Groundwater contamination by nitrates in the city of Konya, (Turkey): A GIS perspective

Nas, Bilgehan; Berktay, Ali

doi:10.1016/j.jenvman.2005.05.010

Cited by 89 publications

(51 citation statements)

References 11 publications

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“…The mean ferrous iron ( Nitrate concentration in groundwater and surface water is normally low but can reach high levels as a result of agricultural runoff, refuge dump runoffs, or contamination with human or animal wastes (Nas and Berktay 2006) …”

Section: Major Ion Chemistrymentioning

confidence: 99%

Water quality index to determine the surface water quality of Sankey tank and Mallathahalli lake, Bangalore urban district, Karnataka, India

2013

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Section: Major Ion Chemistrymentioning

confidence: 99%

Water quality index to determine the surface water quality of Sankey tank and Mallathahalli lake, Bangalore urban district, Karnataka, India

2013

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“…Anthropogenic contamination of waterways constitutes a major problem in both developing and developed countries around the world (Barrett et al 1998;Gelberg et al 1999;Tilman et al 2002;Grande et al 2003;Fytianos and Christophoridis 2004;Camargo and Alonso 2006;Chen et al 2006;Nas and Berktay 2006;Chang 2008;Ma et al 2009). Declining surface water quality directly affects human and ecosystem health, which further impacts economic development and social wellbeing.…”

Section: Introductionmentioning

confidence: 99%

Spatial and temporal variations of nitrogen pollution in Wen-Rui Tang River watershed, Zhejiang, China

Mei

Zhang

et al. 2010

Environ Monit Assess

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Water quality has degraded dramatically in Wen-Rui Tang River watershed, Zhejiang, China, especially due to rapid economic development since 1995. This paper aims to assess spatial and temporal variations of the main pollutants (NH + 4 -N, TN, BOD 5 , COD Mn , DO) of water quality in Wen-Rui Tang River watershed, using the geographic information system, cluster analysis (CA) and principal component analysis (PCA). Results showed that concentrations of BOD 5 , COD Mn , NH + 4 -N, and TN were significantly higher in tertiary rivers than in primary and secondary rivers. From April 2006 to March 2007, the concentrations of NH + 4 -N (2.25-57.9 mg/L) and TN (3.78-70.4 mg/L) in all samples exceeded Type V national water quality standards (≥2 mg/L), while 5.3% of all COD Mn (1.83-27.5 mg/L) and 4 -N and TN in tertiary rivers had a significant negative correlation with 5-day cumulative rainfall and monthly rainfall, while there were no significant correlations in primary and secondary rivers. The results of CA and spatial analysis showed that the northern part of WenRui Tang River watershed was the most seriously polluted. This region is characterized by the high population density and industrial and commercial activities. The PCA and spatial analysis indicated that the degraded water quality is caused by anthropogenic activities and poor wastewater management.

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“…Sulphate is generally non-toxic but consumption of water with high amount of sulphate causes intestinal problems in normal humans (Heizer et al 1997). Nitrate occurs naturally and due to its solubility and anionic form, its mobility in groundwater is very high and hence it is very essential to analyze the nitrate in water due its well known adverse effects on health (Nas and Ali 2006). The prescribed limit of nitrate concentration in drinking water recommended by BIS is 45 mg/l.…”

Section: Resultsmentioning

confidence: 99%

Water quality evaluation of Himalayan Rivers of Kumaun region, Uttarakhand, India

Seth¹,

Mohan²,

Singh³

et al. 2014

Appl Water Sci

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Water quality of Himalayan rivers has been steadily deteriorating over several decades due to anthropogenic activities, dumping of treated or untreated effluents, poor structured sewerage and drainage system, etc. In the present study, the water quality of five important rivers namely, Gola, Kosi, Ramganga, Saryu and Lohawati rivers were investigated which flow through the different districts of Kumaun region of Uttarakhand Himalaya. The water of all these rivers serves as the major source for drinking and irrigation purposes in these districts of the Kumaun region of Uttarakhand. River water samples collected in premonsoon and post-monsoon seasons of the years 2011 and 2012 were analyzed for various water quality characteristics. Statistical analyses indicate positive correlation among most of the chemical parameters. Piper diagram illustrates that all the water samples fall in Ca-Mg-HCO 3 hydrochemical facies, Moreover, the suitability of water for drinking purposes determined by water quality index indicated that river water in both the seasons is unsuitable. Irrigation water quality of all the river water was found suitable during both the seasons according to the result of sodium adsorption ratio, sodium percentage and residual sodium carbonate. The present study revealed that major factors contributing to deterioration of water quality of all the rivers might be eutrophication, tourism, anthropogenic and geogenic processes. Therefore, to restore the vitality and water quality of all these rivers, proper water resource planning programme should be developed.

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Groundwater contamination by nitrates in the city of Konya, (Turkey): A GIS perspective

Cited by 89 publications

References 11 publications

Water quality index to determine the surface water quality of Sankey tank and Mallathahalli lake, Bangalore urban district, Karnataka, India

Water quality index to determine the surface water quality of Sankey tank and Mallathahalli lake, Bangalore urban district, Karnataka, India

Spatial and temporal variations of nitrogen pollution in Wen-Rui Tang River watershed, Zhejiang, China

Water quality evaluation of Himalayan Rivers of Kumaun region, Uttarakhand, India

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