1,721,045 research outputs found
Drinking water quality assessment of Ergene River basin (turkey) by water quality index: essential and toxic elements
No full textErgene River Basin is the most significant aquatic habitat for Thrace Region and also one of the most polluted watersheds in Turkey. The objectives of this study were to determine some essential-toxic element accumulations in drinking water of settlement areas located in Ergene River Basin and evaluated the water quality in terms of local public health. Drinking water samples were collected from 30 stations in dry (summer) season of 2018. Cluster Analysis (CA) was used to classify the investigated elements and villages and Weighted Arithmetic Water Quality Index (WAWQI) was used to assess the water quality. According to results of elemental CA, 11 statistically significant clusters were formed in terms of elemental densities and according to results of locational CA, 3 statistically significant clusters were formed in terms of drinking water qualities. According to results of WAWQI, the risk sequence of the elements in drinking water of the system as follows: Se > As > Mo > B > Ba > Cr > Pb > Mn > Ni > Cd > Cu. Although Ergene River Basin is known as a very contaminated freshwater ecosystem, it was determined that the groundwater of the basin has I. - II class water quality, in general. Selenium accumulations detected in almost all the investigated villages exceeded the drinking water limit of 10 ppb. Arsenic, boron and molybdenum accumulations detected in some villages exceeded the drinking water standards. Although concentrations of some elements in some locations were exceed the limit values and recorded as quite high levels, the majority of investigated element concentrations in drinking water of the basin have been found to be in the range of human consumption standards
Drinking Water Quality of a Rice Land in Turkey by Statistical and GIS Perspectives
No full textThis study was carried out to determine the drinking water quality of ipsala District, known as Rice Land in Turkey. Water samples were collected from 23 stations, including all the residential areas in winter 2013. Some physical, chemical, and microbiological water quality parameters (temperature, dissolved oxygen, pH, conductivity, turbidity, nitrite, nitrate, ammonium, sulfate, phosphate, chloride, fluoride, and biological oxygen demand) were determined and some multi-statistical methods were applied to detected data. The geographic information system was also used in order to make a visual explanation by presenting distribution maps of investigated parameters, and groundwater samples were assessed according to national and international quality criteria. According to data observed, although the investigated parameter levels in ground water of ipsala District did not exceed the limit values for drinking, the region has class II-III (Turkish Regulations) groundwater quality in terms of nitrite and nitrate parameters in general.Trakya University, Turkey; Trakya University, Commission of Scientific Research Projects [2013/73]The author would like to thank for Trakya University, Turkey financial and technical supports. This investigation was supported by project No. 2013/73 accepted by Trakya University, Commission of Scientific Research Projects. Also, the author would like to thank Environmental Engineer Alper Ugurluoglu for his contributions to this manuscript
GROUNDWATER QUALITY MONITORING OF A SIGNIFICANT HABITAT IN TRAKYA UNIVERSITY: BALKAN ARBORETUM AREA (EDIRNE, TURKEY)
No full textBalkan Arboretum Area is located in the northeast part of the Balkan Campus of Trakya University in Edirne Province of Turkey. The aim of this study was to determine the groundwater quality of Balkan Arboretum Area by monthly monitoring some water quality parameters including total dissolved solids (TDS), salinity, electrical conductivity (EC), pH, turbidity, sulphate (SO4), nitrite (NO2), nitrate (NO3) and phosphate (PO4). Groundwater samples were collected monthly from Gullapoglu Well between the dates of January 2016 - December 2016. The collected data were evaluated according to the criteria of Water Pollution Control Regulation in Turkey and evaluated as drinking water according to the criteria of Turkish Standards Institute, European Communities and World Health Organization. According to data observed, nitrate and phosphate concentrations detected in groundwater resources of Balkan Arboretum Area were high levels and may pose a significant risk factor in the future for the ecosystem and human health.Trakya University, TurkeyThe author would like to thank for the financial support supplied by Trakya University, Turkey
DRINKING WATER QUALITY ASSESSMENT IN VILLAGES LOCATED IN MERIC RIVER BASIN (EDIRNE, TURKEY)
No full textThis study was carried out to determine the drinking water quality of Ipsala, Kesan, Uzunkopru and Meric Districts, which are located in the Meric River Basin in Edirne Province of Turkey. Water samples were collected from 51 villages in autumn season of 2017. Some physical and chemical water quality parameters including dissolved oxygen, oxygen saturation, pH, electrical conductivity (EC), total dissolved solids (TDS), salinity, turbidity, nitrite (NO2), nitrate (NO3), phosphate (PO4) and cyanide (CN) were determined and the results were assessed according to national and international quality criteria. Pearson Correlation Index (PCI) and Principle Component Analysis (PCA) were applied to experimental data in order to determine the significant relations among the investigated parameters and effective factors on groundwater quality of the region. Geographic Information System (GIS) was also used in order to make a visual explanation by presenting distribution maps of investigated parameters. According to data observed, although the investigated parameter levels in drinking water of villages did not exceeded the limit values for drinking, the region has Class I - II water quality in terms of cyanide, nitrite and nitrate parameters; Class II - III in terms of electrical conductivity parameter; and Class III - IV in terms of phosphate parameter in general.Trakya University, Turkey; [2016/247]The author would like to thank for the financial and technical supports supplied by Trakya University, Turkey. This investigation has been supported by the project numbered as 2016/247 accepted by Trakya University, Commission of Scientific Research Projects
