95Zr在海水、底质及海洋生物间的迁移、富集和分布
Transference, concentration and distribution of 95Zr among seawater, sediment and marine organisms
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摘要: 在模拟海洋环境中,海水中95Zr的比活度在试验前期快速下降,在最初4h内下降了90%以上,此后呈缓慢递减趋势.底质中95Zr的比活度在试验前期逐渐上升,至48h达到最大值,此后随时间逐渐降低.半褶织纹螺螺壳富集95Zr的能力显著强于螺肉,螺壳和螺肉的富集系数分别为10.32和4.68.大弹涂鱼各组织器官中,根据富集量,对95Zr的富集能力最强的是内脏,其次是鳃和鳍,最弱的是肌肉,次弱的是脊椎.大弹涂鱼除鳃外,其余各组织器官的富集系数均小于1.半褶织纹螺对95Zr的富集能力比大弹涂鱼更强.Abstract: In simulated marine environment,the specific activity of 95Zr in water decreased rapidly in the former period of the exper iment.In the first 4 h of the experiment,the concentration of 95Zr in water decreased more than 90% of the original value,and then slowly declined.The specific activity of 95Zr in sediment appeared in increasing tendency in the former period of the experiment,reached concentrating peak at 2d and decreased afterwards.Shell of Narssarius semiplicatus has much stronger capability on concentrating 95Zr than muscle.The concentration factors of shell and muscle are 10.32 and 4.68,respectively.According to the concentrated quantity,viscer a has the strongest capability on concentrating 95Zr among the study tissues/or gans in Boleop hthalmus pectinirostris,and the followings are gill and fin.Muscle of the fish is the organ that has the weakest capability on concentrating 95Zr,and the following is vertebra.Exceptgill,the concentration factors of the other organs in Boleophthalmus pectinirostris are all smaller than 1.Narssarius semiplicatus has much stronger capability on concentrating 95Zr than Boleophthalmus pectinirostris.
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史建君,孙锦荷,陈子元,等.14C-呋喃丹在模拟鱼-萍水生生态系统中的分配[J].核技术,1996,19(3):190-192. 陈舜华,徐利生,赵小奎,等.几种海洋软体动物对低放射性水平65Zn和134Cs的积累、分布和排泄[J].核农学报,1993,7(1):45-51. 赵文虎,李传昭.鲤鱼对125I的吸收和积累[J].核农学通报,1995,16(4):175-177. 蔡福龙,陈英,许丕安,等.放射性核素在海水、底质及海洋生物间的转移.Ⅰ.核素进入海水后的初始状态[J].环境科学学报,1985,5(2):195-199. 蔡福龙,陈英,许丕安,等.放射性核素在海水、底质及海洋生物间的转移.Ⅲ.核素在生物体内分布的生态学意义[J].环境科学学报,1985,5(4):429-438. 刘发义,王仁美,李世效.203HgCl2在紫贻贝(Mytilus edulis)体内的累积和结合以及对其影响的实验研究[J].环境科学学报,1981,1(1):51-57. 李世效,王仁美,刘发义.60Co和137Cs在紫贻贝(Mytilus edulis)体内分布的初步研究[J].环境科学学报,1981,1(2):193-196. 王连生,王炳坤,孔令仁,等.鲤鱼体内110m银的积累和组织分布[J].中国环境科学,1981,1(5):23-28,37. 商照荣,赵文虎.147pm在鲤鱼体内的分布动力学[J].核农学通报,1995,16(3):182-185. 蔡福龙,陈英,许丕安,等.大弹涂鱼(Boleophthalmus pectinirostris)作为放射性核素指示物的研究[J].环境科学学报,1992,12(3):282-287. MAN C K,KWOK Y H.Uptake of 137Cs by freshwater fish[J].Applied Radiation and Isotopes,2000,52:237-241. TAKEDA H,IWAKURA T.Incorporation and distribution of tritium in rats exposed to tritiated rice or tritiated soybean[J].J Radiat Res,1992,33:309-318. 陈寿椿.重要无机化学反应[M].第3版.上海:上海科学技术出版社,1994. 陈晖,史建君.95Zr水样的测量方法研究[J].上海交通大学学报(农业科学版),2001,19(2):121-125. 刘立丽,史建君,陈晖,等.放射性锆在红壤中的淋溶特性研究[J].上海交通大学学报(农业科学版),2001,19(2):117-120. 齐钟彦,马锈同,王祯瑞,等.黄渤海软体动物[M].北京:农业出版社,1989. 苏锦祥.鱼类学与海水鱼类养殖[M].第2版.北京:农业出版社,1995. -
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