Their twitter account is 5 years old and has a screenshot showing they launched a radiation map 2020. https://twitter.com/SaveEcoBot/status/1339958096232329216/

Their twitter account is 5 years old and has a screenshot showing they launched a radiation map 2020. https://twitter.com/SaveEcoBot/status/1339958096232329216/photo/1 https://twitter.com/SaveEcoBot/status/1339958096232329216/ph... So it didn't appear recently, maybe it was not popular enough to be indexed or linked to since launch (only 22 Twitter followers).