SciELO - Scientific Electronic Library Online

 
vol.44 issue7Positioning and number of nutritional levels in dose-response trials to estimate the optimal-level and the adjustment of the modelsEnergy efficiency of a tractor using two configurations of power take-off author indexsubject indexarticles search
Home Pagealphabetic serial listing  

Services on Demand

Journal

Article

Indicators

Related links

Share


Ciência Rural

Print version ISSN 0103-8478

Abstract

ISLAM, Jahidul et al. Assessing groundwater stoichiometric composition and its suitability in Northwestern Bangladesh. Cienc. Rural [online]. 2014, vol.44, n.7, pp.1210-1218. ISSN 0103-8478.  https://doi.org/10.1590/0103-8478cr20130712.

Groundwater quality analyses included pH, EC, cations (Ca2+, Mg2+, Na+, K+, Zn2+, Cu2+, Mn2+, Fe3+ and As3+), anions (CO32-, HCO3-, NO3-, SO42-, PO43- and Cl-) and TDS of northwestern Bangladesh. The samples contained Ca2+, Mg2+ and Na+ as the dominant cations and HCO3- and Cl- were the dominant anions. Ratios of major cations and anions of water samples suggest the predominance of Ca and Mg-containing minerals over Na-containing minerals. According to TDS and SAR values, all samples were classed as 'freshwater' and 'excellent' categories. The SSP of all waters was under 'excellent' and 'good' classes. All samples were within 'soft' class regarding hardness with 'suitable' RSC. Based on As3+, Zn2+, Mn2+, Fe3+, SO42-, NO3- and Cl- all groundwater samples were within the 'safe' limit for drinking but unsuitable for some industries for specific ions.

Keywords : groundwater; suitability; northwestern Bangladesh.

        · abstract in Portuguese     · text in English     · English ( pdf )