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The design and field implementation of the Detroit Exposure and Aerosol Research Study

The design and field implementation of the Detroit Exposure and Aerosol Research Study,10.1038/jes.2008.61,Journal of Exposure Science and Environment

The design and field implementation of the Detroit Exposure and Aerosol Research Study   (Citations: 12)
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Ron Williams, Anne Rea, Alan Vette, Carry Croghan, Donald Whitaker, Carvin Stevens, Steve Mcdow, Roy Fortmann, Linda Sheldon, Holly Wilson, Jonathan Thornburg, Michael Phillipshttp://academic.research.microsoft.com/io.ashx?type=5&id=42097770&selfId1=0&selfId2=0&maxNumber=12&query=
The US Environmental Protection Agency recently conducted the Detroit Exposure and Aerosol Research Study (DEARS). The study began in 2004 and involved community, residential, and personal-based measurements of air pollutants targeting 120 participants and their residences. The primary goal of the study was to evaluate and describe the relationship between air toxics, particulate matter (PM), PM constituents, and PM from specific sources measured at a central site monitor with those from the residential and personal locations. The impact of regional, local (point and mobile), and personal sources on pollutant concentrations and the role of physical and human factors that might influence these concentrations were investigated. A combination of active and passive sampling methodologies were employed in the collection of PM mass, criteria gases, semivolatile organics, and volatile organic compound air pollutants among others. Monitoring was conducted in six selected neighborhoods along with one community site using a repeated measure design. Households from each of the selected communities were monitored for 5 consecutive days in the winter and again in the summer. Household, participant and a variety of other surveys were utilized to better understand human and household factors that might affect the impact of ambient-based pollution sources upon personal and residential locations. A randomized recruitment strategy was successful in enrolling nearly 140 participants over the course of the study. Over 36,000 daily-based environmental data points or records were ultimately collected. This paper fully describes the design of the DEARS and the approach used to implement this field monitoring study and reports select preliminary findings.
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    • ...44 A review of studies of intraurban heterogeneity found that PM levels across cities did not adhere to assumptions about intraurban uniformity, and methods selected to describe uniformity could affect conclusions...

    Mercedes A. Bravoet al. Spatial Heterogeneity of PM10 and O3 in São Paulo, Brazil, and Implica...

    • ...An additional, and in this setting, arguably more important form of exposure measurement error is related to the use of ambient concentrations as surrogates for personal exposure. The potential importance of this uncertainty is underscored by evidence of the so-called personal cloud; findings that ambient, residential-outdoor and personal PM exposures appear to be more weakly correlated than originally suspected, and that characteristics of participants, studies and the environments in which they are conducted may affect the accuracy of this proxy....

    Eric A Whitselet al. The environmental epidemiology of atrial arrhythmogenesis

    • ...This project is a cardiovascular substudy of the main DEARS involving community, residential and personal measurements of air pollutants for 120 participants randomly chosen to reflect the characteristics of the local population. The detailed methodology is described elsewhere. ...

    Robert D Brooket al. Differences in blood pressure and vascular responses associated with a...

    • ...Details of the exposure assessment [13,14] and of the instrument’s performance have been reported elsewhere [15-18]...
    • ...Previous studies have reported that the Arizona road dust calibrated pDR, identical to the one used in this study, provides a mass concentration estimate in good agreement with that from gravimetric mass-based measures (correlation coefficients > 0.8), but the pDR often yield estimates 10- 50% higher than that from a gravimetric mass-based measures[15,16,18]...

    Fan Heet al. Acute effects of fine particulate air pollution on ST segment height: ...

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