Consolidated Human Activities Database (CHAD)

The Consolidated Human Activity Database (CHAD) contains data obtained from human activity studies that were collected at city, state, and national levels. CHAD is intended to be an input file for exposure/intake dose modeling and/or statistical analysis.

Data and Resources

This dataset has no data

Field Value
accessLevel public
accrualPeriodicity irregular
bureauCode {020:00}
catalog_@context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
catalog_@id https://edg.epa.gov/data/Public/ORD/NERL/metadata/ORD_NERL_ESD.json
catalog_conformsTo https://project-open-data.cio.gov/v1.1/schema
catalog_describedBy https://project-open-data.cio.gov/v1.1/schema/catalog.json
identifier {25B6EC2E-51D5-4691-A4C6-8249268DBEB3}
issued 2014-01-01
landingPage https://edg.epa.gov/metadata/catalog/search/resource/details.page?uuid=%7B25B6EC2E-51D5-4691-A4C6-8249268DBEB3%7D
license https://edg.epa.gov/EPA_Data_License.html
modified 2014-01-01
old-spatial -180.0,18.0,-66.0,72.0
programCode {020:072}
publisher U.S. EPA Office of Research and Development (ORD) - National Exposure Research Laboratory (NERL)
references {https://edg.epa.gov/metadata/rest/document?id=%7B25B6EC2E-51D5-4691-A4C6-8249268DBEB3%7D,https://edg.epa.gov/metadata/catalog/search/resource/details.page?uuid=%7B25B6EC2E-51D5-4691-A4C6-8249268DBEB3%7D}
resource-type Dataset
source_datajson_identifier true
source_hash 86f748a615966f884fcfad47118d5917c5e06bf6
source_schema_version 1.1
spatial {"type": "Polygon", "coordinates": [[[-180.0, 18.0], [-180.0, 72.0], [-66.0, 72.0], [-66.0, 18.0], [-180.0, 18.0]]]}
Groups
  • AmeriGEOSS
  • National Provider
  • North America
Tags
  • AmeriGEO
  • AmeriGEOSS
  • CKAN
  • GEO
  • GEOSS
  • National
  • North America
  • United States
  • datafinder
  • environment
  • exposure
  • health-risks
  • human-health
  • united-states
isopen False
license_id other-license-specified
license_title other-license-specified
maintainer Kristin Isaacs, U.S. EPA Office of Research and Development (ORD) - National Exposure Research Laboratory (NERL)
maintainer_email isaacs.kristin@epa.gov
metadata_created 2025-09-23T19:03:26.059916
metadata_modified 2025-09-23T19:03:26.059923
notes The Consolidated Human Activity Database (CHAD) contains data obtained from human activity studies that were collected at city, state, and national levels. CHAD is intended to be an input file for exposure/intake dose modeling and/or statistical analysis.
num_resources 0
num_tags 14
title Consolidated Human Activities Database (CHAD)