WATER AND SEDIMENT QUALITY ASSESSMENT OF THE LIFEBLOOD OF THRACE REGION (TURKEY): MERIC RIVER BASIN
No full textMeric River, which is the longest river in Balkans, is one of the most important aquatic ecosystems in Thrace Region of Turkey. But as many aquatic ecosystems, Meric River Basin is known to be exposed to an intensive organic and inorganic pollution by means of agricultural and industrial pressure on the system. The aim of this study was to determine the water and sediment quality of Meric River Basin by using some statistical techniques. For this purpose, water and sediment samples were collected in spring (rainy) season of 2017 from 24 stations selected on the basin. Total of 19 water quality parameters (temperature, dissolved oxygen, % oxygen saturation, pH, EC, TDS, salinity, turbidity, nitrate, nitrite, ammonium, phosphate, sulphate, floride, chloride, ORP, COD, BOD and fecal coliform) were investigated in water samples and also total of 9 inorganic pollution parameters (Cd, Pb, As, B, Cu, Zn, Cr, Ni and Se) were investigated in water and sediment samples. Cluster Analysis (CA) and Factor Analysis (FA) were applied to the results in order to evaluate the detected data effectively. According to detected data, pollution levels of the investigated rivers and lakes as follows; Ergene River > Meric River > Tunca River > Lakes of Meric Delta in general. It was also determined that organic contamination levels in water and toxic element levels in sediment of the Meric River Basin have reached to critical levels and the system is under effect of agricultural and industrial pressure.Trakya University, Turkey; Trakya University, Commission of Scientific Research Projects [2016/247]The author would like to thank for the financial and technical supports supplied by Trakya University, Turkey. This investigation has been supported by the project numbered as 2016/247 accepted by Trakya University, Commission of Scientific Research Projects
Drinking Water Quality Assessment of Ergene River Basin (Turkey) by Water Quality Index: Essential and Toxic Elements
No full textErgene River Basin is the most significant aquatic habitat for Thrace Region and also one of the most polluted watersheds in Turkey. The objectives of this study were to determine some essential-toxic element accumulations in drinking water of settlement areas located in Ergene River Basin and evaluated the water quality in terms of local public health. Drinking water samples were collected from 30 stations in dry (summer) season of 2018. Cluster Analysis (CA) was used to classify the investigated elements and villages and Weighted Arithmetic Water Quality Index (WAWQI) was used to assess the water quality. According to results of elemental CA, 11 statistically significant clusters were formed in terms of elemental densities and according to results of locational CA, 3 statistically significant clusters were formed in terms of drinking water qualities. According to results of WAWQI, the risk sequence of the elements in drinking water of the system as follows: Se > As > Mo > B > Ba > Cr > Pb > Mn > Ni > Cd > Cu. Although Ergene River Basin is known as a very contaminated freshwater ecosystem, it was determined that the groundwater of the basin has I. - II class water quality, in general. Selenium accumulations detected in almost all the investigated villages exceeded the drinking water limit of 10 ppb. Arsenic, boron and molybdenum accumulations detected in some villages exceeded the drinking water standards. Although concentrations of some elements in some locations were exceed the limit values and recorded as quite high levels, the majority of investigated element concentrations in drinking water of the basin have been found to be in the range of human consumption standards.Trakya University, Turkey; Trakya University, Commission of Scientific Research Projects [2017/211]The author would like to thank for the financial and technical supports supplied by Trakya University, Turkey. This investigation has been supported by the project numbered as 2017/211 accepted by Trakya University, Commission of Scientific Research Projects
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
FLUORINE ACCUMULATIONS IN DRINKING WATER OF HAVSA DISTRICT (EDIRNE, TURKEY) AND ASSESSMENT OF WATER QUALITY IN TERMS OF TEETH HEALTH
No full textThis study was carried out to determine the fluorine accumulations in groundwater of Havsa District, where is located in the Edirne Province of Turkey in Thrace Region. Drinking water samples were collected from 15 stations including almost all the residential areas of the Havsa District in winter season of 2016. Fluorine concentrations of water samples were determined by using a spectrophotometer and Cluster Analysis (CA) was applied to detected data in order to classify the groundwater of investigated residential areas according to fluorine contents. Geographic Information System (GIS) was also used in order to make a visual explanation by presenting distribution map of fluorine contents and detected data were evaluated according to national and international quality criteria. And also the detected data were evaluated in terms of teeth health of local people, who constantly drinks this water. According to data observed, the fluorine concentrations in the Havsa District were determined between 0.006 ppm (Bakislar Village) - 0.567 ppm (Haskoy Village). According to the results of CA, 2 statistically significant clusters were formed as Updistrict Cluster with higher fluorine contents and Downdistrict Cluster with lower fluorine contents.Trakya University, Turkey; [2016/247]The author would like to thank for the financial and technical supports supplied by Trakya University, Turkey. This investigation has been supported by the project numbered as 2016/247 accepted by Trakya University, Commission of Scientific Research Projects. Also the authors would like to thank Environmental Engineer Alper Ugurluoglu for his contributions on this manuscript
Bioecological and statistical risk assessment of toxic metals in sediments of a worldwide important wetland: Gala Lake National Park (Turkey)
No full textGala Lake National Park that has an international importance is one of the most important wetland ecosystems for Turkey. As same as many aquatic habitats, Gala Lake is under a significant anthropogenic pressure originated from agricultural activities conducted around the lake and from industrial discharges by means of Ergene River
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