scholarly journals Concentration of some metals in the muscles of fish from selected lakes of Warmia and Mazury region (Poland)

2013 ◽  
Vol 82 (1) ◽  
pp. 67-71 ◽  
Author(s):  
Anna Spodniewska ◽  
Dariusz Barski
Keyword(s):  
Heavy Metals ◽  
Muscle Tissue ◽  
Absorption Spectrometry ◽  
Limited Information ◽  
The European Union ◽  
Fish Muscles ◽  
Tolerable Weekly Intake ◽  
North Eastern ◽  
The Mean ◽  
Mean Concentration

In view of very scarce and limited information concerning the content of heavy metals in tissues of fish from the lakes in north-eastern Poland, the aim of the study was to determine the content of some heavy metals in the muscle tissue of two fish species: bream (Abramis brama) (n = 60) and pikeperch (Sander lucioperca) (n = 60) caught in selected lakes of Warmia and Mazury region (Poland) in 2010 as well as to asses human health safety. The concentration of lead (Pb), mercury (Hg), copper (Cu), iron (Fe) and zinc (Zn) in the muscle tissue of bream and pikeperch was determined by atomic absorption spectrometry. The mean concentration of toxic metals (Pb and Hg) in muscles of bream was 0.07 mg/kg and 0.03 mg/kg, respectively, and 0.10 mg/kg and 0.13 mg/kg in muscles of pikeperch, respectively. The mean concentration of Cu, Fe and Zn found in the muscles of bream was 0.33 mg/kg, 7.27 mg/kg and 6.12 mg/kg in muscles of pikeperch it was 0.21 mg/kg, 5.56 mg/kg and 6.02 mg/kg, respectively. It was found that the content of the analysed metals in fish muscles was low and did not exceed the values of limits admissible in the European Union. At the assumed mean and maximum concentration of Pb and Hg, the values of PTWI (provisional tolerable weekly intake) were not exceeded (i.e. 0.56% PTWI for Pb and 3.01% PTWI for Hg), therefore the consumption of fish originating from selected lakes of Warmia and Mazury does not constitute a threat to consumer health.

scholarly journals Heavy metal and Al bioaccumulation in the anemone Actinia equina Linnaeus, 1758 (Cnidaria: Actiniidae) from İskenderun Bay, North-Eastern Mediterranean, Turkey

2021 ◽  
Vol 38 (2) ◽  
pp. 161-166
Author(s):  
Önder Duysak ◽  
Yavuz Mazlum ◽  
Erkan Uğurlu
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Muscle Tissue ◽  
Eastern Mediterranean ◽  
Heavy Metal Concentrations ◽  
Average Value ◽  
Muscle Tissues ◽  
North Eastern ◽  
Iskenderun Bay ◽  
The Mean

The purpose of this study was to determine the accumulation levels of ten metals (Fe, Zn, Cd, Cu, Co, Ni, Al, Mn, Pb, and Cr) in the muscle tissues of Actina equina indvduals. A total of 120 individuals of A. equina were collected at six different stations in İskenderun Bay in spring 2013. The accumulation levels of heavy metals in the tissues were found to vary significantly among stations. The mean concentrations of Fe were the highest at Samandağ station (105.11 ± 74.28 mg/kg) whereas the lowest average value of Co (0.84 ± 0.10 mg/kg) was obtained at Dörtyol station. Heavy metal concentratıons in muscle tissue of A. equina were ordered as Fe>Zn>Mn>Al>Cr>Cu>Pb>Ni>Cd>Co, respectively. This study is the first detailed bioaccumulation study conducted with A. equina in İskenderun Bay.

scholarly journals Determination of heavy metals concentration in drinking water of Potiskum Metropolitan, North Eastern, Nigeria

