Metal concentrations in water, sediment and three fish species from the Danube River, Serbia: a cause for environmental concern

Abstract

The aim of this study was to investigate the presence of metal contamination in water, sediments and three different fish species. All samples were taken from the Danube River in Belgrade Region, a location upstream from Grocka. Concentrations of Cd, Hg and Pb in water samples were not detected, while concentrations of Zn, Fe, Cu and As were in the range of 0.004-0.41 mg L(-1). Iron was the most deposited metal in sediment samples (17,530.00 mg kg(-1)). For the purpose of heavy metal determination in fish tissue, silver carp, common carp and wels catfish were collected. Concentrations of Pb, Cd and As were determined in muscle, digestive tract and liver by inductively coupled plasma-optical emission spectrophotometry (IPC-OES). The highest concentration of Pb was in the digestive tract of all three fish species, while Cd was mostly deposited in the liver. The highest concentration of Hg was in the muscle tissue of wels catfish, and these values are above the maximum residual levels prescribed by the European Union and the maximum allowed concentrations (MACs) for Serbia. Concentration of As was mostly deposited in the liver, but under the MAC.

A Short-Term Study on Heavy Metal Concentrations in Gill, Kidney, Liver, Muscle and Skin Tissues of <i>Silurus glanis</i> L., 1758 from Çamlıgöze Dam Lake, Sivas, Turkey

“…On the contrary, the mean Cd values in muscle of S. glanis obtained in the study were higher than those obtained by Jovicic et al [13] in the same species from Danube River, Serbia. The mean Cd values in liver and muscle of S. glanis obtained in the study were higher than those obtained by Ivanovic et al [14] in the same species from Danube River, Serbia. The mean Cd values in liver and muscle of S. glanis obtained in the study were higher than those obtained by Milanov et al [15] in the same species from Danube River, Serbia.…”

Determination of the Level of Selected Elements in Canned Meat and Fish and Risk Assessment for Consumer Health

“…Lead damages and destroys erythrocytes; reduces resistance; weakens the bones; blocks the nervous system; inhibits the absorption of iodine, necessary for correct functioning of the thyroid gland; forms toxic deposits in the organism, causing numerous disorders and diseases, [41]; 0.053-0.7396, 0.0195-0.0489 [18]; 0.07-0.22 [72]; <LOQ-1.14 [17]; 0.0001-0.0003 [52]; 0.0378-0.5243 [73]; 0.60-0.62 [74]; 0.088-0.410, [43]; 0.005-1.17 [39], * 0.140-0.327 in d.w. [75], * 0.094-0.466 [76], * 0.16-0.53 [77] 0.50 and 1.0 (tuna) [26] As Cd 0.0033-0.0754 0.0046-0.0720 [16]; 0.002-0.07 [78]; 1.00-1.80 [66]; 0.08-0.66 [41]; 0.0-53.9 [18]; 0.019 [79]; <LOQ-0.09 [17]; 0.08 [36]; 0.0032-0.0834 [73]; 0.020-0.025 [74]; <LOQ-0.007 [39]; 0.03-0.12 [37]; <LOQ-0.18 [40]; 0.19-17.05 [80], * 0.008-0.191 in d.w. [75], * 0.021-0.082 [76], * 0.01-0.21 [77] 0.050 and 0.10 (sardine, tuna) [26] Pb 0.011-0.296 0.0126-0.0726 [16]; 0.007-0.51 [78]; 3-4.60, 3.60-4.00 [66]; 0.14-0.92 [41]; 0.02-1.37 [35]; 0.0-31.1 [18]; 0.11 [79]; <LOQ-4.13 [17]; 0.10 [36]; <LOQ-3.19, 0.35-2.10, 0.25-1.51 in d.w. [42]…”

Assessment of trace metals contamination in Diplodus annularis (Linnaeus, 1758) from the south coast of Sfax, Tunisia

“…Non-essential metals such as Cd, Hg, Ni and Pb have no biological function and are toxic even at low concentrations (Ivanović et al 2016). Our results showed that trace metal bioaccumulation varied significantly among tissues.…”