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CMAQ_DATA

Metadata Updated: January 30, 2026

Data is CMAQ (Community Multiscale Air Quality) air quality modeling data contained in 12km grids (covering the eastern US) and 36 km grids (covering the entire US) for the years 2004, 2005, and 2006. Each CMAQ grid contains a concentration value for an air pollutant (fine particulate matter - PM2.5), and this concentration value can be used to determine the impact of air pollution concentrations on hospital emergency department admissions for asthma, and hospital inpatient admissions for asthma, myocardial infraction (MI), and heart failure (HF) in Baltimore Maryland. CMAQ data is in both .IOAPI (Input/Output Applications Programming Interface) format and .csv (comma-separated value) format. Health data was used in this analysis, but the health data cannot be released because it contains personally identifiable information (PII) on living individuals, and is protected by the Privacy Act of 1974 (as amended), the Health Insurance Portability and Accountability Act (HIPPA) of 1996 (as amended), and is exempt from Freedom of Information Act (FOIA) requests. The health dataset contains information about human research subjects, and access to it was limited by the Institutional Review Board (IRB) decision of 19 February 2014 (Protocol #13-76), and updated on 8 December 2016. This dataset is not publicly accessible because: EPA cannot release personally identifiable information regarding living individuals, according to the Privacy Act and the Freedom of Information Act (FOIA). This dataset contains information about human research subjects. Because there is potential to identify individual participants and disclose personal information, either alone or in combination with other datasets, individual level data are not appropriate to post for public access. Restricted access may be granted to authorized persons by contacting the party listed. It can be accessed through the following means: The following folder has been set aside to access this (CMAQ_Data-only) data: ftp://newftp.epa.gov/EPADataCommons/ORD/NERL_SED/EHCAB/Hall_ORD-028187/. Format: Data is CMAQ (Community Multiscale Air Quality) air quality modeling data contained in 12km grids (covering the eastern US) and 36 km grids (covering the entire US) for the years 2004, 2005, and 2006. Each CMAQ grid contains a concentration value for an air pollutant (fine particulate matter - PM2.5), and this concentration value can be used to determine the impact of air pollution concentrations on hospital emergency department admissions for asthma, and hospital inpatient admissions for asthma, myocardial infraction (MI), and heart failure (HF) in Baltimore Maryland. CMAQ data is in both .IOAPI (Input/Output Applications Programming Interface) format and .csv (comma-separated value) format. Health data was used in this analysis, but the health data cannot be released because it contains personally identifiable information (PII) on living individuals, and is protected by the Privacy Act of 1974 (as amended), the Health Insurance Portability and Accountability Act (HIPPA) of 1996 (as amended), and is exempt from Freedom of Information Act (FOIA) requests. The health dataset contains information about human research subjects, and access to it was limited by the Institutional Review Board (IRB) decision of 19 February 2014 (Protocol #13-76), and updated on 8 December 2016.

This dataset is associated with the following publication: Braggio, J., E. Hall, S. Weber, and A. Huff. Contribution of Satellite-Derived Aerosol Optical Depth PM2.5 Bayesian Concentration Surfaces to Respiratory-Cardiovascular Chronic Disease Hospitalizations in Baltimore, Maryland. ATMOSPHERE. MDPI AG, Basel, SWITZERLAND, 11(2): 209, (2020).

Access & Use Information

Public: This dataset is intended for public access and use. License: See this page for license information.

Downloads & Resources

No file downloads have been provided. The publisher may provide downloads in the future or they may be available from their other links.

References

https://doi.org/10.3390/atmos11020209

Dates

Metadata Created Date January 30, 2026
Metadata Updated Date January 30, 2026

Metadata Source

Harvested from EPA Non Geo Repository

Additional Metadata

Resource Type Dataset
Metadata Created Date January 30, 2026
Metadata Updated Date January 30, 2026
Publisher U.S. EPA Office of Research and Development (ORD)
Maintainer
Identifier https://doi.org/10.23719/1503115
Data Last Modified 2010-06-16
Public Access Level public
Bureau Code 020:00
Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
Metadata Catalog ID https://edg.epa.gov/data.json
Schema Version https://project-open-data.cio.gov/v1.1/schema
Catalog Describedby https://project-open-data.cio.gov/v1.1/schema/catalog.json
Harvest Object Id b5119f9a-65fa-4be2-af4a-7ecca4666e9f
Harvest Source Id 9c1c2b5b-7925-4ca2-a663-ca2131653db1
Harvest Source Title EPA Non Geo Repository
License https://pasteur.epa.gov/license/sciencehub-license.html
Program Code 020:094
Publisher Hierarchy U.S. Government > U.S. Environmental Protection Agency > U.S. EPA Office of Research and Development (ORD)
Related Documents https://doi.org/10.3390/atmos11020209
Source Datajson Identifier True
Source Hash db88405d9ebe01ce066f6af9647b854dfcfd307ba9bb1e3f03ccdf6fcb7d7673
Source Schema Version 1.1

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