RadNet
EPA's RadNet Data
RadNet Data
EPA's nationwide radiation monitoring system, RadNet, consists of two components. First, stationary and deployable air monitors measure radiation 24 hours a day, 7 days a week. The map below provides monitoring results as graphs that are updated several times daily. You can also search the RadNet database in EPA's Central Data Exchange (CDX) to find monitoring data. Second, EPA samples precipitation and drinking water on a routine schedule and tests them for radiation in a laboratory. The latest RadNet sampling results and historical results are available in Envirofacts.
More Info
The interactive map below provides access to monitoring data. Point your mouse at the colored dots to see the data for a particular location. You can also access the results through the list of monitoring locations by state.
Hints for navigating around the map
- Zoom: use the + and - icons at the top left, double-click, or roll your mouse wheel
- Move around the map: hold down the left mouse button and move the mouse
Current Stationary Monitoring Locations
ALABAMA
Birmingham
- Near-Real-Time: Stationary Air Monitor
- Laboratory: Air Data available in Envirofacts
Dothan
- Laboratory: Drinking Water Data available in Envirofacts
Montgomery
- Near-Real-Time: Stationary Air Monitor
- Laboratory: Air | Precipitation | Drinking Water Data available in Envirofacts
Muscle Shoals
- Laboratory: Drinking Water Data available in Envirofacts
Scottsboro
- Laboratory: Drinking Water Data available in Envirofacts
Alaska
Anchorage
- Near-Real-Time: Stationary Air Monitor
- Laboratory: Air Data available in Envirofacts
Fairbanks
- Near-Real-Time: Stationary Air Monitor
- Laboratory: Air | Drinking Water Data available in Envirofacts
Juneau
- Near-Real-Time: Stationary Air Monitor
- Laboratory: Air Data available in Envirofacts
ARIZONA
Phoenix
- Near-Real-Time: Stationary Air Monitor
- Laboratory: Air | Historical Milk | Precipitation Data available in Envirofacts
Tucson
- Near-Real-Time: Stationary Air Monitor
- Laboratory: Air Data available in Envirofacts
Yuma
- Near-Real-Time: Stationary Air Monitor
- Laboratory: Air Data available in Envirofacts
ARKANSAS
Fort Smith
- Near-Real-Time: Stationary Air Monitor
- Laboratory: Air Data available in Envirofacts
Little Rock
- Near-Real-Time: Stationary Air Monitor
- Laboratory: Historical Milk | Precipitation | Drinking Water Data available in Envirofacts
CALIFORNIA
Anaheim
- Near-Real-Time: Stationary Air Monitor
- Laboratory: Air Data available in Envirofacts
Bakersfield
- Near-Real-Time: Stationary Air Monitor
- Laboratory: Air Data available in Envirofacts
Eureka
- Near-Real-Time: Stationary Air Monitor
- Laboratory: Air Data available in Envirofacts
Fresno
- Near-Real-Time: Stationary Air Monitor
- Laboratory: Air Data available in Envirofacts
Los Angeles
- Near-Real-Time: Stationary Air Monitor
- Laboratory: Air | Historical Milk Data available in Envirofacts
Oakland
- Laboratory: Historical Milk Data available in Envirofacts
Richmond
- Laboratory: Drinking Water | Precipitation Data available in Envirofacts
Riverside
- Near-Real-Time: Stationary Air Monitor
- Laboratory: Air Data available in Envirofacts
Sacramento
- Near-Real-Time: Stationary Air Monitor
- Laboratory: Air Data available in Envirofacts
San Bernardino
- Near-Real-Time: Stationary Air Monitor
- Laboratory: Air Data available in Envirofacts
San Diego
- Near-Real-Time: Stationary Air Monitor
- Laboratory: Air Data available in Envirofacts
San Francisco
- Near-Real-Time: Stationary Air Monitor
- Laboratory: Air | Historical Milk Data available in Envirofacts
San Jose
- Near-Real-Time: Stationary Air Monitor
- Laboratory: Air Data available in Envirofacts
