Arsenic and heavy metals contamination of soil and vegetation in the vicinity of mines and smelters

来源 :第四届城市、工业、交通和矿山土壤国际会议(The 4th International Conference on Sol | 被引量 : 0次 | 上传用户:lyfwgc2005
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
  Soils and plants contamination of arsenic and heavy metals was investigated from the vicinity of the typical nonferrous mines and smelters in Changsha,Zhuzhou,Hengyang,and Chenzhou districts,Hunan province of China,and the data was analyzed through the principle component analysis,multivariate techniques and correlative analysis by SPSS 11.0 and Excel 2003.The results show that the abandoned soil is seriously by Cd,Pb,As,Cu,and Zn and heavily relative with the humans extensive activities of mining and associated smelting,and the mean concentrations of Cd,Pb,As,and Zn are far exceed the Ⅲ level of the national standards for soil environmental quality of China,the irrigated soils,especially the paddy soils are heavily polluted by Cd,and pose significantly characteristics of co-contamination,too.The content of Cd,Pb,As,Cu,Zn and Cr in vegetables,and of Cd,Pb and Zn in rice from the studied areas are far exceeded the threshold level of safety food of China,in particularly,the content of Cd,Pb,and As in vegetables and,Cd and Pb in rice is potential-heavily risk for humans health.The samples of wildings in the vicinity of mines and smelters are contaminated seriously,too.However,several special wildings,grow rapidly with big biomass,normal metals-accumulation with strong tolerance for Cd,Pb,and As,and are potential to apply in eco-remediation engineering for the metals-contaminated soils in future.
其他文献
目的:探讨老年心力衰竭患者血浆galectin-3表达与心脏结构、功能的关系。方法:选取2018年7月至2020年1月新疆医科大学第一附属医院收治的老年心力衰竭患者102例,美国纽约心脏
  There have been sudden changes in the urban environment due to rapid urbanization all over the world.Seoul which is the international metropolis with histor
会议
“芳兰移取遍中林,余地何妨种玉簪,更乞两丛香百合,老翁七十尚童心”。百合既是一种美丽的花卉,又是一种营养丰富而味美的多年生蔬菜,此外还可入药。古往今来,普遍受到人们的喜爱。
  Presentation is focused on the main results of the pilot urban soils research in Slovakia (Urban soils as Environmental factor of living quality in cities (
会议
本文综述了专业认证的概念,国内外专业认证的模式和发展概况,以及高等教育专业认证的意义和标准,以期为保障我国高等教育质量和完善我国教育领域专业认证提供借鉴。
本文通过检索、整理、分析疲劳量表在COPD患者呼吸康复中的应用现状,旨在引起临床医护人员及研究者对COPD患者呼吸康复中疲劳问题的重视,为COPD患者在呼吸康复中疲劳评估量表的
在党的十七大代表中,有一位“院士代表”显得格外与众不同,他叫黄伯云。黄伯云,中国工程院院士、中南大学校长,还领导着国家“863”新材料技术委员会,同时,还担任4家校办公司
生姜是一种耐荫湿、喜温和、怕渍涝作物。一般栽培方式易发姜瘟病,严重的可使生姜根茎腐烂达50%以上。下面介绍对生姜腐烂病预防有良好效果且能达到高产的生姜栽培技术。 Gi
  As a result of investigations authors discriminate the model series of transformation (evolution) of urban soils.The series depend on soil forming condition
会议
  In the last decades urban soils have been studied intensively (Baize and Rossignol,1992; Beyer et al.,1995; Burghardt,2000; Craul,1992;Hollis,1991; Thornton
会议