Co-deposition and distribution of arsenic and oxidizable organic carbon in the sedimentary basin of West Bengal, India
Sayan Bhattacharya,Gunjan Guha,Dhrubajyoti Chattopadhyay,Aniruddha Mukhopadhyay,Purnendu K. Dasgupta,Mrinal Kumar Sengupta,Uday Chand Ghosh +6 more
TLDR
In this paper, the extent of soil arsenic contamination in agricultural plots in the Bengal Delta through contaminated groundwater irrigation was investigated, and the analysis for estimation of soil OOC was performed by one-way ANOVA to determine significant differences between groups at P<0.05.Abstract:
The study investigated the extent of soil arsenic (As) contamination in agricultural plots in Bengal Delta through contaminated groundwater irrigation. Edaphic levels of As and oxidizable organic carbon (OOC) were tested along a depth gradient (0 to 160 ft) in agricultural plots. Soil samples were collected from surface up to 160 feet depth at every 5 feet. By boreholes drilling and soil arsenic was estimated in ICP-MS. The analysis for estimation of soil OOC was performed. Statistical analyses were performed by one-way ANOVA to determine significant differences between groups at P<0.05. Concentration of As in soil was observed to be highest in surface soil, then decreased with increasing depth till about 40 ft, after which the concentration remained constant. Similar trends were noted for OOC. OOC showed significant (P < 0.05) positive correlations with the As levels. Natural organic matter may enhance the release of As from soils and sediments into the soil solution, and thus can help in As leaching into the groundwater. Detailed investigation of the soil profile and the extent of bioaccumulation in the edible crops are urgently needed in those arsenic-contaminated areas.read more
Citations
More filters
Journal ArticleDOI
Potential use of nanoparticles produced from byproducts of drinking water industry in stabilizing arsenic in alkaline-contaminated soils.
TL;DR: In this paper , the applicability of water treatment residual nanoparticles (nWTRs) with the particle size ranged from 45 to 96 nm was evaluated for its efficacy in reducing arsenic mobility in clayey and sandy contaminated alkaline soils.
Book ChapterDOI
Reductive Dissolution of Fe-oxyhydroxides a Potential Mechanism for Arsenic Release into Groundwater in the Alluvial Plain of River Brahmaputra
S.M. Baviskar,Runti Choudhury +1 more
TL;DR: The mechanism of arsenic mobilization in the Groundwater of the alluvial plains of river Brahmaputra was studied from aqueous and solid-phase geochemical analyses of groundwater samples and sediment cores at various depths from a borehole as mentioned in this paper.
References
More filters
Journal ArticleDOI
An Examination of the Degtjareff Method for Determining Soil Organic Matter, and a Proposed Modification of the Chromic Acid Titration Method
A Walkley,I A Black +1 more
TL;DR: WALKLEY as discussed by the authors presented an extension of the DEGTJAas discussed by the authorsF METHOD for determining soil organic matter, and a proposed modification of the CHROMIC ACID TITRATION METHOD.
Book
Handbook of Geochemistry
TL;DR: The Handbook of Geochemistry Editor-in-chief: K.H. Wedepohl Series Editors: C.W. Shaw, K.K. Turekian, J.M. Zemann as mentioned in this paper
Journal ArticleDOI
Arsenic contamination of Bangladesh paddy field soils: implications for rice contribution to arsenic consumption.
Andrew A. Meharg,M.m. Rahman +1 more
TL;DR: Assessment of arsenic levels in paddy soils throughout Bangladesh showed that arsenic levels were elevated in zones where arsenic in groundwater used for irrigation was high, and where these tube-wells have been in operation for the longest period of time.
Journal ArticleDOI
Arsenic — a Review. Part I: Occurrence, Toxicity, Speciation, Mobility
Monique Bissen,Fritz H. Frimmel +1 more
TL;DR: In this paper, the authors measured arsenic concentrations up to a few milligrams per litre in natural waters and found that in aqueous environment the inorganic arsenic species arsenite (As) and arsenate (As(V)) are the most abundant species.
Journal ArticleDOI
Arsenic calamity in the Indian subcontinent: What lessons have been learned?
Dipankar Chakraborti,Mohammad Mahmudur Rahman,Kunal Paul,Uttam Kumar Chowdhury,Mrinal Kumar Sengupta,Dilip Lodh,C. R. Chanda,Kshitish Chandra Saha,Subhash Chandra Mukherjee +8 more
TL;DR: Groundwater arsenic (As) contamination in West Bengal (WB, India) was first reported in December 1983, when 63 people from three villages of two districts were identified by health officials as suffering from As toxicity, and after years of research, additional affected villages are being identified on virtually every new survey.