Radon (Leaving Cert Construction Studies): Flashcards
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Practise the cards
10 cards from this deck
Radon
Radon
Dangerous radioactive gas from uranium decay
Uranium decay chain to radon
Uranium decay chain to radon
Uranium → Radium → Radon gas
Radon's detectable properties
Radon's detectable properties
Tasteless, odourless, colourless - invisible to senses
Main health risk of radon exposure
Main health risk of radon exposure
Increased lung cancer risk
How radon enters buildings (3 ways)
How radon enters buildings (3 ways)
Cracks in walls/floors, gaps, floor-wall junctions
Passive radon system barrier
Passive radon system barrier
Airtight polythene sheet, gauge
Active system sump function
Active system sump function
Low-pressure void that draws radon from surroundings
National Reference Level for radon
National Reference Level for radon
(becquerels per cubic metre)
Best sealant for existing building radon protection
Best sealant for existing building radon protection
Construction-grade silicone sealant
'Top hat' seal system use
'Top hat' seal system use
Seals service pipes passing through radon barriers