[=̵] =ֱ ȯ濬 ö ° սǿ (Rn) , ̿ü ǰ ̳ Ÿ ϴٰ 21 .
9 12 20 Ͽ ° սǷ ߴ. 13.0Bq/m3( 9~35 Bq/m3) ̿ü dz ǰ (148 Bq/m3) 1/10 ȣ ƴ..
( Bq/m3(ũ) : 1ʿ 缱 1 ٿ 1 Ǵ )
Ư, ̹ dz ֽ ⸦ 90 Ⱓ ǵ, ŷڼ Ȯ .
躸DZⱸ(WHO) ̾ ϴ ι, ϼ̳ ϴ , , ڿ缱̸, ȣ ü Ե رϸ鼭 ļ ıϴ ˷ ִ.
赿 ȯ濬 Ȱȯ ̹ ö غ Ÿ١ ε , ϰ dz ǽ ̴. dz ʵ ֱ ȯϱ⸦ ٶ١ ߴ.
ֽ, ö 20 (Rn) °․ս, ǰ 10% |
2017-02-21(ȭ) 16:49 |
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