Human Exposure Database System
Entry ID: epa_heds

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Summary
Abstract: The Human Exposure Database System (HEDS) is an integrated database
system that contains chemical measurements, questionnaire responses,
documents, and other information related to EPA research studies of
the exposure of people to Environmental contaminants.

HEDS is a product of the Human Exposure and Atmospheric Sciences
Division (HEASD) of the National Exposure Research Laboratory (NERL)
which is a component of EPA's Office of Research and Development
(ORD).

HEDS is a web-enabled data repository for human exposure studies. Its
mission is to provide data sets, documents, and metadata for human
exposure studies that can be easily accessed and understood by a
diverse set of users. Although data are provided about human exposure,
HEDS strives to protect the confidentiality of all study
participants. HEDS operates in conjunction with the Environmental
Information Management System (EIMS), ORD's metadata repository. HEDS
provides only data and accompanying documentation from research
studies; it does not provide interpretations. It allows a user to
download documents for review or data sets for analysis on their own
computer system.

Human exposure studies are designed either to describe the level and
extent of human exposure to various pollutant sources or to map the
relationships between a person's environment and the impact of
pollutant sources from that environment. For each study, there is a
defined population of interest. It may be the population at hand that
is easily accessible for the study, or it may be a broader population
from which the study selects a representative sample that may be
extrapolated to the larger population. These studies will likely have
a survey of the population, whether households, persons, or
buildings. (Further references to participants will be generic
references to the members or constituents of the population actually
being studied.) This survey may be purely demographic in nature, or
it can be composed of several questionnaires, each addressing
different information about the population.

The information in HEDS is organized as a set of studies each
containing data sets, documents, and metadata. There are two documents
available for learning how to use HEDS. One document is for First Time
Users and provides a step-by-step approach for learning the basic
functions in HEDS. The other document is a Reference which describes
the functions and file formats available through HEDS.

Information was obtained from "http://www.epa.gov/heds/default.htm".

Geographic Coverage
 N: 49.0 S: 25.0  E: -67.0  W: -125.0

Data Set Citation
Dataset Originator/Creator: Environmental Protection Agency
Dataset Title: Human Exposure Database System
Dataset Publisher: Environmental Protection Agency
Data Presentation Form: database
Online Resource: http://www.epa.gov/heds/default.htm


Location Keywords
CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA


Science Keywords
HUMAN DIMENSIONS >ENVIRONMENTAL IMPACTS >CONTAMINANT LEVELS/SPILLS    [Definition]
HUMAN DIMENSIONS >PUBLIC HEALTH >DISEASES/EPIDEMICS    [Definition]
HUMAN DIMENSIONS >PUBLIC HEALTH >ENVIRONMENTAL HEALTH FACTORS    [Definition]
HUMAN DIMENSIONS >PUBLIC HEALTH    [Definition]


ISO Topic Category
ENVIRONMENT
HEALTH


Project
ESIP >Earth Science Information Partners Program    [Information]


Access Constraints
For users with accessibility needs, HEDS provides an alternate
approach for retrieving and viewing data available in HEDS. These
users can download the complete data set package for a data set of
interest and view, customize, and use the data and associated metadata
with their own software. Each Complete Data Set package is zipped and
includes files with the data, data dictionary, and code set for the
complete data set.


Use Constraints
The EPA does all it can to ensure the identity of individual 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.


Keywords
human exposure
pollutant sources
survey
demographics


Data Set Progress
IN WORK


Data Center
Human Exposure Database System, National Exposure Research Laboratory, Office of Research and Development, U.S. Environmental Protection Agency    [Information]
Data Center URL: http://www.epa.gov/heds/index.htm
Dataset ID: HEDS

Data Center Personnel
Name: HEDS ADMINISTRATOR
Email: admin.heds at epa.gov
Contact Address:
HEDS Administrator
U. S. Environmental Protection Agency
Human Exposure Research Branch
P.O. Box 93478
City: Las Vegas
Province or State: NV
Postal Code: 89193-3478
Country: USA


Personnel
HEDS ADMINISTRATOR
Role: TECHNICAL CONTACT
Email: admin.heds at epa.gov
Contact Address:
HEDS Administrator
U. S. Environmental Protection Agency
Human Exposure Research Branch
P.O. Box 93478
City: Las Vegas
Province or State: NV
Postal Code: 89193-3478
Country: USA


TYLER B. STEVENS
Role: DIF AUTHOR
Phone: (301) 614-6898
Fax: 301-614-5268
Email: Tyler.B.Stevens at nasa.gov
Contact Address:
NASA Goddard Space Flight Center
Global Change Master Directory
City: Greenbelt
Province or State: MD
Postal Code: 20771
Country: USA



Creation and Review Dates
DIF Creation Date: 2002-05-30
Last DIF Revision Date: 2012-12-21
Future DIF Review Date: 2003-05-30

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