scholarly journals Heavy Metal Concentration of Surface Water, Sediment and Fishes Impacted by Crude Oil Pollution in Bodo/Bonny River, Nigeria

2021 ◽  
pp. 77-87
Author(s):  
David N. Ogbonna ◽  
Matthew E. Origbe
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Surface Water ◽  
Oil Pollution ◽  
Saline Water ◽  
Anthropogenic Activities ◽  
Heavy Metal Concentration ◽  
Fresh Fish ◽  
Run Off ◽  
Fish Samples

Heavy metals can be released into the aquatic environment through storm-water run-off and wastewater discharges and reprocessing from various industrial and anthropogenic activities. They have the potential to be toxic to biota above certain threshold concentrations while sediments in the marine ecosystems act as long-term sinks for many anthropogenic contaminants such as these organic pollutants. This study was therefore aimed at determining the heavy metal contents in the surface water, sediments and fishes from the Bodo/Bonny river. Sampling was done according to standard protocols. Surface water, sediment and fish samples were collected from 5 stations (BBW1, BBW2, BBW3, BBW4 and LFPW5) with LFPW5 serving as control.  Sediment was collected from 0-15 and 15-30 cm. The fish gills, liver, kidney etc. were excised from the rib for heavy metals (Pb, Fe, Zn, Cr, Cd etc) analysis using sterile scalpel. The results of heavy metal in surface water samples show that Zinc had a range of 173.1±10.21 to 179.3±11.01 mg/kg in all sampling locations above the permissible limit of DPR limit of 5 mg/kg for Brackish/ Saline water.  The sediment samples were loamy. The concentrations of trace metals in sediments revealed that Pb had the highest concentration of 48.61mg/kg at 0-15cm depth while Chromium had highest concentration of 41.54mg/kg at 15-30cm depth. Chromium, Cadmium and Copper increased with increase in depth at 15-30cm while Lead, Zinc and Iron took the reverse trend at 0-15cm depth. Heavy metal content of fish samples from the  river water show that the mean concentration values in the fresh fish was in the increasing order of Copper < Cadmium < Nickel < Lead <Iron< Zinc. The data generated from this study showed that there were actually heavy metals accumulations in fish tissues that were above the WHO permissible limits. The increased heavy metals concentration from all sites suggest that fishes that inhabit polluted areas risk bioaccumulation, which go on to affect the overall health of the human population that depend on such rivers for fishing, drinking or irrigation.

scholarly journals Health Risk Assessment of Liza parsia Fish Lipids: Heavy Metals and DDTs Contaminations

2021 ◽  
Vol 15 (3) ◽  
pp. 195-204
Author(s):  
Md. Abu Rayhan Khan ◽  
◽  
Muhammad Shamim Al Mamun ◽  
Mosummath Hosna Ara ◽  
◽  
...  
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Health Risk ◽  
Anthropogenic Activities ◽  
Hazard Quotient ◽  
Target Hazard Quotient ◽  
Toxic Substances ◽  
Organic Part ◽  
Fish Samples ◽  
Metal Levels

Background: Fish is a source of nutrition; however, toxic substances and heavy metals may enter human body due to consuming contaminated fish. The aim of this study was to investigate the levels of heavy metals and DDTs in Liza parsia, a fish species, and assess the health risk of the contaminants in the fish samples. Methods: The extracted fish lipid was added with n-hexane and H2SO4 and was kept for long time. The upper organic part was collected for the analysis of DDTs by gas chromatography equipped with electron capture detector. The fish samples were homogenized by wet digestion method, and the heavy metal contents were analyzed, using an atomic absorption spectrophotometer. The health risks of the fish samples were assessed based on target hazard quotient and target cancer risk. Results: The pesticide contents of DDT, DDD, DDE and DDTs in the fish samples were 0.0414, 0.000253, 0.015 and 0.0567ng/g, respectively. Also, the mean concentrations of Mn, Fe, Cu and Zn were 35.42±10.05, 318.75±242.45, 41.67±4.78 and 281.25±5.42 mg/kg, respectively. Of note, the Cd and Pb contents were below the detection limits. The concentrations of other heavy metals were above the reference limits, which can cause various disease processes. Conclusion: The contents of four heavy metals and DDTs in the samples were above the limits. The main sources of these substances are likely due to human anthropogenic activities. Fish and other edible aquatic animals should be monitored regularly and the heavy metal levels be determined and declared to the public.