2020 ◽  
Vol 7 (2) ◽  
pp. 31-39
Author(s):  
Muhammad Dahiru Audu ◽  
Madu Mamman Maianguwa ◽  
Ibrahim Gana Geidam
Keyword(s):  
Heavy Metals ◽  
Drinking Water ◽  
Value Set ◽  
Limit Value ◽  
North Eastern ◽  
Sampling Points ◽  
Standard Organization ◽  
The Mean ◽  
Mean Concentration

The mean concentrations of heavy metals (HMs) such as Lead (Pb), Cadmium (Cd), Zinc (Zn), and Iron (Fe) in drinking water of Potiskum metropolitan were investigated. The water samples were collected from the following locations; ARK, PMP, MMD, ABB, NHT, FCE, and JGW. The sample's physic-chemical parameters such as pH, Temperature, and Conductivity were analyzed using Atomic Absorption Spectrometer (AAS). The pH result for the three sample locations ABB (9.6), PMP (9.2), and JGW (8.8) was recorded and found to be above the recommended value set by Standard Organization of Nigerian (SON). Meanwhile, there Conductivities values were reported to be below the limit value (1ms/cm) set by SON. The results obtained the highest mean concentration of cadmium was recorded in FCE (0.004±0.01 ppm) and observed above the recommended value set by WHO(0.003ppm), the highest mean concentration of lead was found in FCE (0.090±0.012 ppm) and all mean concentrations of lead were recorded above the recommended values set by WHO(0.01ppm) and SON(0.01ppm), the highest concentration of zinc was recorded in JGW (0.024±0.026 ppm) and all sampling points have recorded the concentrations of zinc below the recommended value set by WHO(5.0ppm) and SON(3.0ppm). The highest mean concentration of iron was recorded in ARK (0.310±0.063 ppm) and all sampling points have recorded the concentrations of iron below the recommended value set by SON (0.3ppm) except ARK (recorded above).

Evaluation of heavy metals content in the canned/packed fruit juices from local and imported origin in Lahore, Pakistan

2021 ◽  
Author(s):  
Nazeefa Fatima ◽  
Munazza Khan ◽  
Muhammad Shuaib Kabeer
Keyword(s):  
Heavy Metals ◽  
Atomic Absorption ◽  
Fruit Juices ◽  
Human Consumption ◽  
Acid Digestion ◽  
Digestion Method ◽  
Mean Values ◽  
Nutritive Values ◽  
The Mean ◽  
Mean Concentration

This study was conducted to determine the mean concentration of heavy metals such as lead (Pb), copper (Cu), zinc (Zn), chromium (Cr), manganese (Mn), nickel (Ni), selenium (Se), magnesium (Mg), and iron (Fe) in canned/packed fruits juices, collected from various stores in Lahore in a period of three months. These juices were categorized into four groups; local packed and canned and also imported packed and canned products. Every group consisted of ten samples. By using the di-acid digestion method, the collected samples were digested and analyzed under Atomic Absorption Spectrophotometer (AAS). The results indicated that the mean values of 7 out of 9 tested heavy metals including Pb, Mg, Ni, Fe, Cr, Se and Mn were above permissible limits (set by WHO) in all four understudy groups. Therefore, it was concluded that commercially available fruit juices are not all safe according to their heavy metals content for the human consumption despite their nutritive values.

scholarly journals Heavy Metals in Water and Sediment: A Case Study of Tembi River

2014 ◽  
Vol 2014 ◽  
pp. 1-5 ◽  
Author(s):  
Saeed Shanbehzadeh ◽  
Marzieh Vahid Dastjerdi ◽  
Akbar Hassanzadeh ◽  
Toba Kiyanizadeh
Keyword(s):  
Heavy Metals ◽  
Drinking Water ◽  
Average Concentration ◽  
Agricultural Water ◽  
Water And Sediment ◽  
The Mean ◽  
Mean Concentration ◽  
Cu And Zn ◽  
Standard Range

