Investigation of discharge and groundwater contamination characteristics around the Karasu Spring, Muş Area, Turkey

Çetindağ, Bahattin

doi:10.1007/s00254-004-1152-7

Cited by 3 publications

(1 citation statement)

References 3 publications

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“…Considering the large share of arable land in the River Drava basin, the highest possible nitrate pollution of water in this region can be expected. Due to the increasing trend of application of mineral and organic fertilizers in the world (Woo-Jung et al 2007;Pacheco et al 2001;Bouwman et al 2005;Cetindag 2005;Widory et al 2003) and, on the other hand, due to stricter criteria concerning reduction in nitrate pollutions in water (EU Nitrate Council Directive 1991), the aim of this research was to investigate the annual nitrate concentration variability in the area of an intensive agriculture and dense population of the middle Podravina region. The areas especially prone to pollution are easily permeable soils in drinking water protection zones in shallow unconfined aquifers (Burkart and Stoner 2007;Kraft and Stites 2003).…”

Section: Introductionmentioning

confidence: 99%

Point source pollution and variability of nitrate concentrations in water from shallow aquifers

Nemčić-Jurec¹,

Jazbec

2016

Appl Water Sci

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Agriculture is one of the several major sources of nitrate pollution, and therefore the EU Nitrate Directive, designed to decrease pollution, has been implemented. Point sources like septic systems and broken sewage systems also contribute to water pollution. Pollution of groundwater by nitrate from 19 shallow wells was studied in a typical agricultural region, middle Podravina, in northwest Croatia. The concentration of nitrate ranged from \0.1 to 367 mg/l in water from wells, and 29.8 % of 253 total samples were above maximum acceptable value of 50 mg/l (MAV). Among regions R1-R6, there was no statistically significant difference in nitrate concentrations (F = 1.98; p = 0.15) during the years 2002-2007. Average concentrations of nitrate in all 19 wells for all the analyzed years were between recommended limit value of 25 mg/l (RLV) and MAV except in 2002 (concentration was under RLV). The results of the repeated measures ANOVA showed statistically significant differences between the wells at the point source distance (proximity) of \10 m, compared to the wells at the point source distance of [20 m (F = 10.6; p \ 0.001). Average annual concentrations of nitrate during the years studied are not statistically different, but interaction between proximity and years is statistically significant (F = 2.07; p = 0.04). Results of k-means clustering confirmed division into four clusters according to the pollution. Principal component analysis showed that there is only one significant factor, proximity, which explains 91.6 % of the total variability of nitrate. Differences in water quality were found as a result of different environmental factors. These results will contribute to the implementation of the Nitrate Directive in Croatia and the EU.

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Section: Introductionmentioning

confidence: 99%

Point source pollution and variability of nitrate concentrations in water from shallow aquifers

Nemčić-Jurec¹,

Jazbec

2016

Appl Water Sci

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Monitoring of nitrates in drinking water from agricultural and residential areas of Podravina and Prigorje (Croatia)

Nemčić-Jurec¹,

Konjačić

Jazbec

2013

Environ Monit Assess

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Nitrates are the most common chemical pollutant of groundwater in agricultural and suburban areas. Croatia must comply with the Nitrate Directive (91/676/EEC) whose aim is to reduce water pollution by nitrates originating from agriculture and to prevent further pollution. Podravina and Prigorje are the areas with a relatively high degree of agricultural activity. Therefore, the aim of this study was, by monitoring nitrates, to determine the distribution of nitrates in two different areas, Podravina and Prigorje (Croatia), to determine sources of contamination as well as annual and seasonal trends. The nitrate concentrations were measured in 30 wells (N = 382 samples) in Prigorje and in 19 wells (N = 174 samples) in Podravina from 2002 to 2007. In Podravina, the nitrate content was 24.9 mg/l and 6% of the samples were above the maximum available value (MAV), and in Prigorje the content was 53.9 mg/l and 38% of the samples above MAV. The wells were classified as correct, occasionally incorrect and incorrect. In the group of occasionally incorrect and incorrect wells, the point sources were within 10 m of the well. There is no statistically significant difference over the years or seasons within the year, but the interaction between locations and years was significant. Nitrate concentrations' trend was not significant during the monitoring. These results are a prerequisite for the adjustment of Croatian standards to those of the EU and will contribute to the implementation of the Nitrate Directive and the Directives on Environmental Protection in Croatia and the EU.

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Nitrates in Turkish waters: sources, mechanisms, impacts, and mitigation

Erşahin,

Bilgili

2023

Environ Sci Pollut Res

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Intensive technological developments, rapid population growth, unplanned urbanization, and excessive use of nitrogen fertilizers have caused water resources to be contaminated substantially by nitrates in Turkey as well as across the world as evidenced by the accumulated scienti c information. The information should be evaluated to draw a nationwide attention to the problem. The aim of this review article was to highlight the importance of nitrate (NO 3 ) contamination and to discuss the measures to be taken to mitigate nitrate contamination across the nation. Signi cant number of the peer-reviewed scienti c articles were examined to identify anthropogenic sources, spatial and temporal variability, and contamination mechanisms of the nitrate contamination of the water resources across Turkey. Agriculture, especially chemical fertilizers used in irrigated agriculture, was the most important source of nitrates in groundwater. Also, the industrial and domestic discharges from highly populated and industrialized regions were signi cant sources of nitrates in the water resources. The most severe and widespread nitrate contamination occurred in the regions where intensive agriculture, industrial development, and rapid urbanization coincided. Drinking waters have been exposed to a signi cant nitrate contamination in many regions across the nation, raising a serious health concern to the people. A well-developed action plan is urgent for mitigating nitrate contamination in Turkish waters to avoid further degradation of those valuable resources.

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Investigation of discharge and groundwater contamination characteristics around the Karasu Spring, Muş Area, Turkey

Cited by 3 publications

References 3 publications

Point source pollution and variability of nitrate concentrations in water from shallow aquifers

Point source pollution and variability of nitrate concentrations in water from shallow aquifers

Monitoring of nitrates in drinking water from agricultural and residential areas of Podravina and Prigorje (Croatia)

Nitrates in Turkish waters: sources, mechanisms, impacts, and mitigation

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