دورية أكاديمية
Partitioning of reactive oxygen species from indoor surfaces to indoor aerosols.
| العنوان: | Partitioning of reactive oxygen species from indoor surfaces to indoor aerosols. |
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| المؤلفون: | Morrison GC; Environmental Sciences and Engineering, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, NC, USA. glenn.morrison@unc.edu., Eftekhari A; Department of Chemical and Biomolecular Engineering, Georgia Institute of Technology, GA, USA., Lakey PSJ; Department of Chemistry, University of California Irvine, CA, USA., Shiraiwa M; Department of Chemistry, University of California Irvine, CA, USA., Cummings BE; Department of Civil, Architectural and Environmental Engineering, Drexel University, Philadelphia, PA, USA., Waring MS; Department of Civil, Architectural and Environmental Engineering, Drexel University, Philadelphia, PA, USA., Williams B; Department of Energy, Environmental and Chemical Engineering, Washington University in St. Louis, St. Louis, MO, USA.; Center for Aerosol Science and Engineering, Washington University in St. Louis, St. Louis, MO, USA. |
| المصدر: | Environmental science. Processes & impacts [Environ Sci Process Impacts] 2022 Dec 14; Vol. 24 (12), pp. 2310-2323. Date of Electronic Publication: 2022 Dec 14. |
| نوع المنشور: | Journal Article |
| اللغة: | English |
| بيانات الدورية: | Publisher: Royal Society of Chemistry Country of Publication: England NLM ID: 101601576 Publication Model: Electronic Cited Medium: Internet ISSN: 2050-7895 (Electronic) Linking ISSN: 20507887 NLM ISO Abbreviation: Environ Sci Process Impacts Subsets: MEDLINE |
| أسماء مطبوعة: | Original Publication: Cambridge : Royal Society of Chemistry |
| مواضيع طبية MeSH: | Air Pollution, Indoor*/analysis , Ozone* , Air Pollutants*/analysis, Reactive Oxygen Species/analysis ; Aerosols ; Particulate Matter/analysis ; Particle Size ; Environmental Monitoring/methods |
| مستخلص: | Reactive oxygen species (ROS) are among the species thought to be responsible for the adverse health effects of particulate matter (PM) inhalation. Field studies suggest that indoor sources of ROS contribute to measured ROS on PM in indoor air. We hypothesize that ozone reacts on indoor surfaces to form semi-volatile ROS, in particular organic peroxides (OPX), which partition to airborne particles. To test this hypothesis, we modeled ozone-induced formation of OPX, its decay and its partitioning to PM in a residential building and compared the results to field measurements. Simulations indicate that, while ROS of outdoor origin is the primary contributor to indoor ROS (in PM), a substantial fraction of ROS present in indoor PM is from ozone-surface chemistry. At an air change rate equal to 1/h, and an outdoor ozone mixing ratio of 35 ppb, 25% of the ROS concentration in air is due to indoor formation and partitioning of OPX to PM. For the same conditions, but with a modest indoor source of PM (1.5 mg h -1 ), 44% of indoor ROS on PM is of indoor origin. An indoor source of ozone, such as an electrostatic air cleaner, also increases OPX present in indoor PM. The results of the simulations support the hypothesis that ozone-induced formation of OPX on indoor surfaces, and subsequent partitioning to aerosols, is sufficient to explain field observations. Therefore, indoor sourced ROS could contribute meaningfully to total inhaled PM-ROS. |
| المشرفين على المادة: | 0 (Reactive Oxygen Species) 0 (Aerosols) 0 (Particulate Matter) 66H7ZZK23N (Ozone) 0 (Air Pollutants) |
| تواريخ الأحداث: | Date Created: 20221031 Date Completed: 20221215 Latest Revision: 20221221 |
| رمز التحديث: | 20231215 |
| DOI: | 10.1039/d2em00307d |
| PMID: | 36314460 |
| قاعدة البيانات: | MEDLINE |
| تدمد: | 2050-7895 |
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| DOI: | 10.1039/d2em00307d |