scholarly journals The Assessment Of Sediment Contamination Level In The Lampung Bay, Indonesia: Heavy Metal Perspective

Jurnal Segara ◽  
2015 ◽  
Vol 11 (1) ◽  
Author(s):  
Fitri Budiyanto ◽  
Lestari
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Metal Concentration ◽  
Anthropogenic Activities ◽  
Dry Weight ◽  
Heavy Metal Concentration ◽  
Sampling Location ◽  
Contamination Level ◽  
Hazardous Chemical ◽  
Sediment Fraction

The potency and utilization of Lampung Bay has been recognized for their socio-economical and ecological values. However, heavy use of this Bay may alter the abundance of hazardous chemical like heavy metals. The aims of this study were to determine the concentration of Cd, Cu, Pb and Zn in the sediment and to assess Lampung Bay water condition. The observation of heavy metal content in sediment of Lampung Bay was conducted at 13 stations in March 2008. Analysis of heavy metals in sediment was conducted using three kinds of acid: HNO3, HCl and H2O2 while measurement was carried out by Atomic Absorption Spectrophotometer. The result indicated a variation of heavy metal concentration in sediment and that concentrations of Cd, Cu, Pb and Zn in sediment were 0.08 mg/kg dry weight, 22.99 mg/kg dry weight, 24.75 mg/kg dry weight and 118.48 mg/kg dry weight, respectively. Factors influenced heavy metal concentration in sediment in this study including the distance between sampling location and anthropogenic activities and the sediment fraction  SQG-Q index indicated that 7 stations have SQG-Q ≤ 0.1 whereas other 6 stations have 0.1≤ SQG-Q <1, meaning that more than half sampling stations are in uncontaminated state.  

scholarly journals Trend analysis of heavy metals, Ni, Pb, Cd and As in marine sediments – A case study of ONGC Block (KG OSN 2009/2) in Krishna-Godavari Basin, Bay of Bengal

2021 ◽  
Vol 02 (01) ◽  
pp. 051-059
Author(s):  
Pramod Kumar ◽  
G. L. Das ◽  
Atul Garg
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Trend Analysis ◽  
Metal Concentration ◽  
Bay Of Bengal ◽  
Anthropogenic Activities ◽  
Heavy Metal Concentration ◽  
Trend Line ◽  
Increasing Trend ◽  
Godavari Basin

Heavy metals can be termed as conservative pollutants, introduce into the aquatic systems as a result of the weathering of soils and rocks, from under water volcanic eruption and other anthropogenic activities. Thereby it changes the natural concentration of metals in seawater resulting in a ten or even hundred fold increase near the source of an effluent discharge. While some metals like manganese (Mn), copper (Cu), iron (Fe) and zinc (Zn) are biologically important for marine life, others like Nickel (Ni), Lead (Pb), Cadmium (Cd), and Arsenic (As) are non-essential and become toxic at higher concentrations. Associated to particulate matters, heavy metals tends to stay in solution for a very long time, but they will end up in the sediments, Therefore concentrations in the sediments are often higher than those in solution. In the sediments, these particles may form an important secondary source of contamination, even after the primary source has disappeared. Therefore, there is a need for timescale monitoring of the levels of these metals in all the marine resources, so as to establish the trends that could be linked to anthropogenic activities. In this paper, the effect of E&P activities of ONGC Block (KG OSN 2009/2) in Krishna-Godavari Basin, Bay of Bengal is studied, by carrying out a trend analysis of heavy metal concentration (60Ni, 208Pb, 111Cd, and 75As) in the sediments from this block. Sediments samples were collected from the ONGC Block (KG OSN 2009/2) using OSPAR commission guidelines and the heavy metal concentration values averaged out. These average values are used to analyze the trend for a period extending from 2015 up to 2019. In the years 2016, the pollution level recorded was minimum. Overall, from 2015 to 2019, 208Pb shows a decreasing trend line, but 60Ni, 111Cd, and 75As shows an increasing trend line. Albeit the increasing trend of 60Ni, 111Cd, and 75As concentration are a matter of concern, but all the values are below the ERL (effects range low) set by the National Oceanographic and Atmospheric Administration (NOAA), USA. Hence, it can be concluded that the oil field activity of ONGC in the Eastern Offshore has not made any significant impact on the marine environment, in terms of heavy metal pollution. A statistical analysis in terms of Relative Contamination Factors and Pollution Load Index has also been done in the paper.

