Babayemi Joshua Olajiire

@unimed.edu.ng

Associate Professor, Environmental Management and Toxicology, Department of Biosciences and Biotechnology
University of Medical Sciences, Ondo

Babayemi Joshua Olajiire


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Joshua Babayemi is an Associate Prof, Environmental Chemist, Environmental Data Scientist, and currently the Acting Head of Department of Biosciences and Biotechnology, University of Medical Sciences Ondo . He obtained B.Sc. degree in Environmental Management and Toxicology from the Federal University of Agriculture Abeokuta, and an MSc Environmental Chemistry and Pollution Control, University of Ibadan. He obtained his Ph.D. degree in Environmental Chemistry at the University of Ibadan.

Dr. Babayemi is a member of Science Association of Nigeria, and a research associate of Basel Convention Coordinating Centre for Africa.

EDUCATION

University of Ibadan 2009-2015 Ph.D. (Environmental Chemistry) 2015
University of Ibadan 2006-2008 M.Sc. Environmental Chemistry and Pollution Control 2008
Federal University of Agriculture, Abeokuta 1999-2005 B.Sc. Environmental Management and Toxicology 2005
Baptist High School, Okeho 1989-1994 Senior Secondary School Certificate 1995
Araromi Baptist Primary School, Okeho 1982-1988 Primary School Leaving Certificate 1988

RESEARCH INTERESTS

Environmental Chemistry; environmental data science, inventory of wastes; material flow analysis of wastes; waste management; persistent organic pollutants; heavy metals in the environment; plastics
27

