scholarly journals The Relation between Bacterial and Heavy Metal Water Pollution and Blood Micronuclei as Biomarkers in the Tigris River Fish

2017 ◽  
Vol 14 (1) ◽  
pp. 126-134 ◽  
Author(s):  
Baghdad Science Journal
Keyword(s):  
Heavy Metal ◽  
River Water ◽  
Fish Species ◽  
Water Samples ◽  
Bacterial Count ◽  
Heavy Metal Concentration ◽  
Viable Count ◽  
Tigris River ◽  
Quality Of Water ◽  
Garra Rufa

The objective of this study is to evaluate the bacterial count and heavy metal concentration of river water on fish micronuclei. Fish and water samples are carried out in 1 May to 1 June 2013 from Tigris River. A total of fifty three fish sample are studied. The bacteriological quality of water showed that the total viable count is ranged from 150×103 to 352×103 cfu/ml and fecal coliform counts was 1250 cell/100ml during the study period. All the metals (Cu, Hg, Pb, and Zn) are within the normal limit, but Cd was slightly elevated in river water samples. The appearance of micronuclei in red blood cells of all fish species is detect , by recording a larger number of it, in ( Abu Alsomere , Hishne , Bannini Kaber al fam & Karkoor ahmar) species compared with (Abu AL hakam , Nabbash , Kattan , Himri & Tela shami ) species. There is a difference in the percentages of the leukocytes types in different fish species, the highest percentage (12.3) of lymphocyte is recorded in Barbus xanthopterus and the lowest (1.5) is in Garra rufa

scholarly journals Evaluation of Toxicity and Bioremediation of Contaminated Drinking Water Sources in Delta State, Nigeria

2020 ◽  
pp. 8-16
Author(s):  
Daniel Olorunfemi ◽  
Richard Uzakah ◽  
Romeo Ofomata ◽  
Charles Okoruwa
Keyword(s):  
Heavy Metal ◽  
Drinking Water ◽  
Metal Concentration ◽  
Water Samples ◽  
Cost Effective ◽  
Bacterial Count ◽  
Heavy Metal Concentration ◽  
Total Bacterial Count ◽  
Potential Cost ◽  
Permissible Limits

Drinking water samples were collected from boreholes in six locations in Ughelli and environs in Delta State of Nigeria and were treated by filtration through a substrate colonized with mycelium of Pleurotus tuber-regium. Water samples were analysed for pH, heavy metal concentration and microbiological content before and after filtration. Results obtained showed that the pH of unfiltered water samples were acidic (5.0 – 5.8) and below the WHO and SON permissible limits for drinking water. The same trend was followed by the concentrations of heavy metals such as lead, iron, zinc and chromium. Water samples from all six locations also had high total bacterial and coliform counts. Filtration through the mycelium colonized substrate showed adjustment of pH to a range within the WHO permissible limits. Reduction in heavy metal concentration ranged from  45.0 – 100%. Total bacterial count of mycofiltered water samples was impressively reduced by 77.3 – 100% and coliform count was not detected. The results obtained in this study makes mycofiltration a potential cost-effective and efficient technique for the treatment of potable water for domestic use.

INFLUENCE OF THE ECOLOGICAL STATE OF THE SEREPOK RIVER (VIETNAM) ON ACCUMULATION OF HEAVY METALS IN ORGANS OF FISH

2017 ◽  
pp. 98-105
Author(s):  
Ngo The Cuong ◽  
Tran Hoan Quoc ◽  
Svetlana Vasilievna Zolotokopova
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
River Water ◽  
Bottom Sediments ◽  
Heavy Metal Concentration ◽  
Industrial Areas ◽  
Industrial Regions ◽  
Cadmium Lead ◽  
Sarotherodon Galilaeus ◽  
Water Bottom

The article focuses on the study of change of containing heavy metals (zinc, copper, iron, cadmium, lead, arsenic) in the abiotic and biotic components of the Serepok river (Vietman) influenced by wastewater discharge from industrial areas. Heavy metal content was determined in the river water and bottom sediments in the four zones: above and within the boundaries of industrial regions Xoa Phu and Tam Thang and in two water reservoirs situated below the boundaries of those industrial areas. Tilapia Galilean ( Sarotherodon galilaeus ), Hemibagrus ( Hemibagrus ), and sazan ( Cyprinus carpio ) caught in these areas were the hydrobionts under study in which liver, gills, skeleton and muscles accumulation of heavy metals was detected. In the organs of fish caught in the river within industrial region, heavy metals concentration was 3-7 times higher. The greatest concentration of heavy metals was found in the liver and gills of fish caught in the boundaries of industrial regions, the least concentration was in the muscles. In most cases, significant correlation between heavy metal concentration in organs of fishes and in river water, bottom sediments has been revealed.

