中国农业科学院农业信息研究所 中国农学会
Agricultural Information Institute of CAAS China Association of Agricultural Science Societies
En
Ch
中国农业科学院农业信息研究所 中国农学会 主办

AI检索

订阅

返回顶部
当前位置: 首页 > 文章 > 天津潮间带泥螺(Bullacta exarata)对重金属镉的累积与释放特征 农业环境科学学报 2010,29 (09) 1687-1692
Position: Home > Articles > Accumulation and Elimination Characteristics of Heavy Metal Cadmium in Bullacta exarata from Intertidal Zone of Tianjin,China Journal of Agro-Environment Science 2010,29 (09) 1687-1692

天津潮间带泥螺(Bullacta exarata)对重金属镉的累积与释放特征

作  者：
陈楠;刘宪斌;田胜艳;刘占广;孙莲娜;李国锋
单  位：
天津市海洋资源与化学重点实验室天津科技大学
关键词：
泥螺;重金属;镉;累积;释放
摘  要：
生物对重金属的累积与释放实验对研究生物修复、污染物生态毒性和环境风险评价有着十分重要的意义。通过对天津潮间带底栖生物泥螺进行室内镉累积与释放实验,研究了泥螺体和肝脏对镉的累积与释放特征。整个实验过程分为累积和释放两个阶段,实验样品经冷冻、干燥、研磨、混匀和称量后,采用原子吸收分光光度法进行测定。结果表明,泥螺对镉的累积周期为14 d,其身体和肝脏中镉的质量分数均呈现先升高后降低的趋势,在第7 d达到最大值,其中肝脏的累积能力要大于身体;泥螺对镉的释放周期为12 d,在第9 d趋于稳定。泥螺对镉的累积与释放不仅与其自身的生活习性有关,还与其栖息环境密切相关。在自然环境中,应当严格控制镉的人为输入,尤其是含镉工业废水的排放。
译  名：
Accumulation and Elimination Characteristics of Heavy Metal Cadmium in Bullacta exarata from Intertidal Zone of Tianjin,China
作  者：
CHEN Nan,LIU Xian-bin,TIAN Sheng-yan,LIU Zhan-guang,SUN Lian-na,LI Guo-feng(Tianjin Key Laboratory of Marine Resource and Chemistry,Tianjin University of Science & Technology,Tianjin 300457,China)
关键词：
Bullacta exarata;heavy metal;cadmium;accumulation;elimination
摘  要：
Cadmium accumulation and elimination of organism have important influence on bioremediation,pollutant ecological toxicity and environment risk assessment.The characteristics of cadmium accumulation and elimination in Bullacta exarata' body and liver,which were from the intertidal zone of Tianjin,were studied in our laboratory.The entire experiment included two parts,accumulation and elimination.The samples were frozen,dried,grinded,blended and weighed,then measured by Atomic Absorption Spectrometry(AAS).The result showed that the accumulation period was 14 d.The mass fractions of cadmium in body and liver were from high to low,the maximum was at 7 d.The accumulation in liver was greater than that in body.And,the depuration period was 12 d,the stable point was at 9 d.The accumulation of cadmium in Bullacta exarata related not only with their life behaviour but also with their habitats.In the natural environment,the human in-put of cadmium should be strictly controlled,particularly the discharge of the cadmium industrial waste water.

相似文章

导出引用
计量
文章访问数: 10
HTML全文浏览量: 0
PDF下载量: 0

所属期刊

推荐期刊

友情链接Friendly link
农业信息研究所Agricultural information institute 农业智能知识服务平台Agricultural intelligent knowledge service platform 农业学术服务平台Agricultural Knowledge Service System 中国知网CNKI 维普网VIP 万方WANFANG DATA
联系我们Contact us

电话Tell：010-82109652-808

邮箱E-mail：agrijournal@caas.cn

服务Service
关于我们About us 意见建议Opinions and suggest
版权说明Copyright
单位：中国农业科学院农业信息研究所 中国农学会 © 2017中国农业科学院农业信息研究所 ICP备案号：京ICP备09089781号-46