alexa Groundwater Arsenic Contamination In The Brahmaputra And The Barak Flood Plains Of Assam
ISSN: 2157-7587

Hydrology: Current Research
Open Access

Like us on:
OMICS International organises 3000+ Global Conferenceseries Events every year across USA, Europe & Asia with support from 1000 more scientific Societies and Publishes 700+ Open Access Journals which contains over 50000 eminent personalities, reputed scientists as editorial board members.

Open Access Journals gaining more Readers and Citations

700 Journals and 15,000,000 Readers Each Journal is getting 25,000+ Readers

This Readership is 10 times more when compared to other Subscription Journals (Source: Google Analytics)

Share This Page

Additional Info

Loading
Loading Please wait..
 

3rd International Conference on Hydrology & Meteorology
September 15-16, 2014 Hyderabad International Convention Centre, India

K P Sarma
Accepted Abstracts: Hydrol Current Res
DOI: 10.4172/2157-7587.S1.015
Abstract
Occurrence of groundwater Arsenic (As) in excess of the permissible limit in the fluvial plain of the Brahmaputra and the Barak is known to have affected 7 lakhs of population in 21 of the 27 districts of Assam. The As affected areas in the state are mostly located in the alluvial plains of the rivers Brahmaputra and Barak. In Assam, the Brahmaputra Flood Plains (BFP) and the Barak Valley Plains (BVP) are the two most important river systems which have given rise to extensive alluvial plains on which majority of the population of the state is dependent. Both BFP and the BVP have conditions conducive for the release of As in groundwater. In Assam, the source of As is considered to be geogenic where arsenic is released into the groundwater by reductive dissolution of ferric oxyhydroxides, to which arsenic was adsorbed during fluvial transport. In most of the high groundwater As areas, the level of groundwater Fe is high and a positive relation exists between As and Fe, moreover it was found that DOC (from representative samples) also had positive relation with the groundwater As. The reducing condition of the aquifers is manifested by high Fe, high DOC, low NO3- and low ORP. It is believed that the process responsible for release of As in the groundwater of these two river plains is reductive dissolution of iron hydr(oxides). Both the Brahmaputra as well as the Barak are perennial mountainous rivers with high sediment loads, the mountainous weathered sediments appear to be the ultimate source of the As bearing minerals. It has been established that the ultimate source of As in BFP could be the Himalayan Mountains while the Barail hill range could be the source of As in the BVP.
image PDF   |   image HTML
 
Peer Reviewed Journals
 
Make the best use of Scientific Research and information from our 700 + peer reviewed, Open Access Journals
International Conferences 2017-18
 
Meet Inspiring Speakers and Experts at our 3000+ Global Annual Meetings

Contact Us

 
© 2008-2017 OMICS International - Open Access Publisher. Best viewed in Mozilla Firefox | Google Chrome | Above IE 7.0 version
adwords