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NHEXAS PHASE I REGION 5 STUDY--STANDARD OPERATING PROCEDURE--SAMPLE CODING, LABELING, AND FIELD TRACKING PROCEDURES (RTI/ACS-AP-209-070)
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--SAMPLE CODING, LABELING, AND FIELD TRACKING PROCEDURES (RTI/ACS-AP-209-070). U.S. Environmental Protection Agency, Washington, D.C., 1995.
Description:
This protocol defines the coding scheme, labeling procedures, and field tracking for samples collected in the NHEXAS Region 5 study. Unique sample codes were assigned to all personal, environmental, biological, and quality control samples. A label bearing the code in both bar code and alphanumeric character formats was affixed to all samples or sample containers. The purpose of the code was to allow identification and tracking of each sample throughout its lifetime. Bar codes were used to allow sample code entry into electronic format both at the field site and in laboratories equipped to read the labels. Participant identification codes were printed on labels with both bar codes and alphanumeric characters. These labels were applied to study documents and some types of sample collection containers. Unique codes were on labels to be applied to most equipment used at the field site for sample collection or measurement. Keywords: labels; samples; bar codes.
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.