COLORADO
Colorado Springs
- Near-Real-Time: Stationary Air Monitor
- Laboratory: Air Data available in Envirofacts
Denver
- Near-Real-Time: Stationary Air Monitor
- Laboratory: Air | Drinking Water Data available in Envirofacts
Grand Junction
- Near-Real-Time: Stationary Air Monitor
- Laboratory: Air Data available in Envirofacts
CONNECTICUT
Hartford
- Near-Real-Time: Stationary Air Monitor
- Laboratory: Air | Precipitation | Historical Milk | Drinking Water Data available in Envirofacts
DELAWARE
Dover
- Near-Real-Time: Stationary Air Monitor
- Laboratory: Air | Historical Milk | Drinking Water Data available in Envirofacts
DISTRICT OF COLUMBIA
Washington
- Near-Real-Time: Stationary Air Monitor
- Laboratory: Air Data available in Envirofacts
FLORIDA
Jacksonville
- Near-Real-Time: Stationary Air Monitor
- Laboratory: Air | Precipitation Data available in Envirofacts
Miami
- Near-Real-Time: Stationary Air Monitor
- Laboratory: Air | Drinking Water Data available in Envirofacts
Orlando
- Near-Real-Time: Stationary Air Monitor
- Laboratory: Air Data available in Envirofacts
Tallahassee
- Near-Real-Time: Stationary Air Monitor
- Laboratory: Air Data available in Envirofacts
Tampa
- Near-Real-Time: Stationary Air Monitor
- Laboratory: Air | Drinking Water Data available in Envirofacts
GEORGIA
Atlanta
- Near-Real-Time: Stationary Air Monitor
- Laboratory: Air | Precipitation Data available in Envirofacts
Augusta
- Near-Real-Time: Stationary Air Monitor
- Laboratory: Air Data available in Envirofacts
Baxley
- Laboratory: Drinking Water Data available in Envirofacts
Savannah
- Laboratory: Drinking Water Data available in Envirofacts
HAWAII
Hilo
- Laboratory: Historical Milk Data available in Envirofacts
Honolulu
- Near-Real-Time: Stationary Air Monitor
- Laboratory: Air | Precipitation | Drinking Water Data available in Envirofacts
IDAHO
Boise
- Near-Real-Time: Stationary Air Monitor
- Laboratory: Air | Drinking Water Data available in Envirofacts
Idaho Falls
- Near-Real-Time: Stationary Air Monitor
- Laboratory: Air | Precipitation | Drinking Water Data available in Envirofacts
ILLINOIS
Aurora
- Near-Real-Time: Stationary Air Monitor
- Laboratory: Air Data available in Envirofacts
Champaign
- Near-Real-Time: Stationary Air Monitor
- Laboratory: Air Data available in Envirofacts
Chicago
- Near-Real-Time: Stationary Air Monitor
- Laboratory: Air Data available in Envirofacts
West Chicago
- Laboratory: Drinking Water Data available in Envirofacts
INDIANA
Ft. Wayne
- Near-Real-Time: Stationary Air Monitor
- Laboratory: Air Data available in Envirofacts
Indianapolis
- Near-Real-Time: Stationary Air Monitor
- Laboratory: Air Data available in Envirofacts
IOWA
Cedar Rapids
- Laboratory: Drinking Water Data available in Envirofacts
Des Moines
- Near-Real-Time: Stationary Air Monitor
- Laboratory: Air | Historical Milk Data available in Envirofacts
Mason City
- Near-Real-Time: Stationary Air Monitor
- Laboratory: Air Data available in Envirofacts
KANSAS
Kansas City
- Near-Real-Time: Stationary Air Monitor
- Laboratory: Air | Precipitation Data available in Envirofacts
Topeka
- Laboratory: Drinking Water Data available in Envirofacts
Wichita
- Near-Real-Time: Stationary Air Monitor
- Laboratory: Air | Historical Milk Data available in Envirofacts
KENTUCKY
Lexington
- Near-Real-Time: Stationary Air Monitor
- Laboratory: Air Data available in Envirofacts
Louisville
- Near-Real-Time: Stationary Air Monitor
- Laboratory: Air | Historical Milk Data available in Envirofacts
Paducah
- Near-Real-Time: Stationary Air Monitor
- Laboratory: Air Data available in Envirofacts
LOUISIANA
Baton Rouge
- Near-Real-Time: Stationary Air Monitor
- Laboratory: Air Data available in Envirofacts
New Orleans
