Science Inventory

NHEXAS PHASE I ARIZONA STUDY--STANDARD OPERATING PROCEDURE FOR MAINTENANCE AND TEMPERATURE VERIFICATION OF REFRIGERATED UNITS FOR SAMPLE STORAGE (UA-L-4.1)

Notice:

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:

Arizona Study Consortium. NHEXAS PHASE I ARIZONA STUDY--STANDARD OPERATING PROCEDURE FOR MAINTENANCE AND TEMPERATURE VERIFICATION OF REFRIGERATED UNITS FOR SAMPLE STORAGE (UA-L-4.1). U.S. Environmental Protection Agency, Washington, D.C., 1995.

Description:

The purpose of this SOP is to assure suitable temperature maintenance in refrigerators and freezers used for sample storage during the Arizona NHEXAS project and the "Border" study. Keywords: lab; equipment; refrigerators and freezers.

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 studies collected household environmental and personal samples for chemical analysis, and questionnaires were administered. The NHEXAS Phase I Questionnaires were organized into six modules for simplicity in administration (to minimize respondent burden and maximize participation rates at each step) and for collecting information that can be temporally related to the exposure, concentration, and/or biological measurements collected in NHEXAS: Descriptive, Baseline, Technician, Follow-up, Time and activity diary, and Dietary diary (and follow-up). The NHEXAS Arizona study sampled residences determined by a population-based probability research design for the total population of Arizona and measured metals, pesticides, and volatile organic compounds (VOCs). Analytical results were obtained under strict QA/QC requirements during collection, processing, and final deposition into databases. In addition, strict standard operating procedures were followed throughout the NHEXAS Arizona study. The study was conducted by a consortium composed of the University of Arizona, Battelle Columbus, and the Illinois Institute of Technology. Data collection occurred between June 1995 and February 1998 for the participating households.

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. This SOP is part of the Quality Systems Implementation Plan (QSIP) that was reviewed by the EPA and approved for use in the Arizona 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. Mention of trade names or commercial products does not constitute endorsement or recommendation by EPA for use.

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HEDS STUDIES

STUDY DIRECTORY

Record Details:

Record Type: DOCUMENT (REPORT)
Product Published Date: 04/16/1995
Record Last Revised: 12/22/2005
Record ID: 23017

Organization:

U.S. ENVIRONMENTAL PROTECTION AGENCY

OFFICE OF RESEARCH AND DEVELOPMENT

NATIONAL EXPOSURE RESEARCH LABORATORY