Groundwater arsenic and fluoride in Rajnandgaon District, Chhattisgarh, northeastern India

Abstract

The groundwater of Ambagarh Chouki, Rajnandgaon, India, shows elevated levels of As and F-, frequently above the WHO guidelines. In this work, the concentrations of As, F-, Na ? , Mg 2? , Ca 2? , Cl-, SO 4 2-, HCO 3-, Fe, dissolved organic carbon (DOC) and dissolved inorganic carbon (DIC) in the groundwater of Ambagarh Chouki are described. The sources of dissolved components in the groundwater are investigated using the cluster and factor analysis. Five factors have been identified and linked to processes responsible for the formation of groundwater chemistry. High concentrations of dissolved As seems to be linked to high concentrations of DOC, suggesting reductive dissolution of ferric oxyhydroxides as arsenic mobilization process. Fluoride is found in shallow depth water, presumably as a consequence of evaporation of water and removal of Ca 2? by precipitation of carbonates.

Competitive Adsorption of Arsenic and Fluoride onto Economically Prepared Aluminum Oxide/Hydroxide Nanoparticles: Multicomponent Isotherms and Spent Adsorbent Management

“…There are many countries around the world like India, China, Mexico, Argentina, and Pakistan, where these contaminants are reported to coexist in groundwater. In India, the co-occurrence of both these contaminants in the groundwater of Rajnandgaon District in the state of Chhattisgarh has been reported to be well above the permissible limits …”

“…In India, the co-occurrence of both these contaminants in the groundwater of Rajnandgaon District in the state of Chhattisgarh has been reported to be well above the permissible limits. 8 Co-occurrence of these pollutants may create more serious effects on human health. Various techniques such as ion exchange, reverse osmosis, chemical reduction, electrodialysis, distillation, biological processes, adsorption, and other processes have been investigated by different research groups to remove arsenic and fluoride from water and reported in literature.…”

Relationship between water, urine and serum fluoride and fluorosis in school children of Jhajjar District, Haryana, India

“…Various studies from different parts of the world showed the excess of fluoride in groundwater: Sri Lanka (Dissanayake 1991), Serbia (Mandinic et al 2010), China (Chen et al 2012, Ethiopia and Malawi (Msonda et al 2007). Excessive groundwater fluoride level was also reported in several states of India: Rajasthan (Choubisa 1997), Tamil Nadu (Gopalakrishnan et al 1991), Uttar Pradesh (Jha et al 2010), Bihar (Verma et al 2016, Chhattisgarh (Patel et al 2015) and Haryana (Singh et al 2007;Meenakshi et al2004;Yadav and Lata 2003).…”

Hydrogeochemical analysis and identification of weathering processes to determine the solute sources in meltwater of Chaturangi glacier, Garhwal Himalaya, India

“…Further, the factor analyses for different variables which were measured from the Chaturangi glacier meltwater for both the years are presented in Table 5. Factor analysis is a useful statistical method that used to explain the relationship between the different analyzed variables by the computation of various multivariate factors and by reducing the complex data to an easily interpretable data (Davis, 2002;Patel et al, 2017). Factor analysis is also called the principal component analysis which is also helpful for the visualization and management of complex system of data, when similarities of data and patterns are not well understood (Valder, Long, Davis, & Kenner, 2012).…”