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Next-Generation Community Air Quality Sensors for Identifying Air Pollution Episodes

Author

Listed:
  • Edmund Seto

    (Department of Environmental and Occupational Health Sciences, School of Public Health, University of Washington, Seattle, WA 98195, USA)

  • Graeme Carvlin

    (Department of Environmental and Occupational Health Sciences, School of Public Health, University of Washington, Seattle, WA 98195, USA)

  • Elena Austin

    (Department of Environmental and Occupational Health Sciences, School of Public Health, University of Washington, Seattle, WA 98195, USA)

  • Jeffry Shirai

    (Department of Environmental and Occupational Health Sciences, School of Public Health, University of Washington, Seattle, WA 98195, USA)

  • Esther Bejarano

    (Comite Civico del Valle, Brawley, CA 92227, USA)

  • Humberto Lugo

    (Comite Civico del Valle, Brawley, CA 92227, USA)

  • Luis Olmedo

    (Comite Civico del Valle, Brawley, CA 92227, USA)

  • Astrid Calderas

    (Study Community Steering Committee Member, Brawley, CA 92227, USA)

  • Michael Jerrett

    (Department of Environmental Health Sciences, School of Public Health, University of California, Los Angeles, CA 90095, USA)

  • Galatea King

    (Public Health Institute, Oakland, CA 94607, USA)

  • Dan Meltzer

    (Public Health Institute, Oakland, CA 94607, USA)

  • Alexa Wilkie

    (Public Health Institute, Oakland, CA 94607, USA)

  • Michelle Wong

    (Public Health Institute, Oakland, CA 94607, USA)

  • Paul English

    (California Department of Public Health, Richmond, CA 94804, USA)

Abstract

Conventional regulatory air quality monitoring sites tend to be sparsely located. The availability of lower-cost air pollution sensors, however, allows for their use in spatially dense community monitoring networks, which can be operated by various stakeholders, including concerned residents, organizations, academics, or government agencies. Networks of many community monitors have the potential to fill the spatial gaps between existing government-operated monitoring sites. One potential benefit of finer scale monitoring might be the ability to discern elevated air pollution episodes in locations that have not been identified by government-operated monitoring sites, which might improve public health warnings for populations sensitive to high levels of air pollution. In the Imperial Air study, a large network of low-cost particle monitors was deployed in the Imperial Valley in Southeastern California. Data from the new monitors is validated against regulatory air monitoring. Neighborhood-level air pollution episodes, which are defined as periods in which the PM 2.5 (airborne particles with sizes less than 2.5 μm in diameter) hourly average concentration is equal to or greater than 35 μg m −3 , are identified and corroborate with other sites in the network and against the small number of government monitors in the region. During the period from October 2016 to February 2017, a total of 116 episodes were identified among six government monitors in the study region; however, more than 10 times as many episodes are identified among the 38 community air monitors. Of the 1426 episodes identified by the community sensors, 723 (51%) were not observed by the government monitors. These findings suggest that the dense network of community air monitors could be useful for addressing current limitations in the spatial coverage of government air monitoring to provide real-time warnings of high pollution episodes to vulnerable populations.

Suggested Citation

  • Edmund Seto & Graeme Carvlin & Elena Austin & Jeffry Shirai & Esther Bejarano & Humberto Lugo & Luis Olmedo & Astrid Calderas & Michael Jerrett & Galatea King & Dan Meltzer & Alexa Wilkie & Michelle W, 2019. "Next-Generation Community Air Quality Sensors for Identifying Air Pollution Episodes," IJERPH, MDPI, vol. 16(18), pages 1-16, September.
  • Handle: RePEc:gam:jijerp:v:16:y:2019:i:18:p:3268-:d:264592
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    References listed on IDEAS

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    1. Michelle Wong & Esther Bejarano & Graeme Carvlin & Katie Fellows & Galatea King & Humberto Lugo & Michael Jerrett & Dan Meltzer & Amanda Northcross & Luis Olmedo & Edmund Seto & Alexa Wilkie & Paul En, 2018. "Combining Community Engagement and Scientific Approaches in Next-Generation Monitor Siting: The Case of the Imperial County Community Air Network," IJERPH, MDPI, vol. 15(3), pages 1-14, March.
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    Cited by:

    1. Michelle Wong & Alexa Wilkie & Catalina Garzón-Galvis & Galatea King & Luis Olmedo & Esther Bejarano & Humberto Lugo & Dan Meltzer & Daniel Madrigal & Mariana Claustro & Paul English, 2020. "Community-Engaged Air Monitoring to Build Resilience Near the US-Mexico Border," IJERPH, MDPI, vol. 17(3), pages 1-18, February.
    2. Shohreh F. Farzan & Mitiasoa Razafy & Sandrah P. Eckel & Luis Olmedo & Esther Bejarano & Jill E. Johnston, 2019. "Assessment of Respiratory Health Symptoms and Asthma in Children near a Drying Saline Lake," IJERPH, MDPI, vol. 16(20), pages 1-15, October.

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