (Barking, Essex : 1987) · 2025
    Article
  2. Article
  3. Article
  4. Article
  5. Laboratory Determination of Gravimetric Correction Factors for Real-time Area Measurements of Electronic Cigarette Aerosols.Aerosol science and technology : the journal of the American Association for Aerosol Research · 2022
    Article
  6. Article
  7. Sources of error and variability in particulate matter sensor network measurements.Journal of occupational and environmental hygiene · 2019
    Article
  8. Article
  9. 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

7 authors at 2 institutions in 1 country.

Sinan SousanDepartment of Public Health, East Carolina University, Greenville, NC 27834, USA. sousans18@ecu.edu.
Alyson GrayDepartment of Occupational and Environmental Health, University of Iowa, Iowa City, IA 52242, USA. alyson-gray@uiowa.edu.
Christopher ZuidemaDepartment of Environmental Health and Engineering, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD 21205, USA. czuidema@jhu.edu.ORCID 0000-0002-2233-2706
Larissa StebounovaDepartment of Occupational and Environmental Health, University of Iowa, Iowa City, IA 52242, USA. larissa-stebounova@uiowa.edu.
Geb ThomasDepartment of Industrial and Systems Engineering, University of Iowa, Iowa City, IA 52242, USA. geb-thomas@uiowa.edu.
Kirsten KoehlerDepartment of Environmental Health and Engineering, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD 21205, USA. kkoehle1@jhu.edu.
Thomas PetersDepartment of Occupational and Environmental Health, University of Iowa, Iowa City, IA 52242, USA. thomas-m-peters@uiowa.edu.
University of Iowa · USJohns Hopkins University · US

Funding

An Inexpensive Monitoring Network to Assess Workplace Aerosol ExposuresR01OH010533 · OH · JOHNS HOPKINS UNIVERSITY · PI KOEHLER, KIRSTEN ANNE, PETERS, THOMAS MICHAEL · 2014 to 2017
$1.9M
National Institute for Occupational Safety and Health R01 OH010533
6 · The paper itself

Abstract

Deployment of low-cost sensors in the field is increasingly popular. However, each sensor requires on-site calibration to increase the accuracy of the measurements. We established a laboratory method, the Average Slope Method, to select sensors with similar response so that a single, on-site calibration for one sensor can be used for all other sensors. The laboratory method was performed with aerosolized salt. Based on linear regression, we calculated slopes for 100 particulate matter (PM) sensors, and 50% of the PM sensors fell within ±14% of the average slope. We then compared our Average Slope Method with an Individual Slope Method and concluded that our first method balanced convenience and precision for our application. Laboratory selection was tested in the field, where we deployed 40 PM sensors inside a heavy-manufacturing site at spatially optimal locations and performed a field calibration to calculate a slope for three PM sensors with a reference instrument at one location. The average slope was applied to all PM sensors for mass concentration calculations. The calculated percent differences in the field were similar to the laboratory results. Therefore, we established a method that reduces the time and cost associated with calibration of low-cost sensors in the field.

Indexed as

aerosol exposurelow-cost sensorslow-cost wireless networkoccupational monitoringPMsensor calibrationsensor selection

Identifiers

PMID30205550
PMCPMC6163282
OpenAlexW2890953365

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.