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Validating novel air pollution sensors to improve exposure estimates for epidemiological analyses and citizen science

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Jerrett_Validation_Cambridge_Monitors_Resubmission_Clean_Version.docxAccepted version1.33 MBMicrosoft WordView/Open
Supplementary Appendix I[1].docxSupporting information14.54 MBMicrosoft WordView/Open
Supplementary Appendix II.docxSupporting information89.86 kBMicrosoft WordView/Open
Title: Validating novel air pollution sensors to improve exposure estimates for epidemiological analyses and citizen science
Authors: Jerrett, M
Donaire-Gonzalez, D
Popoola, O
Jones, R
Cohen, RC
Almanza, E
De Nazelle, A
Mead, I
Carrasco-Turigas, G
Cole-Hunter, T
Triguero-Mas, M
Seto, E
Nieuwenhuijsen, M
Item Type: Journal Article
Abstract: Low cost, personal air pollution sensors may reduce exposure measurement errors in epidemiological investigations and contribute to citizen science initiatives. Here we assess the validity of a low cost personal air pollution sensor. Study participants were drawn from two ongoing epidemiological projects in Barcelona, Spain. Participants repeatedly wore the pollution sensor − which measured carbon monoxide (CO), nitric oxide (NO), and nitrogen dioxide (NO2). We also compared personal sensor measurements to those from more expensive instruments. Our personal sensors had moderate to high correlations with government monitors with averaging times of 1-h and 30-min epochs (r ~ 0.38–0.8) for NO and CO, but had low to moderate correlations with NO2 (~0.04–0.67). Correlations between the personal sensors and more expensive research instruments were higher than with the government monitors. The sensors were able to detect high and low air pollution levels in agreement with expectations (e.g., high levels on or near busy roadways and lower levels in background residential areas and parks). Our findings suggest that the low cost, personal sensors have potential to reduce exposure measurement error in epidemiological studies and provide valid data for citizen science studies.
Issue Date: 28-Jun-2017
Date of Acceptance: 20-Apr-2017
URI: http://hdl.handle.net/10044/1/56556
DOI: https://dx.doi.org/10.1016/j.envres.2017.04.023
ISSN: 0013-9351
Publisher: Elsevier
Start Page: 286
End Page: 294
Journal / Book Title: Environmental Research
Volume: 158
Copyright Statement: © 2017, Elsevier. Licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/
Keywords: Science & Technology
Life Sciences & Biomedicine
Environmental Sciences
Public, Environmental & Occupational Health
Environmental Sciences & Ecology
Low cost
Personal air pollution sensor
Air Pollutants
Air Pollution
Carbon Monoxide
Environmental Exposure
Environmental Monitoring
Nitric Oxide
Nitrogen Dioxide
03 Chemical Sciences
05 Environmental Sciences
06 Biological Sciences
Publication Status: Published
Appears in Collections:Centre for Environmental Policy
Faculty of Natural Sciences