A proposed standard for radioactivity in building materials used in the Netherlands.
D003252:Construction Materials / Q000592:standards*; D004781:Environmental Exposure; D006798:Housing; D006801:Humans; D009426:Netherlands; D011834:Radiation Monitoring; D011835:Radiation Protection; D011886:Radon; D013910:Thorium
D013910:Thorium; D011886:Radon