scholarly journals HISTOPATHOLOGYANDLEVELOF BIOACCUMULATION OFSOME HEAVY METALS IN FISH, CARASOBARBUSLUTEUS AND CYPRINUSCARPIOTISSUES CAUGHTFROM TIGRIS RIVER, BAGHDAD

2020 ◽  
Vol 51 (2) ◽  
pp. 698-704
Author(s):  
Mustafa & et al.
Keyword(s):  
Heavy Metals ◽  
Atomic Absorption ◽  
Cyprinus Carpio ◽  
Water Samples ◽  
Strong Impact ◽  
Human Beings ◽  
Fish Health ◽  
Lead And Cadmium ◽  
Tigris River ◽  
High Concentrations

This study was undertaken to detect the histopathology and level of bioaccumulation of lead and cadmium in water and in some freshwater fish (Carasobarbus luteus and Cyprinus carpio) tissues caught from Tigers River. A total of 100 water samples and 100 fish specimens (kidney, gills, liver and muscle) were collected from three sites of Tigris River. These samples were used to detect Pb and Cd via Atomic Absorption Spectrophotometry.Results exhibited high concentrations of Pb and Cd in water samples (>0.03 for both metals) and insome organs of the selected fish. It was observed that the levels of Pb and Cd accumulated in most organs (kidneys being most influenced) followed by gills, livers and muscles at three sites. The levels of these heavy metals were much above the maximum acceptable limit recommended by FAO and WHO. Histopathology was also conducted where heavy damages were noticed in both livers and gills in both fish species. The current study present data about increasing pollution in the Tigris River and it approves that it is having strong impact on fish health and on human beings.

Colloidal speciation of heavy metals in runoff and interstitial waters of a retention/infiltration pond

2006 ◽  
Vol 54 (6-7) ◽  
pp. 307-314 ◽  
Author(s):  
B. Béchet ◽  
B. Durin ◽  
M. Legret ◽  
P. Le Cloirec
Keyword(s):  
Heavy Metals ◽  
Strong Impact ◽  
Chemical Parameters ◽  
Runoff Water ◽  
Lead And Cadmium ◽  
Physico Chemical ◽  
High Concentrations ◽  
Chemical Conditions ◽  
The Impact ◽  
Interstitial Waters

The thickness of non-saturated zone and physico-chemical conditions are important parameters to assess the impact of infiltration ponds on water resources with respect to heavy metals transfer. As changes in physico-chemical parameters of solutions have a strong impact on the mobility of colloidal phases in sediments and soils, the colloidal facilitated transfer of heavy metals has to be investigated. Therefore, this study focuses on the characterization of runoff, surface and interstitial waters in a retention/infiltration pond collecting runoff waters of a bridge near Nantes. Physico-chemical parameters and chemical analyses were performed on the waters during about one year. The separation of dissolved and colloidal fractions was carried out by filtration and ultrafiltration for one sample of surface and interstitial waters. Until now, the runoff waters were only filtered at 0.45 μm. The comparison of physico-chemical data shows that the minor variations of runoff water parameters are mitigated in basin and in soils but strong variations impact the composition of interstitial waters. High concentrations of zinc, copper and still of lead are measured in runoff. Lead and cadmium seem to be associated to colloidal and particulate fractions while zinc, copper, nickel and chromium are distributed in all fractions.

scholarly journals Distribution of Some Heavy Metals in Tigris River middle of Iraq

2014 ◽  
Vol 11 (2) ◽  
pp. 983-990 ◽  
Author(s):  
Baghdad Science Journal
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Water Samples ◽  
Tigris River ◽  
Significant Difference ◽  
High Concentrations