This study was carried out to examine heavy metals concentration in water and sediment of upstream and downstream of the entry of the sewage to the Tembi River, Iran. Samples were collected from upstream and downstream and were analyzed for Cd, Cr, Cu, Fe, Pb, Ni, and Zn by atomic absorption spectrophotometer. The results indicated that the average concentration of the metals in water and sediment on downstream was more than that of upstream. The comparison of the mean concentrations of heavy metals in water of the Tembi River with drinking water standards and those in the water used for agriculture suggests that the mean concentration of Cu and Zn lies within the standard range for drinking water and the mean concentration of Mn, Zn, and Pb lies within the standard range of agricultural water. The highest average concentration on downstream for Pb in water and for Mn in sediment was 1.95 and 820.5 ppm, respectively. Also, the lowest average concentration on upstream was identified for Cd in water and sediment 0.07 and 10 ppm, respectively. With regard to the results, it gets clear that using the water for recreational purposes, washing, and fishing is detrimental to human health and the environment.

scholarly journals The Use of Bark in Biomonitoring Heavy Metal Pollution of Forest Areas on the Example of Selected Areas in Poland

2020 ◽  
Vol 27 (2) ◽  
pp. 195-210
Author(s):  
Paweł Świsłowski ◽  
Jan Kříž ◽  
Małgorzata Rajfur
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Seasonal Changes ◽  
Betula Pendula ◽  
Absorption Spectrometry ◽  
Heating Season ◽  
Spectrometry Method ◽  
Białowieża Forest ◽  
North Eastern ◽  
Heavy Metal Deposition

AbstractIn the year 2016, passive biomonitoring studies were conducted in the forest areas of southern and north-eastern Poland: the Karkonosze Mountains (Kark), the Beskidy Mountains (Beskid), Borecka Forest (P. Bor), Knyszynska Forest (P. Kny), and Białowieza Forest (P. Bia). This study used bark from the tree, Betula pendula Roth. Samples were collected in spring (Sp), summer (Su), and autumn (Au). Concentrations of Mn, Fe, Ni, Cu, Zn, Cd, and Pb were determined for the samples using the atomic absorption spectrometry method with flame excitation (F-AAS). Based on the obtained results, the studied areas were ranked according to level of heavy-metal deposition: forests of southern Poland > forests of north-eastern Poland. Some seasonal changes in the concentrations of metals accumulated in bark were also indicated, which is directly related to their changing concentrations in the air during the calendar year, for instance, the winter heating season produces higher concentrations of heavy metals in the bark samples taken in spring. When deciding to do biomonitoring studies using bark, but also other biological materials, it is necessary to take into account the period in which the conducted research is done and the time when the samples are taken for analysis, because this will have a significant impact on the obtained results.

scholarly journals Use of Two Aquatic Snail Species as Bioindicators of Heavy Metals in Tigris River-Baghdad

2020 ◽  
pp. 1589-1592
Author(s):  
Harith Saeed Al-Warid ◽  
Hayder Z Ali ◽  
Ghassan Nissan ◽  
Abbas Haider ◽  
Ahmed Yosef
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Metal Pollution ◽  
Heavy Metal Pollution ◽  
Soft Tissues ◽  
Snail Species ◽  
Tigris River ◽  
The Mean ◽  
Mean Concentration ◽  
Bellamya Bengalensis

     Thirty individuals of Bellamya bengalensis and Physella acuta were collected and identified from the Tigris River in Baghdad during the period between October to November 2017. The efficiency of bioaccumulation of the two species as bioindicators for aquatic heavy metal pollution with Cd, Ni, Pb and Cu was investigated. Both snail species had the ability to accumulate heavy metals. The mean of Ni concentration in soft tissues of both snails was 1.53 ppm while the mean concentration of other heavy metals was significantly lower; they reached 0.51 ppm, 0.36 ppm and 0.29 ppm, respectively. While no significant differences between B. bengalensis and  P.acuta were noticed in the ability to accumulate the heavy metals. It is concluded that both snails shared the features of good bioindicators due to their sensitivity to pollution.:

scholarly journals Histological Structure of Reproductive Organ of Freshwater Female Crab, Barytelphusa Cunicularis (West-Wood)

