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In May 2024 the National Emissions Collaborative worked with U.S. EPA to release a 2022v1 emissions modeling platform. This platform will be used to support regulatory air quality modeling for next 2-3 years. Applications of this platform will likely include ozone NAAQS attainment demonstrations, PM2.5 NAAQS transport and attainment modeling, and regional haze progress demonstrations.

LADCO created an interactive industrial point source emissions app to help state planners working on industrial decarbonization projects for Climate Pollution Reduction Grant (CPRG) applications.

App Description

The R-Shiny web app allows the filtering of 2022 stationary point source inventory data by state, county, and pollutant. The analysis app can display emissions by either NAICS or Source Classification Code (SCC). The NAICS codes organize the emissions generally by industry classification. SCC codes are more granular and generally organize the emissions by emissions technology (e.g., reciprocating internal combustion engine) and fuel type (e.g., natural gas or coal). Once the user selects the data to display in the table, the top 25 sources in the selected dimensions (e.g. state, CO2, and NAICS) are show. Clicking on a row in the table displays a bubble plot of the emissions in a map below the table, with the bubbles scaled by the size of the emissions (tons/year). Finally, clicking on a bubble on the map displays details about the industrial source.

Data Source

The data in these charts are from the U.S. EPA 2022v1 draft emissions modeling platform. The specific data file behind these charts is the industrial point (non-IPM) flat file (FF10) inventory file (nonegu_norail_2022_POINT_20240615_stackfix2_23jul2024_v0.csv) located on the EPA FTP site for the 2022v1 platform. Only data for the six LADCO member states is available in this app.

About Author

Zac is LADCO's Executive Director. He's an environmental scientist with 20+ years experience in emissions and air quality modeling.