This study was conducted from February 2010 to December 2010. Water Samples were collected every two months in three stations in Baghdad city. The study involved the assessment of concentrations of some heavy metals such as: Chromium, Cadmium, Copper, Iron, Lead, Manganese, Nickel and Zinc. the values of chromium were undetected for the entire of the study, while the rest of the heavy metal were ranged between 0.001 -0.438 mg / l, ND -0.077 mg / L, ND -0.778 mg / l, 0.36 - 0.011 mg / l, 0.011-0 .08mg/ l, ND - 0.1985 mg / l, ND -0.0416 mg / l, respectively. The results showed that the concentrations of heavy metals were fluctuated during the study period, except Lead which have high concentrations and exceeded the permit limits in all stations. Result reveled that station 3 was more polluted than other stations. Also, for more confirm results the SPSS program was used to test the significant difference between the stations.

scholarly journals Spatial Variation of Water Chemistry in Aries River Catchment Western Romania

2021 ◽  
Vol 11 (14) ◽  
pp. 6592
Author(s):  
Ana Moldovan ◽  
Maria-Alexandra Hoaghia ◽  
Anamaria Iulia Török ◽  
Marius Roman ◽  
Ionut Cornel Mirea ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Water Quality ◽  
Water Chemistry ◽  
Water Samples ◽  
Mine Drainage ◽  
Pollution Indices ◽  
Mining Activities ◽  
River Catchment ◽  
High Concentrations ◽  
The Impact

This study aims to investigate the quality and vulnerability of surface water (Aries River catchment) in order to identify the impact of past mining activities. For this purpose, the pollution and water quality indices, Piper and Durov plots, as well vulnerability modeling maps were used. The obtained results indicate that the water samples were contaminated with As, Fe, Mn, Pb and have relatively high concentrations of SO42−, HCO3−, TDS, Ca, K, Mg and high values for the electrical conductivity. Possible sources of the high content of chemicals could be the natural processes or the inputs of the mine drainage. Generally, according to the pollution indices, which were correlated to high concentrations of heavy metals, especially with Pb, Fe and Mn, the water samples were characterized by heavy metals pollution. The water quality index classified the studied water samples into five different classes of quality, namely: unsuitable for drinking, poor, medium, good and excellent quality. Similarly, medium, high and very high vulnerability classes were observed. The Durov and Piper plots classified the waters into Mg-HCO3− and Ca-Cl− types. The past and present mining activities clearly change the water chemistry and alter the quality of the Aries River, with the water requiring specific treatments before use.

scholarly journals PEMANFAATAN KITOSAN DARI LIMBAH CANGKANG BEKICOT (Achatina fulica) SEBAGAI ADSORBEN LOGAM BERAT SENG (Zn)

Konversi ◽  
2018 ◽  
Vol 5 (1) ◽  
pp. 22
Author(s):  
Stevano Victor M. ◽  
Bayu Andhika ◽  
Isna Syauqiah
Keyword(s):  
Heavy Metals ◽  
Atomic Absorption ◽  
Water Samples ◽  
Size Variation ◽  
Second Phase ◽  
Achatina Fulica ◽  
Snail Shell ◽  
Production Stage ◽  
Two Phases ◽  
Chitosan Powder

