Global Radioactivity Map — Gamma Radiation Measured by Raysid Spectrometers

The Raysid Map is a global radioactivity map built from real gamma radiation measurements made by Raysid wireless gamma spectrometers. Raysid users around the world share their dose-rate, CPS/CPM and Cs-137 measurement tracks, which are aggregated into the map layers shown here. Use the menu to switch between base layers (map, satellite, hybrid, terrain, dark and light) and Raysid data layers: dose rate in µSv/h or µR/h, click rates in CPS or CPM, and Cs-137 activity. Click any point on the map to see the measurements recorded at that location. The map is a community resource: the more Raysid devices are used, the more complete the global picture of radioactivity becomes.

Base layer:

Raysid layer:

Detalization level:

Dose rate units:

Click units:

About this map

A global radioactivity map built from real measurements made by Raysid wireless gamma spectrometers. Users share their dose-rate and spectrum tracks, which are aggregated into the layers shown here.

Click any point on the map to see the measurements recorded at that location. Switch between dose rate (µSv/h, µR/h), CPS/CPM layers above.

Get Raysid to build your own radioactivity map.

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