The levels of lead (Pb) in water, sediment and a commercially important fish species (&lt;i&gt;Chrysichthys nigrodigitatus&lt;/i&gt;) (Lacepède 1803) from Ologe Lagoon, Lagos, Nigeria

Ndimele, Prince Emeka; Jenyo‐Oni, Adetola; Jibuike, C. C.

doi:10.4314/jext.v8i1.52421

Cited by 3 publications

(3 citation statements)

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“…Abdel-Kader and Mourad 27 also detected that the Pb concentration in Clarias gariepinus from lake Maryout, Egypt was above the permissible limit given by WHO. Ndimele et al 28 reported that the level of Pb in tissues of C. nigrodigitatus was higher than the WHO standard limit. Pb is a very toxic heavy metal that could cause serious damage to fish gills thereby altering the metabolic rate of fish and reducing oxygen consumption.…”

Section: Discussionmentioning

confidence: 96%

Heavy Metal Analysis in Silver Catfish (Chrysichthys nigrodigitatus) from Asejire and Erinle Reservoirs in Southwest Nigeria

Andrew,

Okediran,

Muse

2022

Singapore J. Sci. Res

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Background and Objective: Fish tend to accumulate heavy metals from the aquatic ecosystem due to their high trophic position in the food chain. This study was carried out to analyse the concentration of some heavy metals in selected organs of Chrysichthys nigrodigitatus collected from Asejire and Erinle Reservoirs. Materials and Methods: Measurements of eight morphometric characters were recorded for fish samples from Asejire and Erinle Reservoirs. Heavy metals in the fish and water samples were analysed using atomic absorption spectrophotometer. Results: There was a positive correlation between the weight and standard length of the C. nigrodigitatus samples from Asejire and Erinle Reservoirs. The liver accumulated the highest level of heavy metals while the muscle had the least bioaccumulation level. A correlation coefficient was observed between fish size and heavy metal concentration in fish. The level of heavy metals in C. nigrodigitatus samples from Asejire and Erinle Reservoirs exceeded the safe limit recommended by World Health Organisation (WHO). The water samples had levels of heavy metals within the tolerable range set by WHO. Conclusion: Therefore, it is necessary to continuously examine heavy metals in Asejire and Erinle Reservoirs since the reservoirs and their biota serve the surrounding towns.

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Section: Discussionmentioning

confidence: 96%

Heavy Metal Analysis in Silver Catfish (Chrysichthys nigrodigitatus) from Asejire and Erinle Reservoirs in Southwest Nigeria

Andrew,

Okediran,

Muse

2022

Singapore J. Sci. Res

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“…Research Higher levels of Pb have been reported in surface water in Nigeria, exceeding water quality criteria for aquatic life. [23][24][25] Lead levels in these surface water bodies may pose both acute and chronic toxicity to the aquatic organisms, thereby putting the ecosystem at risk. Furthermore, significant numbers of the Nigerian population, especially rural dwellers, depends on surface water for direct use for domestic activities, including cooking.…”

Section: Figure 2 -Materials Flow Chart Of Lead Acid Batteries Of Motomentioning

confidence: 99%

Material and Substance Flow Analysis of Used Lead Acid Batteries in Nigeria: Implications for Recovery and Environmental Quality