2016 ◽  
Vol 5 (3) ◽  
pp. 161 ◽  
Author(s):  
Atul R. Chourpagar ◽  
Rumana Shaikh ◽  
G. K. Kulkarni
Keyword(s):  
Heavy Metals ◽  
Mercuric Chloride ◽  
Sublethal Concentration ◽  
Reproductive Organ ◽  
Histological Structure ◽  
Female Crab ◽  
Histological Changes ◽  
Yolk Granules ◽  
The Mean ◽  
Mean Concentration

<em>Mercury concentrations were recorded in water and tissue of Barytelphusa cunicularis from Pimpalwadi site (Jaikwadi Dam) near Aurangabad. The level of heavy metals in the ovary and spermatheca of crabs was investigated using Atomic Absorption Spectrophotometer (AAS). The mean concentration of mercury in the crab was 0.9 ±0.001 µg/g. A histopathological alteration in ovary and spermatheca was also studied. Several histological changes were noted in the ovary tissue i. e. Distortion of yolk granules, vacuolization, slight necrosis in the oocytes in the ovary and vacuolization observe in lumen, granular substances, sperm mass and spermathecal fluid was evenly distributed in the crab was observed after exposed to sublethal concentration (24<sup>th</sup> of LC<sub>50</sub>:1/5<sup>th</sup> 0.208 ppm) of mercuric chloride.</em>

scholarly journals Investigation of Heavy Metals Level in selected Boreholes around the Vicinity of some Cemeteries in Benin City, Nigeria

2021 ◽  
Vol 25 (5) ◽  
pp. 841-845
Author(s):  
C.A.E. Ibhadode ◽  
I.R. Ilaboya
Keyword(s):  
Heavy Metals ◽  
Pollution Index ◽  
Mean Value ◽  
Dry Season ◽  
Wet Season ◽  
Monthly Basis ◽  
Benin City ◽  
Standard Procedures ◽  
The Mean ◽  
Mean Concentration

Groundwater pollution by heavy metals such as lead, copper, nickel and iron is one of the major environmental issues of concern which has developed into a widely studied area. In this study, attempt was made to investigate the level of heavy metals in selected boreholes around the vicinity of cemeteries in Benin City. Seventy-two (72) samples of groundwater were taken from boreholes in 9 stations around the three cemeteries in Benin City on monthly basis. The samples were analysed for 7 heavy metals, in accordance with standard procedures. The heavy metals include; Zinc, Lead Iron, Copper, Cadmium, Nickel and Mercury. From the results of the study, a variation in the mean concentration of zinc was observed. The mean concentration of zinc in site 1 was 0.450mg/l, for site 2, it was 0.140mg/l and for site 3, it was 1.0533mg/l. For iron, mean concentration was 0.072mg/l in site 1. For site 2, mean concentration of iron was 2.140mg/l and for site 3, mean concentration of iron was 0.560mg/l. It was further revealed based on the results that mean value of heavy metals in groundwater around cemeteries in Benin City were generally lower during dry season compared to wet season. In addition, result of computed pollution index (Pi) revealed that the heavy metal with the highest potential to pollute groundwater is Cadmium, with Pi of 0.5333 and 0.400 representing dry season and wet season respectively.

scholarly journals Geochemical assessment of heavy metal pollution of river basin in Nigeria using stream sediment

2020 ◽  
Vol 7 (2) ◽  
pp. 198
Author(s):  
Oluwafunso Oladipo Awosusi ◽  
Adeshina Luqman Adisa
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Enrichment Factor ◽  
River Basin ◽  
Metal Pollution ◽  
Heavy Metal Pollution ◽  
Stream Sediment ◽  
The Body ◽  
The Mean ◽  
Mean Concentration