- Laboratory: Drinking Water Data available in Envirofacts
Shreveport
- Near-Real-Time: Stationary Air Monitor
- Laboratory: Air Data available in Envirofacts
MAINE
Orono
- Near-Real-Time: Stationary Air Monitor
- Laboratory: Air Data available in Envirofacts
Portland
- Near-Real-Time: Stationary Air Monitor
- Laboratory: Air Data available in Envirofacts
MARYLAND
Baltimore
- Near-Real-Time: Stationary Air Monitor
- Laboratory: Air | Historical Milk | Drinking Water Data available in Envirofacts
Conowingo
- Laboratory: Drinking Water Data available in Envirofacts
MASSACHUSETTS
Boston
- Near-Real-Time: Stationary Air Monitor
- Laboratory: Air | Precipitation Data available in Envirofacts
Worcester
- Near-Real-Time: Stationary Air Monitor
- Laboratory: Air Data available in Envirofacts
MICHIGAN
Bay City
- Near-Real-Time: Stationary Air Monitor
- Laboratory: Air Data available in Envirofacts
Detroit
- Near-Real-Time: Stationary Air Monitor
- Laboratory: Air | Historical Milk | Drinking Water Data available in Envirofacts
East Lansing
- Laboratory: Historical Milk Data available in Envirofacts
Grand Rapids
- Near-Real-Time: Stationary Air Monitor
- Laboratory: Air | Drinking Water Data available in Envirofacts
Lansing
- Laboratory: Precipitation Data available in Envirofacts
MINNESOTA
Duluth
- Near-Real-Time: Stationary Air Monitor
- Laboratory: Air Data available in Envirofacts
St. Paul
- Near-Real-Time: Stationary Air Monitor
- Laboratory: Air | Precipitation | Drinking Water Data available in Envirofacts
Welch
- Laboratory: Precipitation | Drinking Water Data available in Envirofacts
MISSISSIPPI
Jackson
- Near-Real-Time: Stationary Air Monitor
- Laboratory: Air | Drinking Water Data available in Envirofacts
Port Gibson
- Laboratory: Drinking Water Data available in Envirofacts
MISSOURI
Jefferson City
- Near-Real-Time: Stationary Air Monitor
- Laboratory: Air | Historical Milk | Drinking Water Data available in Envirofacts
St. Louis
- Near-Real-Time: Stationary Air Monitor
- Laboratory: Air Data available in Envirofacts
Springfield
- Near-Real-Time: Stationary Air Monitor
- Laboratory: Air Data available in Envirofacts
MONTANA
Billings
- Near-Real-Time: Stationary Air Monitor
- Laboratory: Air Data available in Envirofacts
Helena
- Laboratory: Drinking Water Data available in Envirofacts
NEBRASKA
Kearney
- Near-Real-Time: Stationary Air Monitor
- Laboratory: Air Data available in Envirofacts
Lincoln
- Near-Real-Time: Stationary Air Monitor
- Laboratory: Air | Drinking Water Data available in Envirofacts
Omaha
- Near-Real-Time: Stationary Air Monitor
- Laboratory: Air Data available in Envirofacts
NEVADA
Las Vegas
- Near-Real-Time: Stationary Air Monitor
- Laboratory: Air | Historical Milk Data available in Envirofacts
Reno
- Near-Real-Time: Stationary Air Monitor
- Laboratory: Air | Historical Milk Data available in Envirofacts
NEW HAMPSHIRE
Concord
- Near-Real-Time: Stationary Air Monitor
- Laboratory: Air | Precipitation | Drinking Water Data available in Envirofacts
NEW JERSEY
Edison
- Near-Real-Time: Stationary Air Monitor
- Laboratory: Air Data available in Envirofacts
Trenton
- Laboratory: Historical Milk | Drinking Water Data available in Envirofacts
Waretown
- Laboratory: Drinking Water Data available in Envirofacts
NEW MEXICO
Albuquerque
- Near-Real-Time: Stationary Air Monitor
- Laboratory: Air | Historical Milk Data available in Envirofacts
Carlsbad
- Near-Real-Time: Stationary Air Monitor
- Laboratory: Air Data available in Envirofacts
Navajo Lake
- Near-Real-Time: Stationary Air Monitor
- Laboratory: Air Data available in Envirofacts
NEW YORK
Albany
- Near-Real-Time: Stationary Air Monitor
- Laboratory: Air | Precipitation | Drinking Water Data available in Envirofacts
