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Particulate Matter Measurement Indoors: A Review of Metrics, Sensors, Needs, and Applications.
Environ Sci Technol 2019; 53(20):11644-11656ES

Abstract

Many populations spend ∼90% of their time indoors, with household particulate matter being linked to millions of premature deaths worldwide. Particulate matter is currently measured using particle mass, particle number, and particle size distribution metrics, with other metrics, such as particle surface area, likely to be of increasing importance in the future. Particulate mass is measured using gravimetric methods, tapered element oscillating microbalances, and beta attenuation instruments and is best suited to use in compliance monitoring, trend analysis, and high spatial resolution measurements. Particle number concentration is measured by condensation particle counters, optical particle counters, and diffusion chargers. Particle number measurements are best suited to source characterization, trend analysis and ultrafine particle investigations. Particle size distributions are measured by gravimetric impactors, scanning mobility particle sizers, aerodynamic particle sizers, and fast mobility particle sizers. Particle size distribution measurements are most useful in source characterization and particulate matter property investigations, but most measurement options remain expensive and intrusive. However, we are on the cusp of a revolution in indoor air quality monitoring and management. Low-cost sensors have potential to facilitate personalized information about indoor air quality (IAQ), allowing citizens to reduce exposures to PM indoors and to resolve potential dichotomies between promoting healthy IAQ and energy efficient buildings. Indeed, the low cost will put this simple technology in the hands of citizens who wish to monitor their own IAQ in the home or workplace, to inform lifestyle decisions. Low-cost sensor networks also look promising as the solution to measuring spatial distributions of PM indoors, however, there are important sensor/data quality, technological, and ethical barriers to address with this technology. An improved understanding of epidemiology is essential to identify which metrics correlate most with health effects, allowing indoor specific PM standards to be developed and to inform the future of experimental applications.

Authors+Show Affiliations

Lancaster Environment Centre , Lancaster University , Lancaster LA1 4YQ , United Kingdom. State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry , Chinese Academy of Sciences , 511 Kehua Rd , Tianhe, Guangzhou 510640 , China.Lancaster Environment Centre , Lancaster University , Lancaster LA1 4YQ , United Kingdom.State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry , Chinese Academy of Sciences , 511 Kehua Rd , Tianhe, Guangzhou 510640 , China.Lancaster Environment Centre , Lancaster University , Lancaster LA1 4YQ , United Kingdom.Lancaster Environment Centre , Lancaster University , Lancaster LA1 4YQ , United Kingdom.NAQTS, Lancaster Environment Centre , Lancaster University , Lancaster , LA14YQ , United Kingdom.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

31512864

Citation

Lowther, Scott D., et al. "Particulate Matter Measurement Indoors: a Review of Metrics, Sensors, Needs, and Applications." Environmental Science & Technology, vol. 53, no. 20, 2019, pp. 11644-11656.
Lowther SD, Jones KC, Wang X, et al. Particulate Matter Measurement Indoors: A Review of Metrics, Sensors, Needs, and Applications. Environ Sci Technol. 2019;53(20):11644-11656.
Lowther, S. D., Jones, K. C., Wang, X., Whyatt, J. D., Wild, O., & Booker, D. (2019). Particulate Matter Measurement Indoors: A Review of Metrics, Sensors, Needs, and Applications. Environmental Science & Technology, 53(20), pp. 11644-11656. doi:10.1021/acs.est.9b03425.
Lowther SD, et al. Particulate Matter Measurement Indoors: a Review of Metrics, Sensors, Needs, and Applications. Environ Sci Technol. 2019 Oct 15;53(20):11644-11656. PubMed PMID: 31512864.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Particulate Matter Measurement Indoors: A Review of Metrics, Sensors, Needs, and Applications. AU - Lowther,Scott D, AU - Jones,Kevin C, AU - Wang,Xinming, AU - Whyatt,J Duncan, AU - Wild,Oliver, AU - Booker,Douglas, Y1 - 2019/09/25/ PY - 2019/9/13/pubmed PY - 2019/9/13/medline PY - 2019/9/13/entrez SP - 11644 EP - 11656 JF - Environmental science & technology JO - Environ. Sci. Technol. VL - 53 IS - 20 N2 - Many populations spend ∼90% of their time indoors, with household particulate matter being linked to millions of premature deaths worldwide. Particulate matter is currently measured using particle mass, particle number, and particle size distribution metrics, with other metrics, such as particle surface area, likely to be of increasing importance in the future. Particulate mass is measured using gravimetric methods, tapered element oscillating microbalances, and beta attenuation instruments and is best suited to use in compliance monitoring, trend analysis, and high spatial resolution measurements. Particle number concentration is measured by condensation particle counters, optical particle counters, and diffusion chargers. Particle number measurements are best suited to source characterization, trend analysis and ultrafine particle investigations. Particle size distributions are measured by gravimetric impactors, scanning mobility particle sizers, aerodynamic particle sizers, and fast mobility particle sizers. Particle size distribution measurements are most useful in source characterization and particulate matter property investigations, but most measurement options remain expensive and intrusive. However, we are on the cusp of a revolution in indoor air quality monitoring and management. Low-cost sensors have potential to facilitate personalized information about indoor air quality (IAQ), allowing citizens to reduce exposures to PM indoors and to resolve potential dichotomies between promoting healthy IAQ and energy efficient buildings. Indeed, the low cost will put this simple technology in the hands of citizens who wish to monitor their own IAQ in the home or workplace, to inform lifestyle decisions. Low-cost sensor networks also look promising as the solution to measuring spatial distributions of PM indoors, however, there are important sensor/data quality, technological, and ethical barriers to address with this technology. An improved understanding of epidemiology is essential to identify which metrics correlate most with health effects, allowing indoor specific PM standards to be developed and to inform the future of experimental applications. SN - 1520-5851 UR - https://www.unboundmedicine.com/medline/citation/31512864/Particulate_matter_measurement_indoors:_a_review_of_metrics,_sensors,_needs_and_applications L2 - https://dx.doi.org/10.1021/acs.est.9b03425 DB - PRIME DP - Unbound Medicine ER -