Usage Notes
It takes the data a couple of minutes to render on the map, so please be patient. After the data are loaded you can zoom and pan the map, toggle the data sources on/off via check boxes, and if you click on any of the green point source locations or blue warehouse locations you’ll get data about the nature and size of the feature. The point and warehouse icons are scaled based on the size of the source: NOx emissions (tons/year) for the point sources and the number of loading docks for the warehouses.
Data Sources:
2019 NO2 Concentrations: Estimated annual average surface-level NO2 concentrations in 2019 derived from a global 1 km x 1 km land-use regression model detailed in Anenberg, Mohegh et al. (2022) and averaged to underlying census tracts following the methods described in Kerr et al. (2021)
2022 Point Source NOx Emissions: U.S. EPA 2022v1 emissions modeling platform. The data were extracted from the 2022v1 emissions review tool that is accessible from the platform webpage.
Warehouse Locations: Locations of warehouses that are larger than 20,000 sq ft. from CoStar.
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