Buffalo
- Near-Real-Time: Stationary Air Monitor
- Laboratory: Air | Historical Milk Data available in Envirofacts
New York City
- Near-Real-Time: Stationary Air Monitor
- Laboratory: Air | Drinking Water Data available in Envirofacts
Niagara Falls
- Laboratory: Drinking Water Data available in Envirofacts
Rochester
- Near-Real-Time: Stationary Air Monitor
- Laboratory: Air Data available in Envirofacts
Syracuse
- Near-Real-Time: Stationary Air Monitor
- Laboratory: Air | Historical Milk | Drinking Water Data available in Envirofacts
Yaphank
- Near-Real-Time: Stationary Air Monitor
- Laboratory: Air | Precipitation Data available in Envirofacts
NORTH CAROLINA
Charlotte
- Near-Real-Time: Stationary Air Monitor
- Laboratory: Air | Precipitation Data available in Envirofacts
Greensboro
- Near-Real-Time: Stationary Air Monitor
- Laboratory: Air Data available in Envirofacts
Raleigh
- Near-Real-Time: Stationary Air Monitor
- Laboratory: Air Data available in Envirofacts
Wilmington
- Near-Real-Time: Stationary Air Monitor
- Laboratory: Air | Precipitation Data available in Envirofacts
NORTH DAKOTA
Bismarck
- Near-Real-Time: Stationary Air Monitor
- Laboratory: Air | Drinking Water Data available in Envirofacts
OHIO
Cincinnati
- Near-Real-Time: Stationary Air Monitor
- Laboratory: Air | Historical Milk | Drinking Water Data available in Envirofacts
Cleveland
- Near-Real-Time: Stationary Air Monitor
- Laboratory: Air | Historical Milk Data available in Envirofacts
Columbus
- Near-Real-Time: Stationary Air Monitor
- Laboratory: Air | Drinking Water Data available in Envirofacts
East Liverpool
- Laboratory: Drinking Water Data available in Envirofacts
Painesville
- Laboratory: Precipitation | Drinking Water Data available in Envirofacts
Toledo
- Near-Real-Time: Stationary Air Monitor
- Laboratory: Air | Drinking Water Data available in Envirofacts
OKLAHOMA
Oklahoma City
- Near-Real-Time: Stationary Air Monitor
- Laboratory: Air | Drinking Water Data available in Envirofacts
Tulsa
- Near-Real-Time: Stationary Air Monitor
- Laboratory: Air Data available in Envirofacts
OREGON
Corvallis
- Near-Real-Time: Stationary Air Monitor
- Laboratory: Air Data available in Envirofacts
Portland
- Near-Real-Time: Stationary Air Monitor
- Laboratory: Air | Precipitation | Historical Milk | Drinking Water Data available in Envirofacts
PENNSYLVANIA
Bloomsburg
- Near-Real-Time: Stationary Air Monitor
- Laboratory: Air Data available in Envirofacts
Columbia
- Laboratory: Drinking Water Data available in Envirofacts
Harrisburg
- Laboratory: Precipitation | Drinking Water Data available in Envirofacts
Philadelphia
- Near-Real-Time: Stationary Air Monitor
- Laboratory: Air Data available in Envirofacts
Pittsburgh
- Near-Real-Time: Stationary Air Monitor
- Laboratory: Air | Historical Milk | Drinking Water Data available in Envirofacts
PUERTO RICO
San Juan
- Near-Real-Time: Stationary Air Monitor
- Laboratory: Air Data available in Envirofacts
RHODE ISLAND
Providence
- Near-Real-Time: Stationary Air Monitor
- Laboratory: Air | Drinking Water Data available in Envirofacts
SOUTH CAROLINA
Barnwell
- Laboratory: Drinking Water Data available in Envirofacts
Columbia
- Near-Real-Time: Stationary Air Monitor
- Laboratory: Air | Drinking Water Data available in Envirofacts
Jenkinsville
- Laboratory: Drinking Water Data available in Envirofacts
Seneca
- Laboratory: Drinking Water Data available in Envirofacts
SOUTH DAKOTA
Pierre
- Near-Real-Time: Stationary Air Monitor
- Laboratory: Air Data available in Envirofacts
Rapid City
- Near-Real-Time: Stationary Air Monitor
- Laboratory: Air Data available in Envirofacts
TENNESSEE
Athens
- Laboratory: Historical Milk Data available in Envirofacts
Chattanooga