Scopus Publications

2291

Scholar Citations

26

Scholar h-index

36

Scholar i10-index

Scopus Publications

  • Comprehensive inventory of imports of electrical and electronic equipment and related plastics and POPs plastic additives into Nigeria in the past 32 years (1990–2022)
    Joshua O. Babayemi, Innocent C. Nnorom, Roland Weber
    Emerging Contaminants, 2025
  • Initial assessment of imports of chlorinated paraffins into Nigeria and the need of improvement of the Stockholm and Rotterdam Conventions
    Joshua O. Babayemi, Innocent C. Nnorom, Roland Weber
    Emerging Contaminants, 2022
  • Inventory approach for short-chain chlorinated paraffins for the Stockholm Convention implementation in Brazil
    Yago Guida, Raquel Capella, Natsuko Kajiwara, Joshua Olajiire Babayemi, João Paulo Machado Torres, et al.
    Chemosphere, 2022
  • Material and substance flow analysis of used lead acid batteries in Nigeria: Implications for recovery and environmental quality
    Damilola Ogundele, Mary B. Ogundiran, Joshua O. Babayemi, Manis K. Jha
    Journal of Health and Pollution, 2020
    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.
  • Concentration and distribution of organochlorine pesticides in sediments of the Niger River, Nigeria
    John P. Unyimadu, Oladele Osibanjo, Joshua O. Babayemi
    Journal of Health and Pollution, 2020
    Background. Pollution in aquatic ecosystems is a serious environmental concern. There is a great need for constant assessment and monitoring of hazardous substances, particularly in aquatic environments in developing countries, as rivers are media with easy trans-boundary transport of chemical substances. Objectives. The present study assessed the occurrence and distribution of organochlorine pesticides (OCPs) in the sediments of the Niger River, Nigeria. Methods. A total of 120 samples of sediment were collected from 15 locations along the river using Van Veen grab. The Environmental Protection Agency (USEPA) 3570 method with slight modification was used for sample preparation. Organochlorine pesticides were analyzed using Hewlett Packard 5890 series II gas chromatography with electron capture detector. Confirmation of OCPs was performed using a gas chromatograph/mass spectrometer (Shimadzu QP2010) and capillary column type HP1MS (30 m × 0.25 um × 0.25 mm id). Results. The highest concentration of ∑OCPs in the sediment samples of the River Niger (5023±1596 μg/kg, 4672–7009 μg/kg) was detected in a location at Onitsha, while the lowest concentration (1570±204.5, 1214–1820 μg/kg) was detected in a location at the Nicolas River. Discussion. High values of ∑OCPs (>2000 μg/kg) were detected in all of the locations except in three locations where lower levels were detected. The ∑OCPs were higher during the dry season compared to the rainy season. This may be because the resident time of the sediment transported was higher during the dry season compared to the rainy season, which is characterized by storms, high current, and bottom scour. The chlordane concentration ranged between 24.4 and 134.1 μg/kg dry weight (dw) in locations Nicolas 14 and Lokoja 5; and the Probable Effect Concentration guidelines were exceeded. Dieldrin was detected at very low levels in most of the locations and ranged from 5.67 to 70.3 μg/kg dw in locations Onitsha 9 and 8; and the Probable Effect Concentration guideline was only exceeded in location Onitsha 8; however, the Toxic Effect Concentration guideline was exceeded at all of the locations. Dichlorodiphenyldichloroethane (DDD) was not detected in location Lokoja 6 or 7, and Onitsha 8 and 9, although the concentration in all other locations exceeded the guidelines. Dichlorodiphenyldichloroethylene (DDE) concentrations exceeded the guidelines except in location Nicolas 13. Conclusions. Due to the environmental/human risk and potential danger of the elevated levels of OCPs, there is a need for continuous monitoring of the Niger River. Competing Interests. The authors declare no competing financial interests.
  • Ensuring sustainability in plastics use in Africa: consumption, waste generation, and projections
    Joshua O. Babayemi, Innocent C. Nnorom, Oladele Osibanjo, Roland Weber
    Environmental Sciences Europe, 2019
