EPA AirData sample

Monitor Locator Map -
criteria air pollutants

A Monitor Locator Map shows the locations of air monitoring sites that measure ambient concentrations of criteria air pollutants that you choose. The map has a symbol at the latitude-longitude coordinates of each air monitor. The shape of the map symbol indicates the type of monitor, and the map legend tells how many monitors of each type are in the map. You may elect to include geographic features such as city names, national parks, and highways.

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