{"title":"Assessing arsenic sources in landfill areas: a case study in Sardinia","authors":"F. Frau, R. Cidu, M. Casu, Andrea Soriga","doi":"10.3301/IJG.2018.30","DOIUrl":null,"url":null,"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 (","PeriodicalId":49317,"journal":{"name":"Italian Journal of Geosciences","volume":" ","pages":""},"PeriodicalIF":1.0000,"publicationDate":"2019-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.3301/IJG.2018.30","citationCount":"4","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Italian Journal of Geosciences","FirstCategoryId":"89","ListUrlMain":"https://doi.org/10.3301/IJG.2018.30","RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"GEOSCIENCES, MULTIDISCIPLINARY","Score":null,"Total":0}
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 (
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.
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