    Background Currently, plastic is at the top of the international agenda for waste management. Recent meetings of the Conferences of the Parties to the Basel and the Stockholm Conventions have expressed concerns over the impact of plastic waste, marine plastic litter, and microplastics, and emphasised the importance of reducing consumption and ensuring the environmentally sound management of waste plastics. This study presents the first continental historical analysis of mass importation and consumption of different polymers and plastics (primary and secondary forms, respectively) in Africa and the associated pollution potential. We identified, collated and synthesised dispersed international trade data on the importation of polymers and plastics into several African countries. Results The 33 African countries (total population of 856,671,366) with available data for more than 10 years imported approximately 86.14 Mt of polymers in primary form and 31.5 Mt of plastic products between 1990 and 2017. Extrapolating to the continental level (African population of 1.216 billion in 54 countries), about 172 Mt of polymers and plastics valued at $285 billion were imported between 1990 and 2017. Considering also the components of products, an estimated 230 Mt of plastics entered Africa during that time period, with the largest share going to Egypt (43 Mt, 18.7%), Nigeria (39 Mt, 17.0%), South Africa (27 Mt, 11.7%), Algeria (26 Mt, 11.3%), Morocco (22 Mt, 9.6%), and Tunisia (16 Mt, 7.0%). Additionally, primary plastic production in 8 African countries contributed 15 Mt during 2009–2015. The assessment showed that environmentally sound end-of-life management of waste plastics by recycling and energy recovery is in its infancy in Africa, but recycling activities and thermal recovery have started in a few countries. Conclusions Globally, the perception is that production and consumption of plastics can only increase in the future. Solutions are needed to tackle this global challenge. Certain policies and plastic bag bans could help reduce plastic consumption in the near future, as demonstrated by Rwanda. Furthermore, there is a need for innovative solutions such as the introduction of biodegradable polymers and other alternatives, especially for packaging.
  • Inventory and substance flow analysis of polybrominated diphenyl ethers in the Nigerian transport sector—end-of-life vehicles policy and management
    J. O. Babayemi, O. Osibanjo, O. Sindiku, R. Weber
    Environmental Science and Pollution Research, 2018
    Recently, certain polybrominated diphenyl ethers (PBDEs) have been listed as persistent organic pollutants (POPs) in the Stockholm Convention. In this study, a preliminary material and substance flow analysis of commercial pentabromodiphenyl ether (c-PentaBDE) was conducted for motor vehicles—a major use sector for POP-PBDE in polyurethane (PUR) foam—for Nigeria. The methodology of the Stockholm Convention PBDE inventory guidance was used for the calculation of c-PentaBDE. Material/substance flow analysis was conducted applying the STAN software. The time frame for this analysis was 1980–2010, considering that this was the period when POP-PBDE-containing vehicles were largely imported into Nigeria.It is estimated that the approximately 19 million passenger cars imported from 1980 to 2010 contained ca. 270 t of POP-PBDEs in ca. 401,000 t of PUR foam. A major share of cars from the USA and only a small share of cars from Europe and Asia were impacted. This simplified material and substance flow of PUR foams and POP-PBDEs in motor vehicles demonstrated the potential for environmental/human contamination and pollution of recycling/reuse for Nigeria and other developing countries.The study developed the first preliminary inventory of end-of-life vehicles for Nigeria, following which the environment ministry has taken up the important issue of end-of-life vehicles management. Considering that a range of other pollutants are contained in vehicles (e.g. heavy metals, flame retardants, PCBs, chlorofluorocarbons, hydrofluorocarbons and waste oil), this initiated activity should finally lead to an integrated management of pollutants and resources from the transport sector.
  • Initial inventory of plastics imports in Nigeria as a basis for more sustainable management policies
    Joshua O. Babayemi, Mary B. Ogundiran, Roland Weber, Oladele Osibanjo
    Journal of Health and Pollution, 2018
    Background. Plastic is a waste stream with recycling and recovery potential. However, the recycling rates for plastic in African countries are low. Furthermore, use and production of virgin plastics are increasing. Therefore, a high proportion of plastic waste is being disposed of in landfills and dumpsites. Plastic serves as fuel for open burning at landfills/dumpsites with associated releases and constitutes a large fraction of marine litter, making it a major and growing global pollution concern. Objectives. This study aims to develop an initial inventory of plastics in Nigeria towards the development of an effective plastics management frame. Methods. A search was conducted of the recent literature and the United Nations (UN) Comtrade database using harmonized system (HS) codes for import data of various polymer categories and major product categories containing