Magneto-Optical Measurements of Magnetic Nanoparticles Using Laser for Environmental Applications

2020 ◽  
Vol 1002 ◽  
pp. 498-507
Author(s):  
K.Ibrahim Rawa ◽  
Aseel Ibrahim Mahmood ◽  
Radhi M. Chyad
Keyword(s):  
Heavy Metal ◽  
Iron Oxide ◽  
Magnetic Nanoparticles ◽  
River Water ◽  
Optical Measurements ◽  
Optical Parameters ◽  
Tigris River ◽  
Removal Of Heavy Metals ◽  
Rapid Removal ◽  
Low Threshold

The project presents the use of laser and magnetic nanoparticles like iron oxide (Fe3O4) in heavy metal detection in water. In this method, metal Nanomagnets particles result in a magnetic reagent for the rapid removal of heavy metals from solutions or water of magnitude to concentration 0.25wt%. This can be done by measuring the magneto-optical parameters (as a hysteric loop) of the solution as an indication of the change in concentrations of the detected heavy metal. The samples used in this work using the Tigris River water that supported from al-Wathba lab. water projects of the Baghdad water directorate at Baghdad-Iraq. Putting here a study of the effect of graphene and metal oxide such as cobalt and nickel which doped the ferrofluid (iron oxide) /polymer/water (Tigris river water) composite on the magneto-optical properties. The graphene adding had the best result in low threshold magnetic field which was 67mGauss, give the motive to use it in fast sensing and detecting of heavy metal in Tigris river water.

scholarly journals Heavy metal concentration in selected fish species from Eleyele reservoir Ibadan Oyo State South-western Nigeria

2014 ◽  
Vol 8 (7) ◽  
pp. 422-427
Author(s):  
A. A. Ayeloja, ◽  
F. O. A. George, ◽  
A. Y. Shorinmade, ◽  
W. A. Jimoh, ◽  
Q. O. Afolabi, ◽  
...  
Keyword(s):  
Heavy Metal ◽  
Metal Concentration ◽  
Fish Species ◽  
Heavy Metal Concentration

Status of Heavy Metal Contaminations of River Water of Dhaka Metropolitan City

2013 ◽  
Vol 5 (2) ◽  
pp. 349-353 ◽  
Author(s):  
MAA Mokaddes ◽  
BS Nahar ◽  
MA Baten
Keyword(s):  
Heavy Metal ◽  
River Water ◽  
Water Samples ◽  
Potable Water ◽  
Chemical Properties ◽  
Living Organism ◽  
Low Salinity ◽  
Metropolitan City ◽  
Safe Limit ◽  
Major Chemical

A study was conducted to evaluate the level of water pollution and its influence on the chemical properties of river water of Dhaka metropolitan city. The water samples were collected from forty five locations of Dhaka metropolitan city during February to March, 2008. Analysis of the major chemical contaminations of river water samples containing Cu, Zn, Mn, As, Pb and Cd was conducted at the Central Laboratory of Bangladesh Agricultural University, Mymensingh. The heavy metal concentrations of river water were recorded as in case of Cu = 0.006 ppm, in case of Zn = 0.021 ppm, in case of Mn = 0.075 ppm, in case of As = 0.003 ppb, in case of Pb = 0.002 ppm and in case of Cd = 0.012 ppm, respectively. The pH of river ranged from 6.28 to 7.61. The EC values were 17.61 to 34.61 ?Scm-1, revealed that all the water samples were low salinity and also excellent for irrigation. According to drinking water (Potable water) and public water standard, Mn and Cd toxicity were detected in river water. For aquaculture standard Mn and Cd were found at harmful level for all living organism. Some water were found unsuitable due to higher concentration of Mn over the recommended limit but other ions like Zn, As, and Pb were within the 'safe limit'.DOI: http://dx.doi.org/10.3329/jesnr.v5i2.14842 J. Environ. Sci. & Natural Resources, 5(2): 349-353 2012

scholarly journals Heavy Metal Concentration in Eight Fish Species from Epe Lagoon (Nigeria)