scholarly journals Assessment of Heavy Metal Concentration in Soil Impacted Mining-Overburden in Enyigba, Abakaliki, Ebonyi State, Nigeria

2020 ◽  
Vol 24 (7) ◽  
pp. 1169-1173
Author(s):  
U.I. Uchendu ◽  
E. Biose ◽  
E.A. Ubuoh
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Metal Concentration ◽  
Soil Analysis ◽  
Anthropogenic Activities ◽  
Heavy Metal Concentration ◽  
International Standards ◽  
Disposal Site ◽  
Available Phosphorus ◽  
Mining Site

This study assessed the concentration of selected heavy metals (Lead and Zinc) from surrounding soil of Royal Salt mining company, Enyigba in Abakaliki LGA, Ebonyi State. Soil samples were collected from nine (9) different locations at depths of 0-15 and 15-30cm. Two (2) samples were collected from each of the nine locations, making it total of eighteen (18) samples. Soil analysis carried out were particle size distribution, pH, available Phosphorus, total Nitrogen, Organic Carbon, organic matter, Calcium, Magnesium, Potassium, Sodium, exchangeable acidity, Aluminium, effective cation exchange capacity, base saturation and two selected heavy metals, Lead (Pb) and Zinc (Zn). Results shows that heavy metals were highest in soil around the disposal site of mine waste. The highest value of Pb and Zn was recorded on tailing down (TD) 14.82 and 25.33mg/kg at 0-15cm depth, 7.22 and 18.93mg/kg at 15-30cm depth respectively. The accumulation of Pb and Zn at the mining site (TD) may be due to mining activities, civil, industrial/anthropogenic activities going on around the site. This study recommends regular monitoring of heavy metal  concentration in soil within the mining site and their disposal site in order to conform to international standards set by the WHO. Keywords: Abakaliki, Enyigba, Lead, Royal Salt Limited, Zinc

scholarly journals Levels of heavy metals in pelagic and benthic fish species in river Nun at Amassoma, Bayelsa State, Nigeri

2021 ◽  
Vol 3 (2) ◽  
pp. 015-021
Author(s):  
Koru Joe Alagoa ◽  
Jeremiah Akpodoite Yabefa ◽  
Erepamo Jonathan Yowei
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Fish Species ◽  
Soft Tissues ◽  
Heavy Metal Concentration ◽  
Benthic Fish ◽  
Standard Procedures ◽  
Significant Difference ◽  
Fish Samples ◽  
Benthic Fishes

The heavy metals content in three fish species from River nun Amassoma axis was investigated. This was done in order to gauge the concentration of heavy metals in fish tissues and to estimate the safety of consuming these fish species on human health. Three species (pelagic and benthic fishes) were collected from local fishermen at the landing jetty and analyzed for heavy metals in the soft tissues using standard procedures. The heavy metals investigated are Cadmium (Cd), Nickel (Ni), Lead (Pb) and Chromium (Cr). Result indicates that Cd>Ni>Pb>Cr in the fish samples analyzed while Chrysichthys auratus showed the greatest abundant characteristics of Cr, Pb, Ni, Cd. There was no significant difference (P>0.05) in concentrations of Cr and Ni for all fish species. However, the results showed that there is a significant difference (P<0.05) in Pb concentration between Chrysichthys auratus, Chrysichthys aluuensis and Petrocephalus bane bane. Cd concentration in the fish species reveal that there is a significant difference (P<0.05) between Chrysichthys auratus and Petrocephalus bane bane but no significant difference (P>0.05) between Chrysichthys auratus and Chrysichthys aluuensis and between Chrysichthys aluuensis and Petrocephalus bane bane Heavy metal in the fish species showed that Chrysichthys auratus>Chrysichthys aluuensis>Petrocephalus bane bane. All metal characteristics were lower than the suggested WHO permissible limit. Benthic fish species have a greater heavy metal concentration than the pelagic fishes. Based on the observation from this study, the continuous and sustained consumption of Chrysichthys auratus and indeed benthic fish species possess a higher risk to health, while Cd poisoning in fish is most culpable of pollution in River Nun at Amassoma. axis.