plastic. Algebraic expressions were developed for calculation of the share of plastic in these products. Results. Approximately 14,200,000 tons of plastics in primary form were imported into Nigeria between 1996–2014. Approximately 3,420,000 tons total plastic were imported in the form of products and approximately 5,545,700 tons were imported as product components. Approximately 194,000 tons of plastic toys were imported over a six-year period. Discussion. The total amount of plastics imported in primary form and as products equals 17,620,000 tons. The total volume of imported plastic, newly produced plastic and plastic components going into the technosphere was 23,400,000 tons. The huge amount of plastic and other polymers entering the technosphere in Nigeria has important implications for marine litter, pollution, waste management and resource recovery. Conclusions. A huge volume of plastics has entered the Nigerian technosphere, with less than 12% of the resulting waste entering the recycling stream. There is a need for sustainable management of this crucial waste and resource category. Potential mitigating strategies include waste plastic reuse, recycling, waste conversion to energy, and appropriate plastic control policy frameworks. Competing Interests. The authors declare no competing financial interests.
  • Polychlorinated biphenyls in brackish water fish in the River Niger, Nigeria
    John P. Unyimadu, Oladele Osibanjo, Joshua O. Babayemi
    Journal of Health and Pollution, 2018
    Background. Anthropogenic polychlorinated biphenyls (PCBs) in aquatic environments poses human and ecological health risks in Nigeria. Objectives . This study determined the concentrations of PCBs in brackish water fish in the River Niger to assess the contamination status of fish consumed by the local population. Methods . The sampled fish species included Drepane africana, Mochokus niloticus, Chrysichthys nigrodigitatus, Pristipoma jubelini, Vomer septapinis, Pseudotolithus senegalensis, Mugil cephalus, Pseudotolithus elongatus, Sphyraena piscatorum and Lutjanus goreensis, purchased from landing sites. Six fish from each species were sampled, for a total of 60 samples. Twenty-seven (27) PCB congeners, #8, #18 #28, #44, #52, #60, #77, #81, #101, #105, #114, #118, #123, #126, #128, #138, #153, #156, #157, #167, #169, #170, #180, #185, #189, #195, and #206 were screened in the fish samples using standard methods. The PCBs were identified and quantified using gas chromatography (GC) (Hewlett Packard GC 5890 series 11 with electron capture detector). Confirmation was performed using Shimadzu GCMS QP2010. Results. The sum of the National Oceanic and Atmospheric Administration Agency (ΣNOAA) PCBs occurred at the highest concentration of 1830.0±484.0 μg/kg detected in Vomer septapinis, and the lowest in Pseudotolithus senegalensis, with a mean concentration of 795±169.3 μg/kg. The concentration of dioxin-like (DL) PCBs was highest in Pristipoma jubelini (992.0±88.6 μg/kg) and lowest (285.6±81.5 μg/kg) in Drepane africana. The highest mean concentration (418.±177.6 μg/kg) of International Council for the Exploration of the Seas-7 (ICES-7) PCBs was observed in Vomer septapinis. The heavier ICES-7 congeners PCB-138, PCB-153, and PCB-180 occurred at higher concentrations compared to the lighter molecular weight ICES-7: PCB-28, PCB-52, and PCB-101. The European Union (EU) marker PCB limit of 335 μg/kg was exceeded in all the brackish water fishes with the exception of Mochokus niloticus, Pristipoma jubelini and Pseudotolithus senegalensis. Discussion . The total level of PCBs in the brackish fish samples was relatively high at >1000 μg/kg (above the World Health Organization (WHO) and Food and Agriculture Organization of the United Nations (FAO) guideline of 1000 μg/kg fresh weight). The EU guideline value for fish (220 μg/kg fresh weight) was exceeded in about 80% of the brackish fish samples studied. Conclusions. Consumption of fish from the River Niger may expose humans to polychlorinated biphenyls. In addition, since contamination of the fish samples is an indication of river contamination, river water quality is of great concern and there is a need for additional PCB data on water quality to be distributed to the community, followed by mitigation measures. Competing interests. The authors declare no competing financial interests.
  • Polychlorinated biphenyls (PCBs) in River Niger, Nigeria: Occurrence, distribution and composition profiles
    JP Unyimadu, O Osibanjo, JO Babayemi
    Toxicology and Industrial Health, 2018
