In TOXMAP, a geographic region is a named collection of US states and/or counties whose boundaries are highlighted in red on a map. When a region is chosen, all TOXMAP maps show TRI and Superfund results only inside the specified region. In maps that show on-site chemical releases, the color of the circle represents the amount of on-site release relative only to other such releases in that geographic region. Other map data (such as roads, political boundaries, and demographic data) are visually muted on the map.
TOXMAP provides a variety of pre-defined geographic regions, or users can create and name their own regions. To set a region, click the Set Region tab on any map. Entering a location in TOXMAP's Quick Search or Zoom to a Place will not set or change your geographic region, but will zoom the map to that location. You can select "Region" from the Zoom To dropdown menu on the map to zoom to the geographical extent of your region.
Sometimes data will appear outside your region. This can happen when address or location data is inaccurate for a given TRI facility or Superfund site. See the TOXMAP FAQ "How accurate are TRI locations in TOXMAP?"
TOXMAP provides a variety of pre-defined geographic regions, or users can create and name their own regions. To set a region, click the Set Region tab on any map. Entering a location in TOXMAP's Quick Search or Zoom to a Place will not set or change your geographic region, but will zoom the map to that location. You can select "Region" from the Zoom To dropdown menu on the map to zoom to the geographical extent of your region.
Sometimes data will appear outside your region. This can happen when address or location data is inaccurate for a given TRI facility or Superfund site. See the TOXMAP FAQ "How accurate are TRI locations in TOXMAP?"