- Laboratory: Drinking Water Data available in Envirofacts
Knoxville
- Near-Real-Time: Stationary Air Monitor
- Laboratory: Air | Precipitation | Historical Milk | Drinking Water Data available in Envirofacts
Memphis
- Near-Real-Time: Stationary Air Monitor
- Laboratory: Air | Historical Milk Data available in Envirofacts
Nashville
- Near-Real-Time: Stationary Air Monitor
- Laboratory: Air | Precipitation Data available in Envirofacts
Oak Ridge
- Laboratory: Precipitation | Drinking Water Data available in Envirofacts
TEXAS
Amarillo
- Near-Real-Time: Stationary Air Monitor
- Laboratory: Air Data available in Envirofacts
Austin
- Near-Real-Time: Stationary Air Monitor
- Laboratory: Air | Precipitation | Drinking Water Data available in Envirofacts
Corpus Christi
- Near-Real-Time: Stationary Air Monitor
- Laboratory: Air Data available in Envirofacts
Dallas
- Near-Real-Time: Stationary Air Monitor
- Laboratory: Air | Historical Milk Data available in Envirofacts
El Paso
- Near-Real-Time: Stationary Air Monitor
- Laboratory: Air Data available in Envirofacts
Ft. Worth
- Near-Real-Time: Stationary Air Monitor
- Laboratory: Air Data available in Envirofacts
Harlingen
- Near-Real-Time: Stationary Air Monitor
- Laboratory: Air Data available in Envirofacts
Houston
- Near-Real-Time: Stationary Air Monitor
- Laboratory: Air Data available in Envirofacts
Laredo
- Near-Real-Time: Stationary Air Monitor
- Laboratory: Air Data available in Envirofacts
Lubbock
- Near-Real-Time: Stationary Air Monitor
- Laboratory: Air Data available in Envirofacts
San Angelo
- Near-Real-Time: Stationary Air Monitor
- Laboratory: Air Data available in Envirofacts
San Antonio
- Near-Real-Time: Stationary Air Monitor
- Laboratory: Air | Historical Milk Data available in Envirofacts
UTAH
Salt Lake City
- Near-Real-Time: Stationary Air Monitor
- Laboratory: Air | Precipitation Data available in Envirofacts
St. George
- Near-Real-Time: Stationary Air Monitor
- Laboratory: Air Data available in Envirofacts
VERMONT
Burlington
- Near-Real-Time: Stationary Air Monitor
- Laboratory: Air Data available in Envirofacts
VIRGINIA
Ashland
- Laboratory: Drinking Water Data available in Envirofacts
Harrisonburg
- Near-Real-Time: Stationary Air Monitor
- Laboratory: Air Data available in Envirofacts
Lynchburg
- Laboratory: Precipitation | Drinking Water Data available in Envirofacts
Richmond
- Near-Real-Time: Stationary Air Monitor
- Laboratory: Air Data available in Envirofacts
Virginia Beach
- Near-Real-Time: Stationary Air Monitor
- Laboratory: Air Data available in Envirofacts
WASHINGTON
Olympia
- Near-Real-Time: Stationary Air Monitor
- Laboratory: Air | Precipitation Data available in Envirofacts
Richland
- Near-Real-Time: Stationary Air Monitor
- Laboratory: Air | Drinking Water Data available in Envirofacts
Seattle
- Near-Real-Time: Stationary Air Monitor
- Laboratory: Air Data available in Envirofacts
Spokane
- Near-Real-Time: Stationary Air Monitor
- Laboratory: Air | Historical Milk Data available in Envirofacts
Tacoma
- Laboratory: Historical Milk Data available in Envirofacts
WEST VIRGINIA
Charleston
- Near-Real-Time: Stationary Air Monitor
- Laboratory: Air Data available in Envirofacts
WISCONSIN
La Crosse
- Near-Real-Time: Stationary Air Monitor
- Laboratory: Air Data available in Envirofacts
Madison
- Near-Real-Time: Stationary Air Monitor
- Laboratory: Air | Drinking Water Data available in Envirofacts
Milwaukee
- Near-Real-Time: Stationary Air Monitor
- Laboratory: Air Data available in Envirofacts
Shawano
- Near-Real-Time: Stationary Air Monitor
- Laboratory: Air Data available in Envirofacts
WYOMING
Casper
- Near-Real-Time: Stationary Air Monitor
- Laboratory: Air Data available in Envirofacts