2019 ◽  
Vol 21 (1) ◽  
pp. 69-82
Author(s):  
Iyabode Olusola Taiwo ◽  
Olaniyi Alaba Olopade ◽  
Nathanael Akinsafe Bamidele
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Atomic Absorption ◽  
Metal Concentration ◽  
Fish Species ◽  
Heavy Metal Concentration ◽  
Atomic Absorption Spectrophotometry ◽  
Human Consumption ◽  
Heavy Metal Concentrations ◽  
Absorption Spectrophotometry

Abstract This research was undertaken to find out the levels of five heavy metals (Cu, Fe, Mn, Pb, and Zn) in the muscles of eight fish species from Epe Lagoon. The levels of heavy metals were determined by atomic absorption spectrophotometry after digestion of the samples using Kjldahl heating digester. The heavy metal concentrations among the fish species were statistically dissimilar (P < 0.5). The heavy metals of Pb, Fe, and Mn were above the FAO/WHO agreeable limits for human consumption.

scholarly journals Ultra-portable, smartphone-based spectrometer for heavy metal concentration measurement in drinking water samples

2021 ◽  
Vol 11 (11) ◽  
Author(s):  
Satyam Srivastava ◽  
Vinay Sharma
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Drinking Water ◽  
Data Collection ◽  
Metal Concentration ◽  
Water Samples ◽  
Heavy Metal Concentration ◽  
Concentration Measurement ◽  
Visible Radiation ◽  
Drinking Water Samples

AbstractHeavy metals are very toxic and hazardous for human health. Onsite screening of heavy metal contaminated samples along with location-based automation data collection is a tedious job. Traditionally high-end equipment’s such as gas chromatography mass spectrometer (GC–MS) and atomic absorption spectrometers have been used to measure the concentration of different heavy metals in water samples but most of them are costly, bulky, and time consuming, and requires expert human intervention. This manuscript reports an ultra-portable, rapid, cost-effective, and easy-to-use solution for onsite heavy metal concentration measurement in drinking water samples. Presented solution combines off-the-shelf available chemical kits for heavy metal detection and developed spectrometer-based readout for concentration prediction, quality judgment, and automatic data collection. Two chemical kits for copper and iron detection have been imported form Merck and have been used for overall training and testing. The developed spectrometer has capability to work with smartphone-based android app and also can work in standalone mode. The developed spectrometer uses white light-emitting diode as a source and commercially imported spectral sensor (AS7262) for visible radiation reception. A low-power sub-GHZ-based wireless embedded platform has been developed and interfaced with source and detector. A power management module also has been designed to monitor the battery status and also to generate low battery indication. Overall modules has been packaged in custom designed enclosure to avoid external light interference. The developed system has been trained using standard buffer samples with known heavy metal concentrations and further tested for water samples collected from institute colony and nearby villages. The obtained results have been validated with commercially imported system from HANNA instruments, and it has been observed that developed system has shown excellent accuracy to predict heavy metal concentration (tested for Fe and Cu) in water samples.

scholarly journals Heavy Metal Pollution and Chemical Profile of Cauvery River Water

2009 ◽  
Vol 6 (1) ◽  
pp. 47-52 ◽  
Author(s):  
Abida Begum ◽  
M. Ramaiah ◽  
Harikrishna ◽  
Irfanulla Khan ◽  
K. Veena
Keyword(s):  
Heavy Metal ◽  
River Water ◽  
Metal Concentration ◽  
Industrial Effluents ◽  
Heavy Metal Concentration ◽  
Cauvery River ◽  
Fish Muscles ◽  
High Carbonate ◽  
Cr Concentration

Analysis of water, plankton, fish and sediment reveals that the Cauvery River water in the downstream is contaminated by certain heavy metals. Water samples have high carbonate hardness. Concentrations of all elements and ions increase in the downstream. Main ions are in the following order: Na > HCO3>Mg > K > Ca> Cl > SO4. Heavy metal concentration in water was Cr >Cu ≈ Mn > Co > Ni > Pb > Zn, in fish muscles Cr > Mn > Cu > Ni > Co > Pb ≈ Zn, in phytoplanktens Co > Zn > Pb > Mn > Cr and in the sediments the heavy metal concentration was Co > Cr > Ni ≈ Cu > Mn > Zn > Pb. Although, the quality of Cauvery River may be classified as very good based on the salt and sodium for irrigation, Zn, Pb and Cr concentration exceeded the upper limit of standards. Metal concentrations in the downstream indicate an increase in the pollution load due to movement of fertilizers, agricultural ashes, industrial effluents and anthropogenic wastes. An immediate attention from the concerned authorities is required in order to protect the river from further pollution.

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