Heavy Metal Content and Element Composition of Plankton and Fish from Iskar Reservoir and Its Ecotone (original) (raw)
Related papers
Accumulation of Heavy Metals in Crayfish and Fish from Selected Czech Reservoirs
BioMed Research International, 2014
To evaluate the accumulation of aluminium, cadmium, chromium, copper, lead, mercury, nickel, and zinc in crayfish and fish organ tissues, specimens from three drinking water reservoirs (Boskovice, Landštejn, and NováŘíše) and one contaminated site (Darkovské moře) in the Czech Republic were examined. Crayfish hepatopancreas was confirmed to be the primary accumulating site for the majority of metals (Cu > Zn > Ni > Cd > Cr), while Hg and Cr were concentrated in abdominal muscle, and Al and Pb were concentrated in gill. Metals found in NováŘíše specimens included Cu > Zn > Ni and those found in Boskovice included Zn > Hg > Cr. Cd concentrations were observed only in Landštejn specimens, while contaminated Darkovské moře specimens showed the highest levels of accumulation (Cu > Al > Zn > Pb). The majority of evaluated metals were found in higher concentrations in crayfish: Cu > Al > Zn > Ni > Cr > Cd > Pb, with Hg being the only metal accumulating higher in fish. Due to accumulation similarities of Al in crayfish and fish gill, differences of Hg in muscle, and features noted for the remaining metals in examined tissues, biomonitoring should incorporate both crayfish and fish to produce more relevant water quality surveys.
Metal bioaccumulation in common carp and rudd from the Topolnitsa reservoir, Bulgaria
Archives of Industrial Hygiene and Toxicology, 2014
Concentrations of arsenic (As), cadmium (Cd), copper (Cu), nickel (Ni), lead (Pb), and zinc (Zn) were determined in water samples and five fish organs (gills, liver, kidney, spleen, and muscle) of common carp (Cyprinus carpio L.) and common rudd (Scardinius erythrophthalmus L.) from the Topolnitsa reservoir (Bulgaria) in three seasons (spring, summer, and autumn). This water ecosystem is located in a copper mining and metallurgical region. Water metal concentrations were significantly higher in the summer than in the spring (p<0.05). Moreover, As, Cd, Cu, and Zn concentrations were higher than the national limits. Qualitative factors "element" and "fish organ" had a stronger influence on metal bioaccumulation than the factors "season" and "fish species". In fish, the highest metal levels were detected in the liver, spleen, kidney and gills, and the lowest in the dorsal muscle. Tissue levels were higher in the summer, but in general they were similar between the two Cyprinid fish. Fish muscles had the lowest metal levels at all times, but As and Pb exceeded the national and international standards. Therefore, we would not recommend fish consumption from Topolnitsa, as continuous metal contamination of the reservoir may seem to present human health risk.
Bulletin of Environmental Contamination and Toxicology, 2013
The concentrations of iron, lead, cadmium, copper, manganese, mercury and arsenic were measured in water, sediment, five macrophytes (Typha angustifolia, Iris pseudacorus, Polygonum amphybium, Myriophyllum spicatum and Lemna gibba) and five fish species (Sander lucioperca, Abramis brama, Carassius gibelio, Silurus glanis and Arystichtys nobilis) in the Gruža Reservoir, used for water supply and recreational fishing. The concentrations of all examined elements were higher in sediment than in water. The values of the ratio between element concentrations in the sediment and those in the water were the highest for Fe and As. Among the five plant species, the highest concentrations of Pb and Mn were observed in T. angustifolia, while the highest concentrations of Fe, Cu and Hg were in L. gibba. I. pseudacorus and P. amphybium had the highest concentrations of Cd and As, respectively. Among the fish species, C. gibelio showed the highest tendency of element accumulation (Fe, Cd, Cu), followed by S. lucioperca (Pb, Hg), A. brama (Mn) and A. nobilis (As). The average concentrations of elements in fish muscle, except for As in A. nobilis (2.635 ± 0.241 mg kg-1 ww), were below the limits that are considered safe for human consumption in accordance with the European Commission Regulation and Official Gazette of Serbia.
Heavy metals in zooplankton from the Southern Baltic
Chemosphere, 2006
Samples of zooplankton and suspended matter were collected using a Bongo net (0.33/0.50 mm mesh net), and Nucleopore filters, respectively, from the Southern Baltic off Poland. Major classes of zooplankton, and selected heavy metals (Fe, Co, Ni, Mn, Pb, Cd, Cu, Zn, Cr) were determined in the collected samples. Concentrations of heavy metals in zooplankton were corrected for metals contributed by particulate matter adhering to zooplankton organisms. Heavy metals levels measured in nearshore samples (Bay of Gdań sk, Pomeranian Bay) were higher than those in the samples from the open sea. The only exception was cadmium exhibiting larger concentrations in the offshore as compared to the nearshore samples (0.8 vs. 1.3 lg/g d.w.). This was attributed to decreased concentrations, of both dissolved and particulate cadmium, caused by algal bloom. Larger concentrations of heavy metals in the Bay of Gdań sk in comparison with the Pomeranian Bay (e.g. Cd-1.3 vs. 0.8 lg/g, Cu-20.5 vs. 8.3 lg/g, Pb-12.9 vs. 1.2 lg/g, Cr-12.4 vs. 1.4 lg/g) were attributed to the direct discharge of the Vistula river to the Bay of Gdań sk, while the Pomeranian Bay receives the Odra river runoff indirectly, via the Szczecin Lagoon. The nonlinear estimation of the data set was used to evaluate concentrations of heavy metals in Copepoda and Cladocera. Copepoda proved to be enriched with heavy metals in comparison with Cladocera.
