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1、HowRadiationThreatensHealth如何辐射威胁健康AsworriesgrowoverradiationleaksatFukushima,isitpossibletogaugetheimmediateandlastinghealtheffectsofradiationexposure?Here'sthesciencebehindradiationsicknessandotherthreatsfacingJapan。由于担心福岛核电站辐射泄漏,有可能测量辐射的直接和持久的健康影响?这是背后的科学面
2、临辐射病和其他威胁日本。Thejapanearthquakeandtsunamionmatch11,apowerful,magnitude9.0quakehitnortheasternjapan,triggeringatsunamiwith10-meter-highwavesthatreachedtheU.S.Westcoast.Here’sthesciencebehindthedisaster.在比赛11日日本地震和海啸,强大,日本东北部发生9.0级地震,地震引发的海啸与西方10-meter-high波,达到美
3、国coast.Here灾难背后的科学。ThedevelopingcrisisattheFukushimaDaiichinuclearpowerplantinthewakeoftheMarch11earthquakeandtsunamihasraisedconcernsoverthehealtheffectsofradiationexposure:Whatisa"dangerous"levelofradiation?Howdoesradiationdamagehealth?Whataretheconsequence
4、sofacuteandlong-termlow-doseradiation?发展危机福岛第一核电站在3月11日地震和海啸后引发了担忧辐射对健康的影响:“危险”水平的辐射是什么?如何辐射损伤健康?急性和长期低剂量辐射的后果是什么?Thoughradioactivesteamhasbeenreleasedtoreducepressurewithinthewreckedcomplex'sreactorsandtherehasbeenadditionalradiationleakagefromthethreeexplos
5、ionsthere,theresultingspikesinradiationlevelshavenotbeensustained.Thehighestradiationlevelreportedthusfarwasapulseof400millisievertsperhouratreactorNo.3,measuredat10:22A.M.localtimeMarch15.(Asievertisaunitofionizingradiationequalto100rems;aremisadosageunitofx
6、-rayandgamma-rayradiationexposure.)Thelevelofradiationdecreasesdramaticallyasdistancefromthesiteincreases.RadiationlevelsinTokyo,about220kilometerstothesouthwest,havebeenreportedtobeonlyslightlyabovenormal.尽管放射性蒸汽被释放减少受损的反应堆内压力和有额外的辐射泄漏的三次爆炸,产生的辐射水平激增并不持久。迄今为
7、止,报道的最高辐射水平是每小时400毫西弗的脉冲在三号反应堆,以当地时间3月15日上午十。(译者按电离辐射的单位等于100雷姆;快速眼动是x射线和伽马射线辐射剂量单位。)的辐射水平显著降低站点的距离增加,辐射水平在东京,西南约220公里处,已报告仅略高于正常。"Wearenowherenearlevelswherepeopleshouldbeworried,"saysSusanM.Langhorst,ahealthphysicistandtheradiationsafetyofficeratWashingtonU
8、niversityinSaintLouis.“我们离辐射人们应该担心,”Susanm.Langhorst说健康物理学家与辐射安全官在圣路易斯华盛顿大学。AccordingtoAbelGonzalez,vicechairmanoftheInternationalCommissiononRadiologicalProtectionwhostudiedthe1986Cherno
