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The old farmhouse had dangerously high radon levels in the basement, so we installed a mitigation system.
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The old farmhouse had dangerously high radon levels in the basement, so we installed a mitigation system.
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Related words
radon
IPA(Pronunciation)
Noun
uncountable
Japanese Meaning
化学元素ラドン（原子番号86）：無臭、無色で化学的に不活性な放射性貴ガス。最も安定な同位体は²²²Rn。
English - English
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