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Personal exposures to particles and their relationships with personal activities for chronic obstructive pulmonary disease patients living in Boston.
| Content Provider | Scilit |
|---|---|
| Author | Rojas-Bracho, Leonora Suh, Helen H. Catalano, Paul J. Koutrakis, Petros |
| Copyright Year | 2004 |
| Description | An exposure study of 18 subjects with chronic obstructive pulmonary disease (COPD) living in the Boston, MA, area was conducted. The objective was to examine determinants of personal exposures to particulate matter (PM) with aerodynamic diameters of less than 2.5 μm $(PM_{2.5}$), less than 10 μm $(PM_{10}$), and between 2.5 and 10 μm $(PM_{2.5–10}$). In a previous publication, the analyses of the longitudinal individual-specific relationships among indoor, outdoor, and personal levels showed that the relationships varied by subject and by particle size fraction. In the present paper, statistical and physical models were used to examine personal $PM_{2.5},PM_{10}$, and $PM_{2.5–10}$ exposure covariates. Results indicated that time-weighted indoor concentrations were significant predictors of personal $PM_{2.5},PM_{10}$, and $PM_{2.5–10}$ exposures. Also, time-weighted outdoor concentrations, time spent near smokers, and time spent during transportation were important predictors for $PM_{2.5}$ but not for personal $PM_{2.5–10}$ exposures. In turn, time spent cleaning contributed to all size-fraction personal exposures, whereas cooking affected only personal $PM_{2.5–10}$ exposures. The findings showed that the relationship between personal $PM_{2.5}$ exposures and the corresponding ambient concentrations was influenced by home air exchange rates (or by ventilation status). Because the particle properties or components causing the health effects are unknown, it is not certain to what extent the risk posed by ambient particles can be reduced by controlling any one of these factors. |
| Related Links | http://www.tandfonline.com/doi/pdf/10.1080/10473289.2004.10470897?needAccess=true |
| Ending Page | 217 |
| Page Count | 11 |
| Starting Page | 207 |
| ISSN | 10962247 |
| e-ISSN | 21622906 |
| DOI | 10.1080/10473289.2004.10470897 |
| Journal | Journal of the Air & Waste Management Association |
| Issue Number | 2 |
| Volume Number | 54 |
| Language | English |
| Publisher | Informa UK Limited |
| Publisher Date | 2004-02-21 |
| Access Restriction | Open |
| Subject Keyword | Journal: Journal of the Air & Waste Management Association Toxicology Pm2.5 Models Particle Pm10 Spent Microm Personal Exposures Relationships with Personal |
| Content Type | Text |
| Resource Type | Article |
| Subject | Atmospheric Science Pollution Waste Management and Disposal Management, Monitoring, Policy and Law |
