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dc.contributor.author | Curto, Ariadna |
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dc.contributor.author | Donaire González, David |
dc.contributor.author | Barrera Gómez, Jose |
dc.contributor.author | Marshall, Julian D. |
dc.contributor.author | Nieuwenhuijsen, Mark J. |
dc.contributor.author | Wellenius, Gregory A. |
dc.contributor.author | Tonne, Cathryn |
dc.date | 2018 |
dc.identifier.citation | Curto A, Donaire-Gonzalez D, Barrera-Gómez J, Marshall JD, Nieuwenhuijsen MJ, Wellenius GA, Tonne C. Performance of low-cost monitors to assess household air pollution. Environ Res. 2018;163: 53-63. DOI: 10.1016/j.envres.2018.01.024 |
dc.identifier.citation | 0013-9351 |
dc.identifier.citation | http://dx.doi.org/10.1016/j.envres.2018.01.024 |
dc.identifier.uri | http://hdl.handle.net/10230/33850 |
dc.description.abstract | Exposure to household air pollution is a leading cause of morbidity and mortality globally. However, due to the lack of validated low-cost monitors with long-lasting batteries in indoor environments, most epidemiologic studies use self-reported data or short-term household air pollution assessments as proxies of long-term exposure. We evaluated the performance of three low-cost monitors measuring fine particulate matter (PM2.5) and carbon monoxide (CO) in a wood-combustion experiment conducted in one household of Spain for 5 days (including the co-location of 2 units of HAPEX and 3 units of TZOA-R for PM2.5 and 3 units of EL-USB-CO for CO; a total of 40 unit-days). We used Spearman correlation (ρ) and Concordance Correlation Coefficient (CCC) to assess accuracy of low-cost monitors versus equivalent research-grade devices. We also conducted a field study in India for 1 week (including HAPEX in 3 households and EL-USB-CO in 4 households; a total of 49 unit-days). Correlation and agreement at 5-min were moderate-high for one unit of HAPEX (ρ = 0.73 / CCC = 0.59), for one unit of TZOA-R (ρ = 0.89 / CCC = 0.62) and for three units of EL-USB-CO (ρ = 0.82–0.89 / CCC = 0.66–0.91) in Spain, although the failure or malfunction rate among low-cost units was high in both settings (60% of unit-days in Spain and 43% in India). Low-cost monitors tested here are not yet ready to replace more established exposure assessment methods in long-term household air pollution epidemiologic studies. More field validation is needed to assess evolving sensors and monitors with application to health studies. |
dc.description.abstract | This work was supported by the Brown India Initiative of Brown University and the European Research Council under ERC Grant Agreement number 336167 for the CHAI Project. ISGlobal is a member of the CERCA Programme, Generalitat de Catalunya. CT was funded through a Ramón y Cajal fellowship (RYC-2015–17402) awarded by the Spanish Ministry of Economy and Competitiveness. |
dc.format | application/pdf |
dc.language.iso | eng |
dc.publisher | Elsevier |
dc.relation | Environmental Research. 2018;163: 53-63. |
dc.relation | http://hdl.handle.net/10230/28201 |
dc.relation | info:eu-repo/grantAgreement/EC/FP7/336167 |
dc.rights | info:eu-repo/semantics/embargoedAccess |
dc.rights | © Elsevier http://dx.doi.org/10.1016/j.envres.2018.01.024 |
dc.subject | Household air pollution |
dc.subject | Particulate matter |
dc.subject | Carbon monoxide |
dc.subject | Air quality sensing |
dc.subject | Low cost instrument |
dc.title | Performance of low-cost monitors to assess household air pollution |
dc.type | info:eu-repo/semantics/article |
dc.type | info:eu-repo/semantics/acceptedVersion |