scholarly journals Accumulation of essential (copper, iron, zinc) and non-essential (lead, cadmium) heavy metals in Caulerpa racemosa, sea water, and marine sediments of Bintan Island, Indonesia

F1000Research ◽  
2021 ◽  
Vol 10 ◽  
pp. 699
Author(s):  
Tengku Said Raza’i ◽  
Thamrin Thamrin ◽  
Nofrizal Nofrizal ◽  
Viktor Amrifo ◽  
Hilfi Pardi ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Metal Contamination ◽  
Heavy Metal Contamination ◽  
Sea Water ◽  
Anthropogenic Activities ◽  
Heavy Metal Concentration ◽  
Atomic Absorption Spectrophotometry ◽  
Caulerpa Racemosa ◽  
Mining Areas

Background: Heavy metals are materials naturally occurring in nature and increase with a rise in human activity. Ex-mining areas and domestic waste from human settlements are sources of heavy metal contamination that enter and pollute water, which then accumulates in various organisms including the Caulerpa racemosa community. The accumulation of heavy metals in C. racemosa has a wide impact on the food chain in aquatic ecosystems and humans because this alga is a consumptive commodity.   Methods: Sampling of C. racemosa was carried out at seven sites on Bintan Island, Indonesia covering the eastern (Teluk Bakau, Beralas Pasir, Malang Rapat), northern (Berakit and Pengudang), western (Sakera), and southern parts (Tg. Siambang). Sampling was carried out during different monsoons, and heavy metals in water and sediment samples were measured to determine the heavy metal concentration. Heavy metals were analyzed by a spectrophotometric method using Atomic Absorption Spectrophotometry.   Results: The results showed that heavy metal concentrations fluctuate according to changes in the wind season, which carry currents and spread pollutants into the water. The concentration of metal in the water is also from anthropogenic activities. The heavy metal content of cadmium (Cd), lead (Pb), copper (Cu), iron (Fe), and zinc (Zn) in C. racemosa is high in locations close to settlements. Meanwhile, in seawater samples, Fe and Zn metals have the highest concentrations compared to others.  Conclusions: Ex-bauxite mines are a source of Fe and Zn metal contamination in the environment, especially at Tg. Siambang. The levels of these heavy metals in the sediment are also high, as surface particle deposits accumulate at the bottom of the sediment. In general, the levels of heavy metals Cd, Pb, Cu, Fe, and Zn increase in the northern monsoon because the dynamics of the water transport greater heavy metal pollution.

scholarly journals Heavy metal (Hg, Cd, Pb, Cu) in the long whiskered catfish (Mystus gulio Hamilton, 1822) in Bojonegara Coastal Waters of Banten Bay, Indonesia

2021 ◽  
Vol 869 (1) ◽  
pp. 012011
Author(s):  
K O Lestari ◽  
S Sulistiono ◽  
H Effendi
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Coastal Waters ◽  
Anthropogenic Activities ◽  
Tolerance Limit ◽  
High Accumulation ◽  
Safety Level ◽  
Fish Meat ◽  
Fish Samples ◽  
Surrounding Areas

