After the underwater eruption that took place on the island of El Hierro (Canary Islands, Spain) in 2012, there were significant increases in radon gas emissions in the soil. This study was aimed to measure the radon concentrations in public building in El Hierro in order to have better knowledge of the implications of a submarine eruption and the radon levels on the island. The study was undertaken in 38 public buildings located in the three municipalities of the island. Although high concentrations of radon gas were expected due to the recent eruptions, it was found that 70% of the facilities studied maintained radon gas concentration values below the limit values established by Directive 2013/59/EURATOM.

在2012年El Hierro岛（西班牙加那利群岛）发生水下喷发之后，土壤中的gas气排放量显着增加。这项研究旨在测量耶罗岛公共建筑中的concentrations浓度，以便更好地了解海底火山爆发的影响以及岛上的on含量。这项研究是在该岛三个城市的38座公共建筑中进行的。尽管由于最近的喷发预计ra气的浓度很高，但发现所研究的设施中有70％的maintained气浓度值低于指令2013/59 / EURATOM设定的限值。