Abstrak- Telah dilakukan pemanfaatan cangkang bekicot (Achatina fulica) sebagai adsorben logam berat seng (Zn). Penelitian ini bertujuan untuk mengetahui jumlah kitosan yang didapat dari cangkang bekicot, dan mengetahui kemampuan adsorben kitosan dalam uji adsorpsi yang menggunakan sampel air yang tercemar seng (Zn). Pembuatan kitosan dari cangkang bekicot dilakukan dengan dua tahap yaitu tahap pembuatan kitosan dengan variasi ukuran kitosan 250 micron  dan 355 micron. Tahap pembuatan kitosan terdiri dari pembuatan serbuk cangkang bekicot, deproteinasi, demineralisasi, depigmentasi dan deasetilasi. Tahap  ke dua yaitu uji penyerapan kitosan terhadap logam berat seng (Zn) dengan variasi jumlah massa kitosan yang digunakan yaitu: 1 gram, 3 gram, 6 gram dan 9 gram. Sampel tersebut diuji dengan menggunakan Atomic Absorption Spectrophotometric  (AAS) untuk mengetahui konsentrasi logam berat seng (Zn) yang terkandung di dalamnya. Hasil penelitian menunjukan bahwa kitosan yang didapat dari cangkang bekicot untuk ukuran 250 micron yang sebesar 95,27%, dan untuk ukuran 355 micron yaitu sebesar 96,18%. Daya serap optimum kitosan didapat pada kitosan berukuran 250 micron  dengan massa kitosan 9 gram. Kata kunci: Adsorbsi, mikron, cangkang bekicot dan logam berat seng (Zn) Abstract- The used of snail shell (Achatina fulica) as adsorbent of heavy metals zinc (Zn). This study aims to determine the amount of chitosan derived from snail shells, and knowing the ability of chitosan adsorbent in adsorption tests using water samples were contaminated zinc (Zn). Preparation of chitosan from the shells of snails be done in two phases: the manufacture of chitosan with chitosan size variation of 250 micron and 355 micron. Production stage consists of the manufacture of chitosan powder snail shells, deproteinization, demineralization, depigmentasi and deacetylation. The second phase of the test chitosan absorption of heavy metals zinc (Zn) with a variation of the mass amount of chitosan that is used as follows: 1 gram, 3 grams, 6 grams and 9 grams. The sample is tested by using Atomic Absorption Spectrophotometric (AAS) to determine the concentration of heavy metals zinc (Zn) contained in it. The result showed that chitosan is obtained from the snail shell to the size of 250 microns, which equal to 95.27%, and for the size of 355 microns that is equal to 96.18%. Optimum absorption of chitosan obtained at chitosan measure 250 microns with a mass of 9 grams of chitosan.                                                                                                                                        Keywords: Adsorption, micron, snail shells and heavy metals zinc (Zn).

scholarly journals Bioaccumulation of Some Heavy Metals in Ayre Fish (Sperata Aor Hamilton, 1822), Sediment and Water of Dhaleshwari River in Dry Season

2012 ◽  
Vol 40 (1) ◽  
pp. 147-153 ◽  
Author(s):  
Abu Tweb Abu Ahmed ◽  
Suman Mandal ◽  
Didarul Alam Chowdhury ◽  
Abu Rayhan M Tareq ◽  
M Mizanur Rahman
Keyword(s):  
Heavy Metals ◽  
Nitric Acid ◽  
Atomic Absorption ◽  
Water Samples ◽  
Dry Weight ◽  
Acid Digestion ◽  
Fish Organs ◽  
Flame Atomic Absorption ◽  
Flame Atomic Absorption Spectrophotometer ◽  
Nitric Acid Digestion

The present study was carried out to determine the level of bioaccumulation of some heavy metals in a freshwater fish Ayre (Sperata aor Hamilton, 1822) collected from Rajfulbaria (23°48?56.36? N and 90°14?54.04? E) of  Dhaleshwari river. Four heavy metals, namely chromium (Cr), copper (Cu), lead (Pb), and cadmium (Cd) were selected for this study. Metal concentrations were   determined by Flame Atomic Absorption Spectrophotometer after nitric acid  digestion of samples. The concentrations of accumulated heavy metals in fish were  also compared with the concentrations of metals in the sediments and waters of  that river. The level of bioaccumulations in different organs of S. aor were determined separately and compared among them. Average bioaccumulation levels  in S. aor were Cr: 1.458 mg/kg, Cu: 31.500 mg/kg, Pb: 18.776 mg/kg and Cd:  0.487 mg/kg of dry weight. The levels of heavy metals in sediments were Cr: 27.393 mg/kg, Cu: 37.450 mg/kg, Pb: 15.797 mg/kg and Cd: 2.083 mg/kg, and in water were Cr: 0.130 ppm, Cu: 0.000 ppm, Pb: 0.201 ppm and Cd: 0.001 ppm.The bioaccumulation of these four heavy metals in fish organs, sediment and  water samples were also compared with FAO approved standard levels and other  related studies, and found that the levels of bioaccumulation in the Dhaleshwari river exceeded all the standard levels. DOI: http://dx.doi.org/10.3329/bjz.v40i1.12904 Bangladesh J. Zool. 40(1):147-153, 2012

scholarly journals Kandungan Logam Berat Timbal (Pb) Dan Kadmium (Cd) Pada Air, Sedimen Dan Organ Mangrove Di Perairan Tulehu

