Radionuclides (210Po and210Pb) and Some Heavy Metals in Fish and Sediments in Lake Bafa, Turkey, and the Contribution of210Po to the Radiation Dose.
The pollution level of Lake Bafa was investigated by collecting fish samples {Dicentrarchus labrax(sea bass),Liza ramada(mullet) andAnguilla anguilla(eel)}, surface sediment, and core samples. In all these samples,210Po and210Pb concentrations were estimated, and total annual dose rates were obtained for each species. Some heavy metal (Cr, Ni, Pb, Cd, Mn, Fe, and Zn) concentration levels were obtained for the fish and a core sample. The sediment mass accumulation rate was found to be 3.27 g·m-2·day-1(0.119 g·cm-2·y-1) from a core sample. The heavy metal concentrations in the vertical profile of samples from the core were also observed. The measured concentration of Zn, Pb, Cd, and Cr were between the ERL (effects range low) and ERM (effects range median) limits, while Ni concentrations were higher than the ERM limit. The observed concentrations of Cd, Pb, and Zn in fish samples did not exceed the limits in accordance with Turkish Food Regulations. Further, the maximum effective dose equivalent of210Po in the area was found to be 1.169 µSv·y-1.
Institute of Nuclear Sciences, Ege University, Izmir 35100, Turkey. ramazanmanav@gmail.com.
Ramazan
R
Manav
Institute of Nuclear Sciences, Ege University, Izmir 35100, Turkey. aysun.ugur@ege.edu.tr.
Aysun
A
Uğur Görgün
Institute of Nuclear Sciences, Ege University, Izmir 35100, Turkey. ifilizok@gmail.com.
Işık
I
Filizok
D000811:Anguilla / Q000378:metabolism; D000818:Animals; D001492:Bass / Q000378:metabolism; D004781:Environmental Exposure; D004784:Environmental Monitoring; D019015:Geologic Sediments / Q000032:analysis*; D060106:Lakes / Q000032:analysis; D007856:Lead Radioisotopes / Q000032:analysis* / Q000378:metabolism; D019216:Metals, Heavy / Q000032:analysis* / Q000378:metabolism; D011059:Polonium / Q000032:analysis* / Q000378:metabolism; D011829:Radiation Dosage; D000069079:Radiation Exposure; D023701:Smegmamorpha / Q000378:metabolism; D014421:Turkey; D014874:Water Pollutants, Chemical / Q000032:analysis* / Q000378:metabolism; D014875:Water Pollutants, Radioactive / Q000032:analysis* / Q000378:metabolism
D007856:Lead Radioisotopes; D019216:Metals, Heavy; D014874:Water Pollutants, Chemical; D014875:Water Pollutants, Radioactive; D011059:Polonium
210Pb; 210Po; Lake Bafa; fish; heavy metals; sediment