2012
The concentrations of 8 elements (Fe, Mn, Cu, Cr, Ni, Zn, Pb and Cd) were determined in the water and liver by common carp (Cyprinus carpio L.) from 6 waterbodies in Stara Zagora region using atomic absorption spectrometry. Despite having a reputation for being heavily polluted, the investigated waters were not heavily burdened with examined metals. Our results suggest that fish liver were accumulating elements in the same manner such are increasing metal concentrations in waterbodies. Heavy metals concentrations were highest in the water and carp liver from Zagorka Lake and Ovcharitsa Dam, and especially of the Pb did exceed established quality standards for fish. Because the liver accumulates highest levels of heavy metals, it may to be use as an important biological indicator for ecological monitoring of the fish inhabiting waterbodies.
Animals : an Open Access Journal from MDPI, 2020
Simple Summary The environmental monitoring of dangerous chemicals and how these affect the aquatic biota is of fundamental importance in defining the health status of fish. Pollution with chemical elements is of great environmental concern, since fish and marine organisms can uptake various toxicants and subsequently transfer them to man through the food web. Moreover, the accumulation of toxic elements could be a cause of pathology insurgence in fish. These organisms represent a good indicator of the status of coastal water. Flathead grey mullet (Mugil cephalus) is a coastal species, bottom dwelling and feeding on detritus, invertebrates, and algae. The main aim of the present study was to determine the total concentration of nine elements (Cd, Cr, Pb, Ni, Al, Cu, Fe, Mn, and Zn) in the fish species M. cephalus and in coastal marine waters collected from various sampling points along the Black Sea (Bulgaria) and the Ionian Sea (Italy) and to apply those results to the prediction o...
Heavy Metals Accumulation in Black Sea Ecosystems: Fish Species
2021
The purpose of the current review survey was to analyze data on the accumulation of various heavy metals in the Black Sea. Subject of study were Pb, Cd, As, Hg, Mn, Ni, Cu, Zn, Fe etc. and their content in selected commercially significant Black Sea fish species. Available data from the different Black Sea areas were presented. The extent to which established concentrations could affect human health was discussed. Health risk assessment parameters were summarized.
Heavy metal concentrations in sediment and fish species from Boka Kotorska Bay
2020
The concentrations of lead, mercury, copper and zinc were determined in sediments and muscle tissues of red mullet (<em>Mullus barbatus</em>) sampled from Boka Kotorska Bay, the Montenegrin coast. The average concentrations of the heavy metals found in sediment samples were: 31.8 ± 7.04 mg/kg for Pb, 0.388 ± 0.056 mg/kg for Hg, 57.7 ± 27.4 mg/kg for Cu and 111 ± 31.1 mg/kg for Zn, dry weight, while the average concentrations of heavy metals in red mullet samples were: 0.045 ± 0.011 mg/kg for Pb, 0.65 ± 0.14 mg/kg for Hg, 0.26 ± 0.04 mg/kg for Cu and 2.39 ± 0.21 mg/kg for Zn, wet-weight. According to sediment quality guidelines, included in the Canadian Environmental Quality Guidelines, only the concentrations of Cu and Hg exceeded the threshold effect levels (TEL). Also, considering USEPA Sediment Quality Guidelines, the sediments were classified as non-polluted (Pb) and moderately polluted (Cu and Zn). Metal concentrations in the red mullet samples in both seasons were ...
Heavy Metals Accumulation in Black Sea Ecosystems: Seawater, Sediment, Algae, Benthic Organisms
2020
The aim of the current review study was to present data on the accumulation of various heavy metals in the Black Sea ecosystems. Subject of study were Pb, Cd, As, Hg, Mn, Ni, Cu, Zn, Fe etc. and their content in seawater, sediment, algae and various benthic organisms. Available data from the Bulgarian coast and also from different Black Sea areas were presented.
Bulgarian Chemical Communications
In this study some heavy metals (Cd, Ni, Cr, As, Hg Cu, Fe, Mn, Pb and Zn) concentration in edible parts of five most consumed Bulgarian fish species-bluefish (Pomatomus saltatrix), gray mullet (Mugil cephalus), Mediterranean horse mackerel (Trachurus mediterraneus ponticus), shad (Alosa pontica) and sprat (Sprattus sprattus sulinus) collected from two stations across Bulgarian Black Sea coast were determined. The samples were digested with nitric acid followed by appropriate spectroscopic determination (Atomic Emission Spectroscopy with Inductively Coupled Plasma (AES-ICP), Flame Atomic Absorption Spectroscopy (FAAS) or Electrotermal Atomic Absorption Spectroscopy (ETAAS). The level of As in the edible part of gray mullet (Mugil cephalus) has shown a value higher than limits set from various health organizations (1.1 ± 0.1 mg/kg). On the contrary this fish species accumulates the other investigated heavy metals such as Hg, Zn, Fe and Pb to lower extend. The concentration of Zn and ...