Depositional environment in and around Tamiraparani estuary, and off Tuticorin, Tamil Nadu, India: clues from grain size studies

Solai, A.; Gandhi, M. Suresh; Chandrasekaran, K.; Mohan, V. R.

doi:10.1007/s12517-012-0520-y

Cited by 7 publications

(2 citation statements)

References 5 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Rural/urban sewage effluents, agricultural wastes and warm-blooded animal feces also contribute substantially to fecal pollution of the river basin. Earlier, the river basin was studied with different aspects like geochemistry, heavy metals, morphometric evaluation and trace organic pollutants (Ramesh et al 2002;Ravichandran 2003;Kumarasamy et al 2012;Solai et al 2013;Magesh and Chandrasekar 2012). Geographical Information System (GIS) provides a potential tool for an effective understanding and the interpretation of complicated hydrological processes in river water quality assessments (Wilson et al 2000;Malik and Nadeem 2011).…”

Section: Introductionmentioning

confidence: 99%

Microbial Effects on Geochemical Parameters in a Tropical River Basin

et al. 2015

View full text Add to dashboard Cite

Domestic sewage discharge and live stocks are the main sources of pathogenic contaminations in rivers. The river Tamiraparani in southern India is affected by such nonpoint source pollution throughout the year. We collected a total of 264 samples (water and sediment) from 22 locations in 2-month intervals during a period of 1 year. Bacteriological analysis such as total viable counts (TVC), total coliform (TC), total Streptococcus (TS), Vibrio like organisms (VLO) and five pathogens as well as 12 geochemical parameters (pH, EC, TDS, Cl, HCO 3 , Ca, Mg, Na, K, PO 4 , other nutrients and total hardness) were studied. Principal Component Analysis (PCA) and correlation analysis proved that microbial communities were separated with geochemical parameters in order to gain their efficacy. Factor analysis confirmed separate loading rates of microbial (32.3 %) and geochemical (32.7 %) parameters representing 'allochthonousgeochemical' and 'fecal mattersmicrobial' interactions, respectively. We used geographical information systems (GIS) for mapping the occurrence of indicator organisms from non-point sources throughout the river basin.

show abstract

Section: Introductionmentioning

confidence: 99%

Microbial Effects on Geochemical Parameters in a Tropical River Basin

et al. 2015

View full text Add to dashboard Cite

show abstract

“…Further, it is observed that the concentration of major ions in groundwater of the area is high at many locations leading to unsuitability of groundwater for drinking, irrigation and domestic purposes. Many researchers had worked on the groundwater of Tuticorin District on various concepts, such as the land use and land cover pattern along the metal pollution in groundwater, to highlight the effect of the industrial (SIPCOT) effluents on Thoothukudi City (Puthiyasekar et al 2010), trace element concentration in the groundwater in Tuticorin City (Ravichandran 2003), coastal transformation of Tuticorin City (Ramanujam and Sudarsan 2003), hydrological influences on the water quality in Tamirabarani basin, depositional environment in and around Tamirabarani estuary of Tuticorin (Solai et al 2012) and hydrochemial characteristic of the coastal aquifer and aquifer characteristic along with its modeling around an industrial complex of Tuticorin district (Mondal et al 2009). Mondal et al (2008), Singaraja et al (2013), Singaraja (2015) and Selvam et al (2016) identified the groundwater quality to be rapidly deteriorating.…”

Section: Introductionmentioning

confidence: 99%

Relevance of water quality index for groundwater quality evaluation: Thoothukudi District, Tamil Nadu, India

Singaraja

2017

Appl Water Sci

View full text Add to dashboard Cite

The present hydrogeochemical study was confined to the Thoothukudi District in Tamilnadu, India. A total of 100 representative water samples were collected during pre-monsoon and post-monsoon and analyzed for the major cations (sodium, calcium, magnesium and potassium) and anions (chloride, sulfate, bicarbonate, fluoride and nitrate) along with various physical and chemical parameters (pH, total dissolved salts and electrical conductivity). Water quality index rating was calculated to quantify the overall water quality for human consumption. The PRM samples exhibit poor quality in greater percentage when compared with POM due to dilution of ions and agricultural impact. The overlay of WQI with chloride and EC corresponds to the same locations indicating the poor quality of groundwater in the study area. Sodium (Na %), sodium absorption ratio (SAR), residual sodium carbonate (RSC), residual sodium bicarbonate, permeability index (PI), magnesium hazards (MH), Kelly's ratio (KR), potential salinity (PS) and Puri's salt index (PSI) and domestic quality parameters such as total hardness (TH), temporary, permanent hardness and corrosivity ratio (CR) were calculated. The majority of the samples were not suitable for drinking, irrigation and domestic purposes in the study area. In this study, the analysis of salinization/ freshening processes was carried out through binary diagrams such as of mole ratios of SO 2À 4 /Cl -and Cl -/EC that clearly classify the sources of seawater intrusion and saltpan contamination. Spatial diagram BEX was used to find whether the aquifer was in the salinization region or in the freshening encroachment region.

show abstract