2020 ◽  
Vol 8 (2) ◽  
pp. 149
Author(s):  
NUR ALIM NATSIR ◽  
YUSRIANTI HANIKE ◽  
MUHAMMAD RIJAL ◽  
SUHAEDIR BACHTIAR
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Atomic Absorption ◽  
Key Words ◽  
Aquatic Environment ◽  
Aquatic Organisms ◽  
Atomic Absorption Spectrophotometer ◽  
Lead And Cadmium ◽  
Stems And Leaves ◽  
And Control

Differences in the accumulation of heavy metals lead and cadmium in water, sediments and mangrove organs (roots, stems and leaves) found in the waters of Tulehu, Maluku Province. Samples were taken from three observation stations, namely stopping ships that are not operating (station 1), Tulehu harbor (station 2) and Control (station 3). Pb and Cd were analyzed using Atomic Absorption Spectrophotometer. Pb and Cd content in sediments is higher than in water. The highest Pb and Cd content is found in the stems then in the roots and leaves (stems> roots> leaves). Mangroves are one of the aquatic organisms that have the ability to absorb heavy metals in the aquatic environment. Key words: Mangrove, Pb, Cd, Heavy Metal

scholarly journals Studies on some heavy metal contents of ximenia americana and sclerocarya birrea wild fruit from North-Eastern Nigeria.

2021 ◽  
Vol 46 (2) ◽  
Author(s):  
G.A Maspalma ◽  
U.A Maryam ◽  
M.B. Hamid ◽  
K.S Hamman ◽  
S.P Artimas
Keyword(s):  
Heavy Metals ◽  
The Body ◽  
Lead And Cadmium ◽  
Sclerocarya Birrea ◽  
Wild Fruits ◽  
Wild Fruit ◽  
Metal Contents ◽  
North Eastern ◽  
Ximenia Americana ◽  
High Concentrations

Fruits play important role in providing the individuals daily dietary needs from vitamins, iron, and some metals that are needed in the body as dietary supplement or as an important element that form some hormones or enzymes in small concentrations, if exists in high concentrations become toxic with side effects. The presence of heavy metals such as of Fe, Cd, Pb, Cr, Mn, Ni, Co, and Zn in Ximenia americana and sclerocarya birrea wild fruits were determined using standard methods such as AAS. Results obtained from this study revealed that the concentration of the metals in sclerocarya birrea was Iron, (8.83 ± 0.10) Cadmium (0.01 ± 0.00) Lead (0.04 ± 0.02) Chromium (0.19±0.10) Manganese (4.27 ± 0.20) Nickel (0.21 ±0.10) Cobalt (0.09 ±0.01) and Zinc (2.96 ± 0.02) mg/g. On the other hand, Ximenia americana content was Iron, (6.37 ± 0.10) Cadmium (0.02 ± 0.01) Lead (0.01 ± 0.00) Chromium (0.24±0.01) Manganese (2.50 ± 0.10) Nickel (0.29 ±0.10) Cobalt (0.17 ±0.00) and Zinc (2.31 ± 0.06) mg/g respectively. Highest concentration of Iron was recorded as (8.83 ± 0.10) mg/g in the sclerocarya birrea sample analyzed, while Lead and Cadmium were found to be the least with concentration of (0.01 ±0.00) mg/g in both samples. Their concentrations are within the maximum allowable concentration (MAC) set by FAO/WHO. The findings of this study reveal that there are no health risks associated with the consumption of heavy metals through the intake of these two fruits.

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