Ogundele

Ogundiran

Babayemi³

et al. 2020

Journal of Health and Pollution

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Background. As resources become scarce, information from material and substance flow analysis can help to improve material recovery policy. The flow of toxic substances such as lead (Pb), cadmium (Cd), chromium (Cr), arsenic (As) and antimony (Sb) can be used as a basis for appropriate risk management decisions for optimum environmental quality. Objectives. The present study examined a material and substance flow analysis of used lead acid batteries (ULAB) from motor vehicles and implications for environmental quality in Nigeria. Methods. Information on motor vehicle imports was obtained from the literature. Mathematical models were constructed and used for the material and substance flow analysis. Samples of 50 brands of ULAB pastes were digested using a microwave digestion system followed by elemental determination (Pb, Cd, silver (Ag), As, cobalt (Co), calcium (Ca), Cr, copper (Cu), iron (Fe), manganese (Mn), nickel (Ni), Sb, selenium (Se), and tellurium (Te)) with inductively coupled plasma optical emission spectroscopy. Results. Approximately 4.8 million tons (Mt) lead acid batteries (LAB) from vehicles was used in Nigeria between 1980 and 2014, out of which approximately 2.6 Mt had reached end-of-life (EoL) stages. From the total amount in EoL, approximately 2.3 Mt was recycled, and 0.3 Mt was landfilled. Among the toxic elements, Pb, Cd and As were the most abundant in ULAB; and of the valuable elements, Fe and Cu had the highest levels. Approximately 3.5 Mt of Pb was used in the past (1980–2014) in ULAB for motor vehicles, out of which approximately 1.9 Mt tons was in EoL stages. Discussion. The results revealed that the battery pastes were heterogeneous. Only Pb exceeded the total threshold limit concentration (TTLC) of 1000 mg/kg. The TTLC describes the safe levels or concentration of heavy metals in the environment. The levels observed for other metals in this study were below the TTLC values. The present study estimated an average life span for lead acid batteries in motor vehicles in Nigeria of 5 years, suggesting an additional 2.2 Mt at EoL by 2019. High concentrations of Pb in air, water and soil carry the potential for contamination of food products, especially in Nigeria, where food is traditionally prepared and sold in open air markets in an unregulated manner. Conclusions. High amounts of toxic elements present in the various life cycle stages signal potential environmental and human health hazards. Competing Interests. The authors declare no competing financial interests.

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“…Some factors that affect the effectiveness of phytoremediation are the plant root depth, level of contamination, the age of plant, the contaminant concentration and climatic condition (Tangahu et al 2011). Metal reservoirs can exist in aquatic environments (Ndimele et al 2009). Certain plants are known to be able to accumulate relatively large amounts of pollutants like heavy metals (Ravera et al 2003).…”

Section: Phytoremediationmentioning

confidence: 99%

Co-contamination of water with chlorinated hydrocarbons and heavy metals: challenges and current bioremediation strategies

Arjoon

Olaniran

Pillay

2012

Int. J. Environ. Sci. Technol.

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Chlorinated hydrocarbons can cause serious environmental and human health problems as a result of their bioaccumulation, persistence and toxicity. Improper disposal practices or accidental spills of these compounds have made them common contaminants of soil and groundwater. Bioremediation is a promising technology for remediation of sites contaminated with chlorinated hydrocarbons. However, sites co-contaminated with heavy metal pollutants can be a problem since heavy metals can adversely affect potentially important biodegradation processes of the microorganisms. These effects include extended acclimation periods, reduced biodegradation rates, and failure of target compound biodegradation. Remediation of sites co-contaminated with chlorinated organic compounds and toxic metals is challenging, as the two components often must be treated differently. Recent approaches to increasing biodegradation of organic compounds in the presence of heavy metals include the use of dual bioaugmentation; involving the utilization of heavy metal-resistant bacteria in conjunction with an organicdegrading bacterium. The use of zero-valent irons as a novel reductant, cyclodextrin as a complexing agent, renewable agricultural biosorbents as adsorbents, biosurfactants that act as chelators of the co-contaminants and phytoremediation approaches that utilize plants for the remediation of organic and inorganic compounds have also been reported. This review provides an overview of the problems associated with co-contamination of sites with chlorinated organics and heavy metals, the current strategies being employed to remediate such sites and the challenges involved.

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The levels of lead (Pb) in water, sediment and a commercially important fish species (<i>Chrysichthys nigrodigitatus</i>) (Lacepède 1803) from Ologe Lagoon, Lagos, Nigeria

Cited by 3 publications

References 0 publications

Heavy Metal Analysis in Silver Catfish (Chrysichthys nigrodigitatus) from Asejire and Erinle Reservoirs in Southwest Nigeria

Heavy Metal Analysis in Silver Catfish (Chrysichthys nigrodigitatus) from Asejire and Erinle Reservoirs in Southwest Nigeria

Material and Substance Flow Analysis of Used Lead Acid Batteries in Nigeria: Implications for Recovery and Environmental Quality

Co-contamination of water with chlorinated hydrocarbons and heavy metals: challenges and current bioremediation strategies

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