Arsenic variation in soil layers in Bandung Regency,Indonesia:A statistical approach for identifying potential sources  

作　　者：Nurul Fahimah Katharina Oginawati Indah Rachmatiah Siti Salami Dasapta Erwin Irawan Diyah Anggraeni Hirundini Rustica Absari Utriweni Mukhaiyar Udjianna Sekteria Pasaribu Kurnia Novita Sari Lira Adiyani 

机构地区：[1]Environmental Management Technology Research Group,Department of Environmental Engineering,Faculty of Civil and Environmental Engineering,Institut Teknologi Bandung,Jl.Ganesha 10,Bandung,40132,West Java,Indonesia [2]Department of Geological Engineering,Faculty of Earth Sciences and Technology,Institut Teknologi Bandung,Jl.Ganesha 10,Bandung,40132,West Java,Indonesia [3]Department of Environmental Engineering,Faculty of Civil and Environmental Engineering,Institut Teknologi Bandung,Jl.Ganesha 10,Bandung,40132,West Java,Indonesia [4]Statistics Expertise Group,Faculty of Mathematics and Natural Sciences,Institut Teknologi Bandung,Jl.Ganesha 10,Bandung,40132,West Java,Indonesia [5]Technical Implementation Unit for Groundwater,Ministry of Public Works and Housing of Indonesia,Jl.Ir.H.Juanda No.193,Bandung,40135,Indonesia

出　　处：《Emerging Contaminants》2024年第3期193-204,共12页新兴污染物（英文）

基　　金：funded by the Research and Community Service Institute(LPPM),Institut Teknologi Bandung,Indonesia through the“Riset Unggulan”Program for the year 2023.

摘　　要：This research investigates the arsenic concentrations in 96 soil samples from a regency in Indonesia using a statistical approach.Soil samples were collected from three depth layers(topsoil[10e20 cm],subsoil[50e60 cm],and deep soil[90e100 cm]),with each layer consisting of 32 samples.Statistical analysis using SPSS was employed to analyze potential arsenic sources based on the proximity of study locations to geothermal system areas,land use,distance from industry,and the presence of study locations on fault lines.The findings indicate that the potential source of arsenic contamination in the soil are suspected to be associated with geothermal system activities and the presence of soil samples on fault lines.The arsenic concentration in locations near to the geothermal system(5-10 km)was 45 times higher(OR=45,95%CI=45e362.57,p<0.01).Arsenic was found to be 3.828 times higher in study areas situated on fault zones(OR=3.828,95%CI=1.507e9.719,p<0.01).Additionally,the research suggests that arsenic in the soil may also originate from anthropogenic activities,such as agriculture and industry,as the highest concentrations were found in subsoil or topsoil layers compared to deep soil.The variation in arsenic concentration from highest to lowest in agricultural soil layers was subsoil>topsoil>deep soil,whereas in residential soil,it was subsoil>deep soil>topsoil.The arsenic concentration variation at near distances from industrial areas was topsoil>subsoil>deep soil,contrasting with medium to far distances from industry(subsoil>deep soil>topsoil).Therefore,these findings can be utilized to prioritize remediation efforts and provide input for future research on arsenic contamination in the region.

关 键 词：Anthropogenic sources Arsenic sources Indonesian soil Natural sources 

分 类 号：S15[农业科学—土壤学]