U.S.-MEXICO BORDER PROGRAM ARIZONA BORDER STUDY--QA ANALYTICAL RESULTS FOR METALS IN SPIKE SAMPLES
Notice:
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Description:
The Metals in Spike Samples data set contains the analytical results of measurements of up to 11 metals in 15 control samples (spikes) from 11 households. Measurements were made in spiked samples of dust, food, and dermal wipe residue. Spiked samples were used to assess recovery of target analytes from a sample media during storage, shipment, processing, and analysis. Spiked samples were prepared by fortifying a suitable background-free matrix identical or similar to the sample being collected. Spiked samples were prepared in the labs and shipped to the field site. They were then returned along with the samples. Spiked samples were used for some sample media, being deployed for a small percentage of the study participants. In several cases where there may not have been suitable media or means of fortification, spiked samples were not used. The samples were analyzed as part of the QA/QC protocols of the Border study. The primary metals of interest include lead (CAS# 7439-92-1), arsenic (CAS# 7440-38-2), cadmium (CAS# 7440-43-9), nickel (CAS# 7440-02-0), chromium (CAS# 7440-47-3), barium (CAS# 7440-39-3), manganese (CAS# 7439-96-5), selenium (CAS# 7782-49-2), vanadium (CAS# 7440-62-2), copper (CAS# 7440-50-8), and zinc (CAS# 7440-66-6). Keywords: quality assurance; spikes; metals.
The U.S.-Mexico Border Program is sponsored by the Environmental Health Workgroup of the Border 2012 Program. The Environmental Health Workgroup's mission is "to identify and address, in a binational framework, environmental factors that pose the highest risk to human health so that exposure to such factors may be reduced." To accomplish this mission, studies are performed to help understand the interrelationships between environmental conditions and human health. The Arizona Border Study, sponsored by the Environmental Health Workgroup, is an extension of the Arizona National Human Exposure Assessment Survey (NHEXAS) Phase I Study. The Arizona Border Study collected household environmental and personal samples for chemical analysis, and questionnaires were administered. The NHEXAS Phase I Questionnaires were used with some adjustments and were organized into seven modules (Descriptive, Baseline, Technician, Follow-up, Time and activity diary, Dietary diary, and Supplement) for simplicity in administration. The questionnaires are designed for collecting information that can be temporally related to the exposure, concentration, and/or biological measurements. The Arizona Border study sampled residences determined by a population-based probability research design for populations in the Arizona counties bordering Mexico, and measured metals, pesticides, polynuclear aromatic hydrocarbons (PAHs), 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 Arizona Border 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 September 1997 and July 1998 for the participating households.
Record Details:
Record Type:DATA SET
Product Published Date:09/12/2001
Record Last Revised:12/12/2005
Record ID:
22835
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Related Organizations:
Role
:OWNER
Organization Name
:U.S. EPA Human Exposure and Atmospheric Sciences Division
Primary Email
:admin.heds@epa.gov
Mailing Address
:P.O. Box 93478
Citation
:Las Vegas
State
:NV
Zip Code
:891933478
Quality Assurance:
Title
:U.S.-MEXICO BORDER PROGRAM ARIZONA BORDER STUDY--QA ANALYTICAL RESULTS FOR METALS IN SPIKE SAMPLES
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These data are the result of a probability-based sampling design specific to the population under study. Thus the data may or may not be representative of subsets of this study's population or of other populations. The study was designed to test certain hypotheses, which may limit its applicability for other purposes. When using these data it is important to consider the percentage of non-responses or non-detects in the data as an indicator of its usefulness for other purposes. The U.S. EPA accepts no liability for any errors or omissions in the results included in the data sets, associated information, and/or documentation.
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