About Safecast

Safecast is an international, volunteer-centered organization devoted to open citizen science for the environment launched after the March 11, 2011 earthquake/tsunami which struck Japan and the subsequent meltdown of the Fukushima Daiichi Nuclear Power Plant. Safecast quickly began monitoring, collecting, and openly sharing information on environmental radiation, growing quickly in size, scope, and geographical reach. Today our dataset is the largest of it’s kind ever, and has recently begun to include air quality as well.


Our mission is to provide people worldwide with the tools they need to inform themselves by gathering and sharing accurate environmental data in an open and participatory fashion. Safecast has deployed an innovative model of rapid integrated development, including hardware, software, engineering, science, visual design, communication, and social design factors. From the start we have embraced open-source and open-data methodologies. We promote rapid, agile, and iterative development, and benefit from having a technically skilled pool of collaborators around the globe. Our community is inclusive and non-partisan, and includes people of all ages and from all walks of life. Outreach activities allow us to share our experiences with individuals and groups worldwide through frequent workshops, talks, and educational programs.


Most importantly, Safecast has enabled people to easily monitor their own homes and environments, and to free themselves of dependence on government and other institutions for this kind of essential information. We are happy to be playing a major continuing role in the emergence of technically competent citizen efforts worldwide.

Safecast Map

Above: The Safecast Map

Safecast logos

Above: A downloadable .zip file of Safecast logos.

Thank you