Hemispheric CMAQ Model Outputs for PM2.5 Health Impact Attribution

Model outputs from a 2026 study using the adjoint of the U.S. EPA's Community Multiscale Air Quality (CMAQ) model extended for hemispheric scale. The data estimates location-specific health impacts and monetized burdens from primary PM2.5 and precursor emissions across the northern hemisphere, revealing large spatial and seasonal variability. The dataset is associated with a publication in GeoHealth and is provided by the U.S. Environmental Protection Agency.

Use Cases

• Estimate location-specific mortality burdens from PM2.5 exposure based on the generalized concentration-response function mentioned.
• Analyze spatial and seasonal variability of health impact sensitivities for emissions like NH3, NOX, and SO2.
• Attribute sectoral source contributions to health burdens, focusing on agriculture and residential emissions as described.
• Compare regional monetized health burdens, such as between China, Europe, India, Canada, and the United States.
• Inform regulatory measures by examining location- and sector-specific health impact estimates.

Strengths

• Based on a peer-reviewed publication in GeoHealth from 2026.
• Provides hemispheric-scale estimates, covering the entire northern hemisphere.
• Quantifies health impacts with specific figures, such as 513,700 avoided mortality from a 10% emissions reduction.
• Monetizes health benefits, reporting values like above 1.2 trillion USD2016.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Data is not directly accessible; files are too large for the platform and must be requested from the corresponding author.

Provenance

Source

U.S. Environmental Protection Agency

Collection Method

Outputs from the adjoint of the hemispheric Community Multiscale Air Quality (CMAQ) model.

Time Range

Temporal coverage is not explicitly stated in the provided description.

Freshness

Last updated 2026-03-22 11:50:02.641769; freshness should be verified.

Geography

Northern Hemisphere, with specific regional analysis for East and South Asia, China, India, Europe, Canada, and the United States.