Daily Census Tract-Level Ozone Concentrations, 2016

This dataset provides modeled predictions of ozone levels from the EPA's Downscaler model. Data are at the census tract level for 2016. These data are used by the CDC's National Environmental Public Health Tracking Network to generate air quality measures. Census tract-level datasets contain estimates of the mean predicted concentration and associated standard error. Please refer to the metadata attachment for more information.

Learn more about outdoor air quality on the Tracking Network's website: https://ephtracking.cdc.gov/showAirLanding.action.

By using these data, you signify your agreement to comply with the following requirements: 1. Use the data for statistical reporting and analysis only. 2. Do not attempt to learn the identity of any person included in the data and do not combine these data with other data for the purpose of matching records to identify individuals. 3. Do not disclose of or make use of the identity of any person or establishment discovered inadvertently and report the discovery to: trackingsupport@cdc.gov. 4. Do not imply or state, either in written or oral form, that interpretations based on the data are those of the original data sources and CDC unless the data user and data source are formally collaborating. 5. Acknowledge, in all reports or presentations based on these data, the original source of the data and CDC. 6. Suggested citation: Centers for Disease Control and Prevention. National Environmental Public Health Tracking Network. Web. Accessed: insert date. www.cdc.gov/ephtracking.

Data and Resources

Field Value
accessLevel public
bureauCode {009:20}
catalog_@context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
catalog_@id https://data.cdc.gov/data.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 https://data.cdc.gov/api/views/cicv-w9dv
issued 2021-01-21
landingPage https://data.cdc.gov/d/cicv-w9dv
modified 2021-07-07
programCode {009:020}
publisher data.cdc.gov
resource-type Dataset
source_datajson_identifier true
source_hash f6139873341f9310727c9c64a4ed7b2d50a921da
source_schema_version 1.1
theme {"Environmental Health & Toxicology"}
Groups
  • AmeriGEOSS
  • National Provider
  • North America
Tags
  • air-quality
  • amerigeo
  • amerigeoss
  • asthma
  • ckan
  • environmental-health
  • geo
  • geoss
  • national
  • north-america
  • ozone
  • united-states
isopen False
license_id notspecified
license_title License not specified
maintainer Craig Kassinger
maintainer_email trackingsupport@cdc.gov
metadata_created 2025-11-21T23:41:03.669758
metadata_modified 2025-11-21T23:41:03.669762
notes This dataset provides modeled predictions of ozone levels from the EPA's Downscaler model. Data are at the census tract level for 2016. These data are used by the CDC's National Environmental Public Health Tracking Network to generate air quality measures. Census tract-level datasets contain estimates of the mean predicted concentration and associated standard error. Please refer to the metadata attachment for more information. Learn more about outdoor air quality on the Tracking Network's website: https://ephtracking.cdc.gov/showAirLanding.action. By using these data, you signify your agreement to comply with the following requirements: 1. Use the data for statistical reporting and analysis only. 2. Do not attempt to learn the identity of any person included in the data and do not combine these data with other data for the purpose of matching records to identify individuals. 3. Do not disclose of or make use of the identity of any person or establishment discovered inadvertently and report the discovery to: trackingsupport@cdc.gov. 4. Do not imply or state, either in written or oral form, that interpretations based on the data are those of the original data sources and CDC unless the data user and data source are formally collaborating. 5. Acknowledge, in all reports or presentations based on these data, the original source of the data and CDC. 6. Suggested citation: Centers for Disease Control and Prevention. National Environmental Public Health Tracking Network. Web. Accessed: insert date. www.cdc.gov/ephtracking.
num_resources 4
num_tags 12
title Daily Census Tract-Level Ozone Concentrations, 2016