期刊论文详细信息
Holos Environment
ELEMENTOS TRAÇO EM SEDIMENTOS URBANOS E SUA AVALIAÇÃO POR GUIDELINES
Gustavo Henrique Merten1  Cristiano Poleto2 
[1] IPH - UFRGS;Univ. Estadual de Maringá - UEM
关键词: Guidelines;    Background;    Sedimentos fluviais em suspensão;    Metais;    Bacia urbana;   
DOI  :  
学科分类:环境科学(综合)
来源: Universidade Estadual Paulista "Julio de Mesquita Filho" * Centro de Estudos Ambientais
PDF
【 摘 要 】

Water resources have been severely damaged by hydrologic alterations and especially by pollutants transferred from the urban watershed. This paper presents results of total acid analysis of suspended sediments in an urban watershed and establishes comparisons with three different sets of Guidelines and local background results. The watershed studied has an area of approximately 0.83 km², and is located in the Porto Alegre metropolitan area, the largest city in southern Brazil. Suspended sediment samples were collected in the watershed outlet from 2003 to 2006. Total acid digestion analyses (HCl �? HF �? HClO4 �? HNO3 ) were performed to obtain the total concentrations of Co, Cdand As.The results of the acid analysis of the suspended sediments and the background values demonstrated the existence of an enrichment process due to the presence of pollutants in the environment, such as the metals Co and Cd, and the variability of the Guidelines.

【 授权许可】

Unknown   

【 预 览 】
附件列表
Files Size Format View
RO201911300357814ZK.pdf 263KB PDF download
  文献评价指标  
  下载次数:5次 浏览次数:8次