도쿄에서 아메리슘241 검출(세슘에 비해 20배의 파괴력)

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BORDER-TOP: 1px solid; DISPLAY: none; FONT-SIZE: 8pt; LEFT: 5px; BORDER-LEFT: 1px solid; CURSOR: pointer; BORDER-BOTTOM: 1px solid; POSITION: absolute; TOP: 5px; BACKGROUND-COLOR: white; TEXT-ALIGN: center" [안내]태그제한으로등록되지않습니다-xx[안내]태그제한으로등록되지않습니다-xx[안내]태그제한으로등록되지않습니다-xxonclick="imgScrap1(event, 122710);"><img id="dc_image_122710_but" src="https://img1.daumcdn.net/relay/cafe/original/?fname=http%3A%2F%2Fwstatic.dcinside.com%2Fgallery%2Fskin%2Fskin_new%2Fgall_bt.gif"> </div></div> <div id="bgRela" style="WIDTH: 100%"><span style="FONT-SIZE: 12pt">토양 샘플 위치 :일본 도쿄 하치 오지, (후쿠시마원전으로부터 250km) 토양 샘플 날짜 : 2011년 7월 29일 토양 시험 날짜 : 2011년 8월 31일 토양 샘플 사이즈 (단위) : 50g 단위당 Americium-241@3.7 becquerels (단위 = 50g)이 측정이 토양 샘플 74 베크렐 / kg당  kg으로 계량하기 위해 20를 곱해야합니다. 아메리슘 241은 반감기 433년 주로 원자로에서 생성 신형 원자폭탄의 연료로 사용됨.(넵투늄, 아메리슘)   </span><span style="FONT-SIZE: 12pt"><a href="http://ruliweb.daum.net/ruliboard/read.htm?table=society_news&num=308927" target="_blank">http://ruliweb.daum.net/ruliboard/read.htm?table=society_news&num=308927</a></span><span style="FONT-SIZE: 12pt"> </span><span style="FONT-SIZE: 12pt"><a href="http://www.scribd.com/doc/64948256/Tokyo-Hotspot-soil-analysis" target="_blank">http://www.scribd.com/doc/64948256/Tokyo-Hotspot-soil-analysis</a></span><span style="FONT-SIZE: 12pt"> </span><br> <p><strong><font color="#ff0000"><span style="FONT-SIZE: 12pt">아메리슘이란?</span></font></strong></p><br> <p><span style="FONT-SIZE: 12pt"> </span></p><br> <p><font size="3"><span ?font-size:="" 11pt?=""><span style="FONT-SIZE: 12pt">아사히</span></span></font><span style="FONT-SIZE: 12pt" ?font-size:="" 11pt?="">(朝日)</span><font style="FONT-SIZE: 12pt" ?font-size:="" 11pt?="">신문</font><span style="FONT-SIZE: 12pt" ?font-size:="" 11pt?="">에 따르면 큐륨과 아메리슘은 <U>자연계에는 존재하지 않는 방사성 물질로</U>, 원자로 내에서 핵반응을 일으키는 과정에서 생성된 것으로 보인다. 이중 큐륨 242는 ㎏당 4베크렐(Bq)이 검출됐는데 이는 후생노동성이 최근 정한 </span><font style="FONT-SIZE: 12pt" ?font-size:="" 11pt?="">식품</font><span style="FONT-SIZE: 12pt" ?font-size:="" 11pt?="">에 대한 방사성 물질 기준치에서 빠져있어 더욱 </span><font style="FONT-SIZE: 12pt" ?font-size:="" 11pt?="">문제</font><span style="FONT-SIZE: 12pt" ?font-size:="" 11pt?="">가 되고 있다. 큐륨과 아메리슘은 알파선을 방출하는 물질로, 기존 요오드나 <U><strong><u>세슘이 방출하는 </U></u></strong></span><font style="FONT-SIZE: 12pt" ?font-size:="" 11pt?=""><strong><u><U>감마</U></u></strong></font><span style="FONT-SIZE: 12pt" ?font-size:="" 11pt?=""><strong><u><U>선에 비해 파괴력이 20배나 강하다</u></strong></U>. 이와 유사하게 알파선을 방출하는 플루토늄의 경우 </span><font style="FONT-SIZE: 12pt" ?font-size:="" 11pt?="">음료수</font><span style="FONT-SIZE: 12pt" ?font-size:="" 11pt?="">와 </span><font style="FONT-SIZE: 12pt" ?font-size:="" 11pt?="">우유</font><span style="FONT-SIZE: 12pt" ?font-size:="" 11pt?="">는 ㎏당 1Bq, 곡류는 ㎏당 10Bq의 기준치를 정해놓고 있다.</span><span style="FONT-SIZE: 12pt"> </span><span style="FONT-SIZE: 12pt" ?font-size:="" 11pt?="">다른 방사성 물질에 비해 무거워 </span><font style="FONT-SIZE: 12pt" ?font-size:="" 11pt?="">투과</font><span style="FONT-SIZE: 12pt" ?font-size:="" 11pt?="">력이 약하고 공기중에서 확산되는 속도도 느리지만, 일단 호흡 등을 통해 몸 속으로 </span><font style="FONT-SIZE: 12pt" ?font-size:="" 11pt?="">침</font><span style="FONT-SIZE: 12pt" ?font-size:="" 11pt?="">투하면 뼈나 폐에 달라 붙어 <U>발암성</U>이 강해지는 특성을 가진다. </span></p><br> <p><span style="FONT-SIZE: 12pt"><U></span><span style="FONT-SIZE: 12pt" ?font-size:="" 11pt?="">아메리슘 피폭으로 인해 </span><font style="FONT-SIZE: 12pt" ?font-size:="" 11pt?="">백혈병</font><span style="FONT-SIZE: 12pt" ?font-size:="" 11pt?="">, 악성 </span><font style="FONT-SIZE: 12pt" ?font-size:="" 11pt?="">림프종</font><span ?font-size:="" 11pt?=""><span style="FONT-SIZE: 12pt"> 등과 암에 걸린 환자와 기형아 출생 등이 발생한다</span></span></p></div></span></div></td></tr></tbody></table></div>