Sürdürülebilir Kalkınma Amaçları
Yazarlar
- Demir, Veysel(3)
- Adiguzel, Ragip(2)
- Yildirim, Numan(2)
- Aksu, Onder(1)
- Arslan, Zikri(1)
- Ates, Mehmet(1)
- Ates, Mustafa(1)
- Bayhan, Hurrem(1)
- Can, Safak Seyhaneyildiz(1)
- Danabas, Durali(1)
- Demir, Goksel(1)
- Ergin, Sezai(1)
- Erguven, G. Onder(1)
- Ikizoglu, Bahar(1)
- Kanat, Gurdal(1)
- Kaplan, Olcay(1)
- Seker, Sebahat(1)
- Tayhan, Nilgun(1)
- Yildirim, Nuran Cikcikoglu(1)
Yayınlar
- MakaleAçık Erişim2016Scopus SJRQ3Monitoring Aclonifen Remediation in Soil with a Laboratory-Scale Research
Erguven, G. Onder; Bayhan, Hurrem; Demir, Goksel; Ikizoglu, Bahar; Kanat, Gurdal
Aclonifen was used as the most preferable type of herbicide which is used in sunflower farming in the Thrace Region. Bacteria and fungi were isolated from the soil samples taken from the Thrace Region, and a mixed culture was prepared from equal volumes (10(8) CFU/mL) of liquid cultures of microorganisms. Including the witness sample, five different setups were prepared, to which Aclonifen, with a concentration of 1900 mu g/L, was added. Each unit was diluted with distilled water for six weeks. The water filtered at this stage was measured for chemical oxygen demand (COD), biochemical oxygen demand, total organic carbon (TOC), and Aclonifen. Additionally, pH and dissolved oxygen measurement was performed. According to the results of the study, the highest bioremediation was observed in the soil sample to which 10 mL of mixed culture of microorganisms was added and Aclonifen, COD, BOD5, and TOC remediation was observed as 93.2%, 97.8%, 98.8%, and 98.7%, respectively.
AtıfWoS11OpenAlex16
İncele - MakaleYayıncıda açık erişim2014Scopus SJRQ3Temporal Changes in Concentrations of Some Trace Elements in Muscle Tissue of Crayfish, Astacus leptodactylus (Eschscholtz, 1823), from Keban Dam Lake
Aksu, Onder; Adiguzel, Ragip; Demir, Veysel; Yildirim, Numan; Danabas, Durali; Seker, Sebahat; Can, Safak Seyhaneyildiz; Ates, Mustafa
Crayfish (Astacus leptodactylus Eschscholtz, 1823) is the native crayfish species in Turkey. It was exported regularly to Western Europe. In this study, bioaccumulation and temporal trends of some trace elements (arsenic: As, cadmium: Cd, copper: Cu, mercury: Hg, lead: Pb, and zinc: Zn) in edible abdomenmuscle of crayfish from Keban Dam Lake (Elazig, Turkey) were investigated for the 2006-2012 period. Sequence of metal concentration levels was Zn > Cu > Hg > Pb > Cd > As in muscle tissues. The highest concentration of Zn (21.69mg kg(-1)) was detected in 2006, while the lowest (4.35mg kg(-1)) in 2009. In general, it was found that the concentrations of trace elements investigated were lower than the maximum permissible limits of the food regulations of the Ministry of Food, Agriculture, and Livestock (MFAL), the Turkish Food Codex and Commission Regulation (EC). If the crayfish selected for the study are recognized as bioindicators of environmental pollution, then it is possible to conclude that the changes in studied trace elements concentrations in the Keban Dam Lake are being steady.
AtıfWoS5OpenAlex8İncele - MakaleAçık Erişim2013Scopus SJRQ4Occurrence and Assessment of Chemical Contaminants in Drinking Water in Tunceli, Turkey
Demir, Veysel; Ergin, Sezai
The objective of this study was to analyze drinking water samples from 21 sites in the city center and seven municipalities of Tunceli, Turkey, in order to determine the presence of nitrate, nitrite, fluoride, bromate, pesticides, polycyclic aromatic hydrocarbons (PAHs), trihalomethanes (THMs), and some other chemicals. In all locations, the concentrations of chemicals investigated were below the permissible limits set by local and international organizations for drinking water. Low levels of nitrate (4.79 +/- 4.20 mg/L), fluoride (0.11 +/- 0.08 mg/L), and THMs (6.63 +/- 5.14 mu g/L) were detected in all locations. A low level of tetra, chloroethane, which is suspected to be a human carcinogen, was also detected in 8 locations in the range of 0.26-0.43 mu g/L. These contaminants may pose adverse health effects or minimum hazard due to long-term exposure. In all locations, bromate, benzene, total PAH, 1-2 dichloroethane, vinyl chloride, acrylamide, and epichloridine levels in drinking water samples were under detection limits.
AtıfWoS9OpenAlex11İncele - MakaleAçık Erişim2013Scopus SJRQ2Bioaccumulation, Subacute Toxicity, and Tissue Distribution of Engineered Titanium Dioxide Nanoparticles in Goldfish (Carassius auratus)
Ates, Mehmet; Demir, Veysel; Adiguzel, Ragip; Arslan, Zikri
The increased use of nanosized materials is likely to result in the release of these particles into the environment. It is, however, unclear if these materials are harmful to aquatic animals. In this study, the sublethal effects of exposure of low and high concentrations of titanium dioxide nanoparticles (TiO2 NPs) on goldfish (Carassius auratus) were investigated. Accumulation of TiO2 NPs increased from 42.71 to 110.68 ppb in the intestine and from 4.10 to 9.86 ppb in the gills of the goldfish with increasing exposure dose from 10 to 100mg/L TiO2 NPs. No significant accumulation in the muscle and brain of the fish was detected. Malondialdehyde as a biomarker of lipid oxidation was detected in the liver of the goldfish. Moreover, TiO2 NPs exposure inhibited growth of the goldfish. Although there was an increase (8.1%) in the body weights of the goldfish for the control group, in the low and high exposure groups 1.8% increase and 19.7% decrease were measured, respectively. The results of this study contribute to the current understanding of the potential ecotoxicological effects of nanoparticles and highlight the importance of characterization of NPs in understanding their behavior, uptake, and effects in aquatic systems and in fish.
AtıfWoS53OpenAlex80İncele - MakaleAçık Erişim2011Assessment of Some Heavy Metals in Drinking Water Samples of Tunceli, Turkey
Kaplan, Olcay; Yildirim, Nuran Cikcikoglu; Yildirim, Numan; Tayhan, Nilgun
The drinking water quality is associated with the conditions of the water supply networks, the pollution and the contamination of groundwater with pollutants of both anthropogenic and natural origin. In this study, water samples were taken from four different waterworks in Tunceli, Turkey and heavy metals concentrations (As, Cu, Cd, Cr, Pb, Ni and Hg) were measured. Four sampling sites were pre-defined in different locations of the city. The obtained results showed that, the heavy metals concentrations in water samples did not exceed the values of WHO (World Health Organization), EC (Europe Community), EPA (Environment Protection Agency) and TSE-266 (Turkish Standard) guidelines.
AtıfWoS16OpenAlex28İncele - DergiE-JOURNAL OF CHEMISTRY
- DergiJOURNAL OF NANOMATERIALS
- DergiBIOINORGANIC CHEMISTRY AND APPLICATIONS
- DergiJOURNAL OF CHEMISTRY