Sources of Variability in Real-time Monitoring Data for Fine Particulate Matter: Comparability of Three Wearable Monitors in an Urban Setting
| Autor: | Melissa C. Friesen, Sarah J. Locke, Jared A. Fisher, Paul S. Albert, Rena R. Jones, Jason Y.Y. Wong, Yonathan Kefelegn, Sungduk Kim |
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| Rok vydání: | 2023 |
| Předmět: |
010504 meteorology & atmospheric sciences
Ecology Health Toxicology and Mutagenesis Comparability Air pollution Wearable computer 010501 environmental sciences medicine.disease_cause 01 natural sciences Pollution Metropolitan area Article Range (statistics) medicine Environmental Chemistry Environmental science Pairwise comparison Waste Management and Disposal Particle counter Reliability (statistics) 0105 earth and related environmental sciences Water Science and Technology Remote sensing |
| Zdroj: | Environ Sci Technol Lett |
| ISSN: | 2328-8930 |
| Popis: | The increasing availability of portable air pollution monitoring devices has greatly enhanced the ability to measure personal exposures in real time. However, these devices vary considerably in their cost and specifications, and questions remain as to their reliability and practicality for use in epidemiological investigations. In this field study, three personal PM(2.5) exposure monitors (two nephelometers, one optical particle counter) were compared in an urban setting to assess their feasibility for use in future studies. In total, 3963 1-min measurements were collected over 12 days from locations of several types (e.g., above and below-ground subway stations, sidewalks next to urban traffic, outdoor construction sites) in the Washington, D.C. metropolitan area. Overall, we observed moderate-to-high agreement in pairwise comparisons of PM(2.5) concentrations between devices (R(2) range: 0.37 to 0.75). Bland-Altman plots showed that differences in device agreement varied over the range of mean concentrations. In linear mixed models adjusting for temperature and relative humidity, we saw significant interaction between device and location (p |
| Databáze: | OpenAIRE |
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