Heavy metal pollution has been a source of health problems in humans. These metals are persistent, toxic, non-degradable and often take a long time to be eliminated from the body. This study is, therefore, designed to assess heavy metal pollution of River Basin in Nigeria. Seventy stream sediment samples were systematically collected from an area, approximately 400km2, latitude 7O 00’ and 7O 15’N and longitude 5O 11’ and 5O 19’E. The pollution status of the sediments by heavy metals were assessed by Enrichment Factor (EF), Pollution Load Index (PLI) and Geo-accumulation Index (Igeo). The concentrations of the heavy metals were also compared with United States Environmental Protection Agency (USEPA) Sediment quality guidelines (SQG). The samples were dried in the laboratory, disaggregated, sieved to minus 80 (<177 microns) mesh size using nylon sieve. The sieved samples were, then, digested and the concentrations of As, Co, Fe, Mn, Ni, Pb, V and Zn were determined by Wavelength Dispersive X-ray Fluorescence Spectrometry (WD-XRFS). Results revealed that the mean concentrations of the heavy metals are in the order V>Zn>Pb>As>Ni>Co>Fe>Mn. Furthermore, the mean concentration of lead exceeded both the average world shale and the USEPA SQG values. However, the mean concentration of cobalt, nickel, manganese and zinc were lower than the average world shale values for these elements. The Enrichment Factor (EF) revealed that cobalt was moderately enriched while arsenic and lead were significantly enriched in the sediments. On the basis of the geoaccumulation index, the stream sediments were largely uncontaminated except at some sites that were moderately to strongly contaminated by As and Pb.  

scholarly journals Distribution Characteristics and Pollution Assessment of Soil Heavy Metals under Different Land-Use Types in Xuzhou City, China

2019 ◽  
Vol 11 (7) ◽  
pp. 1832 ◽  
Author(s):  
Aman Fang ◽  
Jihong Dong ◽  
Yingli An
Keyword(s):  
Heavy Metals ◽  
Land Use ◽  
Organic Carbon ◽  
Mining Area ◽  
Distribution Characteristics ◽  
Grassland Soils ◽  
Risk Levels ◽  
Land Use Types ◽  
The Mean ◽  
Mean Concentration

Xuzhou, as a mining city in China, has been experiencing 130 years of coal mining and processing. To explore the spatial distribution characteristics and pollution status of soil heavy metals (Cr, Cd, As, Hg, Zn, and Pb) under different land-use types, a total of 2697 topsoil samples were collected in all of the areas (except for water) of Xuzhou in 2016. Overall, the mean concentrations of Cr (70.266 mg/kg), Cd (0.141 mg/kg), As (10.375 mg/kg), Hg (0.036 mg/kg), Zn (64.788 mg/kg), and Pb (24.84 mg/kg) in Xuzhou soils were lower than the environmental quality standard for soils (GB15618-1995). However, the mean concentrations of Cr, Hg, and Pb exceeded their corresponding background values, with the mean concentration of Hg being almost three times its background value. For different land-use types, the highest mean concentration of Cr was concentrated in grassland soils. The mean concentrations of Cd, As, Zn, and Pb in mining area soils were higher than those in the other soils. The mean concentration of Hg was the highest in the built-up area soils. Based on the potential ecological risk assessment, the forestland, garden land, grassland, and others were at low and moderate risk levels, the farmland and mining area were at low, moderate, and high risk levels, and the built-up area was at various risk levels in Xuzhou. There was a significant positive correlation between Cr, Pb, and Hg concentrations and the corresponding organic carbon contents in the farmland, built-up area, garden land, forestland, and other soils ( p < 0.01 ). A high degree of correlation was found between Cr and Hg concentrations, as well as organic carbon contents in grassland soils, with values of p < 0.05 and p < 0.01 , respectively. An obvious correlation could be seen between Hg concentrations and organic carbon contents in mining area soils ( p < 0.01 ).

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