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NHEXAS PHASE I REGION 5 STUDY--STANDARD OPERATING PROCEDURE--NHEXAS TIME/ACTIVITY DIARY COLLECTION PROTOCOL (EOHSI-AP-209-300)
WARNING! DATA USE RESTRICTIONS
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The EPA does all it can to ensure that the identity of survey participants cannot be disclosed. All direct identifiers, as well as any characteristics that might lead to identifications, are omitted from the data. Any intentional identification or disclosure of a person or establishment violates the assurances of confidentiality given to the providers of the information. Therefore, users will (1) use the data in this study for statistical reporting and analysis only; (2) make no use of the identity of any person or establishment discovered inadvertently and will advise the HEDS Administrator of any such discovery; (3) will not link this data with individually identifiable data from other EPA or non-EPA data.
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Citation:
Region 5 Study Consortium. NHEXAS PHASE I REGION 5 STUDY--STANDARD OPERATING PROCEDURE--NHEXAS TIME/ACTIVITY DIARY COLLECTION PROTOCOL (EOHSI-AP-209-300). U.S. Environmental Protection Agency, Washington, D.C., 1994.
Description:
This protocol describes the development and use of the Time/Activity Questionnaire used by target individuals in each household participating in the NHEXAS pilot study. The questionnaire consists of two parts. The first part is a one-sheet record of the time and location of daily activities. The sheet records 8 24-hour periods and the general locations where an individual might spend time. These locations include inside the home, inside school or work place, inside other buildings, outside the home, outside at work or school, outside in other locations, and in transit. The second part of the questionnaire consists of 35 questions related to specific activities. These are activities that may contribute to an individual's exposure to pollutants of interest in the NHEXAS pilot study. This questionnaire is used to record the occurrence of the activities on each of the days of the pilot study. Keywords: questionnaire; time budget; activity patterns; survey.
The National Human Exposure Assessment Survey (NHEXAS) is a federal interagency research effort coordinated by the Environmental Protection Agency (EPA), Office of Research and Development (ORD). Phase I consists of demonstration/scoping studies using probability-based sampling designs. The Region 5 study was conducted in EPA's Region 5 (Ohio, Michigan, Illinois, Indiana, Wisconsin, and Minnesota), and included personal exposure, residential concentration, and biomarker measurements of metals and VOCs. The study was conducted by the Research Triangle Institute (RTI) and the Environmental and Occupational Health Sciences Institute (EOHSI). The scope and design of the study are detailed in the following article: E. Pellizzari et al., Population-Based Exposure Measurements in EPA Region 5: A Phase I Field Study in Support of the National Human Exposure Assessment Survey. Journal of Exposure Analysis and Environmental Epidemiology, Vol. 5, No. 3, 1995, pp. 327-358.
NOTE: The U.S. Environmental Protection Agency (EPA), through its Office of Research and Development (ORD), partially funded and collaborated in the research described here. Mention of trade names or commercial products does not constitute endorsement or recommendation by EPA for use. This SOP is part of the Quality Systems Implementation Plan (QSIP) that was reviewed by the EPA and approved for use in this demonstration/scoping study. This SOP was used in the study and is provided for documentation purposes. It does not reflect EPA methods and should not be construed as such. The methods were generated by the consortium to be used for the NHEXAS pilot study.