    Contamination of rivers with persistent organic pollutants (POPs) is an issue of current global concern. Polychlorinated biphenyls (PCBs) are POPs with origin from commercial, incineration and industrial sources. Hence, there is a need for monitoring their occurrence and distribution in the environment. This study assessed the occurrence, distribution and composition profiles of PCBs in River Niger, Nigeria. Surface and bottom water samples were collected in consecutive quarters for a period of 2 years, covering the beginning and end of the rainy seasons and the dry seasons, from five locations (Gurara, Lokoja, Onitsha, Brass and Nicolas) along River Niger. A total of 240 water samples were collected using a Van Dorn water sampler. EPA method 3510c was used with slight modifications for sample preparation and analysis. The PCBs were analysed using a Hewlett Packard GC 5890 Series 11 with electron capture detection, and confirmation was made using a Shimadzu GCMS QP2010. The higher molecular weight marker PCBs (∑CB 138, 153 and 180) were more dominant than the lighter homologues (∑CB 28, 52 and 101), while commercial sources Co-PCBs (80.8 ± 61.7 to 288.3 ± 102.0 ng L−1) were more dominant than the incineration sources (34.9 ± 3.82 to 75.5 ± 65.2 ng L−1). The POPs load in River Niger water varied in both time and space. In surface water of the River Niger, ∑PCBs were higher during the rainy season, as a result of storm run-off from land-based sources. In the Brass and Nicolas Rivers during the dry season, the ∑PCBs were higher during low tide. There was no noticeable pattern during the rainy season. It may be concluded from this study that the water of River Niger is not good for human consumption or abstraction of water from the river for drinking water treatment.
  • Levels of organochlorine pesticides in brackish water fish from Niger river, Nigeria
    John P. Unyimadu, O. Osibanjo, Joshua O. Babayemi
    Journal of Environmental and Public Health, 2018
  • Selected persistent organic pollutants (POPs) in water of River Niger: occurrence and distribution
    J. P. Unyimadu, O. Osibanjo, J. O Babayemi
    Environmental Monitoring and Assessment, 2018
  • Material and substance flow analysis of mobile phones in Nigeria: a step for progressing e-waste management strategy
    J. O. Babayemi, O. Osibanjo, R. Weber
    Journal of Material Cycles and Waste Management, 2017
  • Current Levels and Management of Solid Wastes in Nigeria
    Joshua O. Babayemi, Mary B. Ogundiran, Oladele Osibanjo
    Environmental Quality Management, 2017
  • Waste rechargeable electric lamps: characterisation and recovery of lead from their lead-acid batteries
    Mary B. Ogundiran, Tordue G. Buluku, Joshua O. Babayemi, Oladele Osibanjo
    Journal of Material Cycles and Waste Management, 2017
  • Overview of Environmental Hazards and Health Effects of Pollution in Developing Countries: A Case Study of Nigeria
    Joshua O. Babayemi, Mary B. Ogundiran, Oladele Osibanjo
    Environmental Quality Management, 2016
  • Substance flow analysis of polybrominated diphenyl ethers in plastic from EEE/WEEE in Nigeria in the frame of Stockholm Convention as a basis for policy advice
    Joshua Babayemi, Omotayo Sindiku, Oladele Osibanjo, Roland Weber
    Environmental Science and Pollution Research, 2015
  • Polybrominated diphenyl ethers listed as Stockholm Convention POPs, other brominated flame retardants and heavy metals in e-waste polymers in Nigeria
    Omotayo Sindiku, Joshua Babayemi, Oladele Osibanjo, Martin Schlummer, Mathias Schluep, et al.
    Environmental Science and Pollution Research, 2015
  • Polybrominated dibenzo-p-dioxins and dibenzofurans (PBDD/Fs) in e-waste plastic in Nigeria
    O. Sindiku, J. O. Babayemi, M. Tysklind, O. Osibanjo, R. Weber, et al.
    Environmental Science and Pollution Research, 2015
  • Assessment of use, reuse, and end-of-life disposal and x-ray fluorescence analysis screening of waste mobile phones in Nigeria
    Joshua O. Babayemi, Oladele Osibanjo, Roland Weber
    Environmental Quality Management, 2014
  • Potential environmental hazards of non-rechargeable electric torch wastes in Nigeria
    Mary B. Ogundiran, Oluwaseun A. Oyetade, Joshua O. Babayemi, Oladele Osibanjo
    International Journal of Environment and Waste Management, 2014
  • The ancient alkali production technology and the modern improvement: A review
    J.O. Babayemi, G.O. Adewuyi, K.T. Dauda, A.A.A. Kayode
    Asian Journal of Applied Sciences, 2011
  • Determination of metal content and an assessment of the potential use of waste cashew nut ash (CNSA) as a source for potash production
    Bioresources, 2011
  • Blood heavy metal levels in cows at slaughter at Awka Abattoir, Nigeria
    D.O. Nwude, P.A.C. Okoye, J.O. Babayemi
    International Journal of Dairy Science, 2010
  • Heavy metal levels in animal muscle tissue: A Case study of Nigerian raised cattle
    D.O. Nwude, P.A.C. Okoye, J.O. Babayemi
    Research Journal of Applied Sciences, 2010