Abstract Anthropogenic activities such as industrial, domestic, and shipping are the main contributors to the entry of heavy metals into the Banten Bay and the surrounding areas. This research was conducted from August to October 2020 in the coastal waters of Bojonegara, Banten Bay. This study aims to estimate the accumulation of heavy metals (Hg, Cd, Pb and, Cu) contained in long whiskered catfish (Mystus gulio Hamilton, 1822) and to determine the tolerance limit for consumption the fish in the Bojonegara coastal waters of Banten Bay. Fish samples were taken using the purposive sampling once per month. Based on the analysis, the heavy metal content in the fish meat were <0.001 mg/kg (Hg), <0.005 mg/kg (Cd), <0.030 mg/kg (Pb) and 0.699-10.920 mg/kg (Cu); the values were less than NADFC of Indonesia (2018) and the Regulation of the Minister of Health Republic of Indonesia 382/1989 with a standard of 0.500 mg/kg (Hg), 0.100 mg/kg (Cd), 0.200 mg/kg (Pb), 20 mg/kg (Cu). The fish caught in Bojonegara Coastal Waters of Banten Bay have moderate to high accumulation levels of Copper (Cu). The safety level for Mystus gulio is 16.03 kg fish/week (for adults) and 4.81 kg fish/week (for children).

scholarly journals ASSESSMENT OF THE LEVEL OF HEAVY METAL CONCENTRATION IN THE STREET DUST IN SOME SELECTED LOCATIONS IN ZARIA METROPOLIS, KADUNA STATE, NIGERIA

2020 ◽  
Vol 4 (3) ◽  
pp. 93-98
Author(s):  
Suleman H. Nimyel ◽  
M. M. Namadi
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Metal Concentration ◽  
Anthropogenic Activities ◽  
Standard Procedure ◽  
Waste Incineration ◽  
Heavy Metal Concentration ◽  
Street Dust ◽  
World Health ◽  
Health Organization

The study investigate the level of heavy metal concentration in street dust in some selected locations in Zaria metropolis, by monitoring the concentration of Chromium (Cr), Cadmium (Cd), Nickel (Ni), Lead (Pb), and Copper (Cu) for eight weeks. Street dust samples were collected by placing polyethylene bags on randomly selected roof tops and road sides at 20 cm to 30 cm to form composite sample. Sample collected were pre-treated and digested using standard procedure. Atomic Absorption Spectrophotometer (AAS) was used to determine the concentration of heavy metals. Results obtained showed that the concentration of Cr range from 16.670 ±2.20 μg/g to 31.895 ±1.845 μg/g, Cd concentration range from 0.280 ±0.042 μg/g to 1.900 ± 1.202 μg/g, Ni concentration range from 1.560 ±0.254 μg/g to 5.880 ±1.173 μg/g, Pb concentration range from 22.290 ±2.248 μg/g to 95.485 ±3.019 μg/g, Cu concentration range from 0.225 ±0.063 μg/g to 1.280 ±0.353 μg/g. The concentration of all heavy metals are below the limit set be World Health Organization (WHO) and therefore do not pose any health risk to humans. In sampled areas, the main sources of these heavy metals were anthropogenic activities such as open waste incineration, vehicle traffic, and ongoing construction at certain locations.

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.

ASSESSMENT OF HEAVY METAL CONCENTRATION IN COCONUT WATER

1970 ◽  
pp. 07-10
Author(s):  
MdDidarul Islam, Ashiqur Rahaman, Aboni Afrose
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Heavy Metal Concentration ◽  
Coconut Water ◽  
Toxic Heavy Metals ◽  
High Concentration ◽  
Toxic Heavy Metal ◽  
Low Concentration ◽  
Wet Ashing ◽  
Aas Method

This study was based on determining concentration of essential and toxic heavy metal in coconut water available at a local Hazaribagh area in Dhaka, Bangladesh. All essential minerals, if present in the drinking water at high concentration or very low concentration, it has negative actions. In this study, fifteen samples and eight heavy metals were analyzed by Atomic Absorption Spectroscopy (AAS) method which was followed by wet ashing digestion method. The concentration obtained in mg/l were in the range of 0.3 to 1.5, 7.77 to 21.2, 0 to 0.71, 0 to 0.9, 0 to 0.2, 0.9 to 17.3, 0.1 to 0.9, 0 to 0.9 and 0 to 0.7 for Fe, Ni, Cu, Cd, Cr, Zn, Pb and Se respectively. From this data it was concluded that any toxic heavy metals like Cd, Cr, Pb and Ni exceed their toxicity level and some essential nutrients were in low concentration in those samples. 

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