Assessing arsenic sources in landfill areas: a case study in Sardinia

IF 1 4区地球科学 Q4 GEOSCIENCES, MULTIDISCIPLINARY

Italian Journal of Geosciences Pub Date : 2019-02-01 DOI:10.3301/IJG.2018.30

F. Frau, R. Cidu, M. Casu, Andrea Soriga

引用次数: 4

Abstract

Concentrations of dissolved As can be related either to natural processes or anthropogenic activities. The aim of this study was to distinguish natural processes from potential anthropogenic effects on As occurrence in landfill areas. The study area is located in Central Sardinia and is characterized by Upper Pleistocene and Holocene sediments (sand and gravel with silt-clay matrix and local occurrence of thin ochreous colour levels; marsh deposits rich in organic matter and vegetal residues). The study area hosts an exhausted landfill where construction and demolition debris were disposed.The mineralogical composition of solid materials was characterized by quartz, feldspars and clay minerals. Concentrations of As were within the ranges reported in sediments and soils, except one sample that showed 46 mg/kg As.The waters showed near-neutral pH, variable electric conductivity (

查看原文本刊更多论文

评估垃圾填埋场的砷来源:撒丁岛的案例研究

溶解砷的浓度可能与自然过程或人类活动有关。本研究的目的是区分自然过程和潜在的人为影响对填埋区砷的发生。研究区域位于撒丁岛中部，以上更新世和全新世沉积物为特征（砂和砾石，含粉砂质粘土基质，局部呈薄赭色；沼泽沉积物富含有机物和植物残留物）。研究区域有一个废弃的垃圾填埋场，用于处理建筑和拆迁垃圾。固体物质的矿物学组成以石英、长石和粘土矿物为特征。沉积物和土壤中砷的浓度在报告的范围内，只有一个样本显示砷含量为46 mg/kg。这些水域的pH值接近中性，电导率可变(

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Italian Journal of Geosciences GEOSCIENCES, MULTIDISCIPLINARY-

CiteScore

2.90

自引率

11.10%

发文量

审稿时长

>12 weeks

期刊介绍： The Italian Journal of Geosciences (born from the merging of the Bollettino della Società Geologica Italiana and the Bollettino del Servizio Geologico d''Italia) provides an international outlet for the publication of high-quality original research contributions in the broad field of the geosciences. It publishes research papers, special short papers, review papers, discussion-and-replies for their rapid distribution to the international geosciences community. The journal is firstly intended to call attention to the Italian territory and the adjacent areas for the exceptional role they play in the understanding of geological processes, in the development of modern geology and the Earth sciences in general. The main focus of the journal is on the geology of Italy and the surrounding sedimentary basins and landmasses, and on their relationships with the Mediterranean geology and geodynamics. Nevertheless, manuscripts on process-oriented and regional studies concerning any other area of the World are also considered for publication. Papers on structural geology, stratigraphy, sedimentology, basin analysis, paleontology, ecosystems, paleoceanography, paleoclimatology, planetary sciences, geomorphology, volcanology, mineralogy, geochemistry, petrology, geophysics, geodynamics, hydrogeology, geohazards, marine and engineering geology, modelling of geological process, history of geology, the conservation of the geological heritage, and all related applied sciences are welcome.