Spatial variability of arsenic in Indo-Gangetic basin of Varanasi and its cancer risk assessment

Copyright © 2019 Elsevier Ltd. All rights reserved..

The Indo-Gangetic alluvium is prime region for intensive agricultural. In some areas of this region, groundwater is now becoming progressively polluted by contamination with poisonous substances like arsenic. Intensive irrigation with arsenic contaminated ground water in dry spell results in the formation of As(III) which is more toxic. Thus groundwater quality assessment of Gangetic basin has become essential for its safer use. Therefore we under took study on the spatial variability of arsenic by collecting georeferred groundwater samples on grid basis from various water sources like dug well, bore and hand pumps covering the river bank region of Ganga basin. Water quality was investigated through determination pH, EC, TDS, salinity, Na, K, Ca, Mg, SAR, SSP, CO3, HCO3, RSC, Cl, As, Fe, Zn, Mn and Cu, etc. Results pointed severe As contamination in ground water of three sites of the study area. ARC GIS software is now able to process maps along with tabular data and compare them well, to provide the spatial visualization of information and using this tool, the Geographical Information System (GIS) of arsenic was developed. It was noticed from spatial maps that concentration of arsenic was more near the meandering points of Ganga.

Medienart:

E-Artikel

Erscheinungsjahr:

2020

Erschienen:

2020

Enthalten in:

Zur Gesamtaufnahme - volume:238

Enthalten in:

Chemosphere - 238(2020) vom: 15. Jan., Seite 124623

Sprache:

Englisch

Beteiligte Personen:

Chattopadhyay, Arghya [VerfasserIn]
Singh, Anand Prakash [VerfasserIn]
Singh, Satish Kumar [VerfasserIn]
Barman, Arijit [VerfasserIn]
Patra, Abhik [VerfasserIn]
Mondal, Bhabani Prasad [VerfasserIn]
Banerjee, Koushik [VerfasserIn]

Links:

Volltext

Themen:

ARC GIS
Arsenic
Groundwater quality
Ions
Journal Article
N712M78A8G
Risk assessment
Spatial variability map
Varanasi
Water Pollutants, Chemical

Anmerkungen:

Date Completed 09.01.2020

Date Revised 09.01.2020

published: Print-Electronic

Citation Status MEDLINE

doi:

10.1016/j.chemosphere.2019.124623

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM301531684