RECENT SCHOLAR PUBLICATIONS

  • Motor Vehicle Tyres as a Significant Source of Persistent Organic Pollutants Emission in Nigeria
    JO Babayemi, IC Nnorom, R Weber
    2026
  • Plastic Waste management: Knowledge, Attitude and Perception of Students at a Tertiary Medical Institution, Ondo State, Nigeria.
    PV Oyinlola, JO Babayemi, P Ayeku
    Journal of Applied Sciences & Environmental Management 29 (6) , 2025
    2025
    Citations: 1
  • Comprehensive inventory of imports of electrical and electronic equipment and related plastics and POPs plastic additives into Nigeria in the past 32 years (1990–2022)
    JO Babayemi, IC Nnorom, R Weber
    Emerging Contaminants 11 (1), 100423 , 2025
    2025
    Citations: 4
  • Imports of Electrical Electronic Equipment and Related Plastics, PBDEs and Other POPs Plastic Additives into Nigeria in the Past 32 Years (1990-2022)
    J Babayemi, IC Nnorom, R Weber
    PBDEs and Other POPs Plastic Additives into Nigeria in the Past 32, 1990-2022 , 2024
    2024
    Citations: 1
  • Initial assessment of imports of chlorinated paraffins into Nigeria and the need of improvement of the Stockholm and Rotterdam Conventions
    JO Babayemi, IC Nnorom, R Weber
    Emerging Contaminants 8, 360-370 , 2022
    2022
    Citations: 19
  • Inventory approach for short-chain chlorinated paraffins for the Stockholm Convention implementation in Brazil
    Y Guida, R Capella, N Kajiwara, JO Babayemi, JPM Torres, R Weber
    Chemosphere 287, 132344 , 2022
    2022
    Citations: 42
  • Bio-adsorption of Heavy Metal Ions from Aqueous Solution Using Uziza (Piper guineense) Stem: Characterization, Equilibrium and Thermodynamic Studies
    CE Chigbundu, JO Babayemi, CP Egbanu
    Singapore Journal of Scientific Research 10 (3), 282-292 , 2020
    2020
    Citations: 6
  • Material and Substance Flow Analysis of Used Lead Acid Batteries in Nigeria: Implications for Recovery and Environmental Quality
    D Ogundele, MB Ogundiran, JO Babayemi, MK Jha
    Journal of Health & Pollution 10 (27), 1-12 , 2020
    2020
    Citations: 13
  • Heavy Metals Level in Clarias gariepinus (Catfish), Oreochromis niloticus (Tilapia) and Chrysichthys nigroditatus (Bagrid catfish) collected from Ogun River, Ogun State, Nigeria
    DO NWUDE, JO BABAYEMI, CP AJIBODE
    Journal of Applied Sciences and Environmental Management 24 (8), 1433-1440 , 2020
    2020
    Citations: 10
  • Levels of Heavy Metals in Commonly Consumed Vegetables Obtained from Some Markets in Ota, Nigeria
    RM Azeez, JO Babayemi
    Anchor University Journal of Science and Technology 1 (1), 96-101 , 2020
    2020
    Citations: 2
  • Science-based solutions to plastic pollution
    S Krause
    One Earth , 2020
    2020
    Citations: 36
  • Ensuring sustainability in plastics use in Africa: consumption, waste generation, and projections
    JO Babayemi, IC Nnorom, O Osibanjo, R Weber
    Environmental Sciences Europe 31 (60) , 2019
    2019
    Citations: 341
  • Concentration and distribution of organochlorine pesticides in sediments of the Niger River, Nigeria
    JP Unyimadu, O Osibanjo, JO Babayemi
    Journal of Health & Pollution 9 (22), 190606 , 2019
    2019
    Citations: 34
  • Inventory and substance flow analysis of polybrominated diphenyl ethers in the Nigerian transport sector—end-of-life vehicles policy and management
    JO Babayemi, O Osibanjo, O Sindiku, R Weber
    Environmental Science and Pollution Research 25 (32), 31805-31818 , 2018
    2018
    Citations: 36
  • Initial inventory of plastics imports in Nigeria as a basis for more sustainable management policies
    JO Babayemi, MB Ogundiran, R Weber, O Osibanjo
    Journal of Health & Pollution 8 (18), 180601 , 2018
    2018
    Citations: 86
  • Polychlorinated biphenyls in brackish water fish in the River Niger, Nigeria
    JP Unyimadu, O Osibanjo, JO Babayemi
    Journal of Health & Pollution 8 (17), 31 , 2018
    2018
    Citations: 25
  • Levels of organochlorine pesticides in brackish water fish from Niger River, Nigeria
    JP Unyimadu, O Osibanjo, JO Babayemi
    Journal of environmental and public health 2018 (1), 2658306 , 2018
    2018
    Citations: 33
  • Selected persistent organic pollutants (POPs) in water of River Niger: occurrence and distribution
    JP Unyimadu, O Osibanjo, JO Babayemi
    Environmental monitoring and assessment 190 (1), 6 , 2018
    2018
    Citations: 62
  • Polychlorinated biphenyls (PCBs) in River Niger, Nigeria: occurrence, distribution and composition profiles
    JP Unyimadu, O Osibanjo, JO Babayemi
    Toxicology and Industrial Health 34 (1), 54-67 , 2018
    2018
    Citations: 36
  • Material and substance flow analysis of mobile phones in Nigeria: a step for progressing e-waste management strategy
    JO Babayemi, O Osibanjo, R Weber
    Journal of Material Cycles and Waste Management 19 (2), 731-742 , 2017
    2017
    Citations: 42

MOST CITED SCHOLAR PUBLICATIONS

  • Evaluation of solid waste generation, categories and disposal options in developing countries: a case study of Nigeria
    JO Babayemi, KT Dauda
    World Bank assisted National Agricultural Research Project (NARP)-University … , 2010
    2010
    Citations: 504
  • Ensuring sustainability in plastics use in Africa: consumption, waste generation, and projections
    JO Babayemi, IC Nnorom, O Osibanjo, R Weber
    Environmental Sciences Europe 31 (60) , 2019
    2019
    Citations: 341
  • Polybrominated diphenyl ethers listed as Stockholm Convention POPs, other brominated flame retardants and heavy metals in e-waste polymers in Nigeria
    O Sindiku, J Babayemi, O Osibanjo, M Schlummer, M Schluep, A Watson, ...
    Environmental Science and Pollution Research 22 (19), 14489-14501 , 2015
    2015
    Citations: 127
  • Overview of Environmental Hazards and Health Effects of Pollution in Developing Countries: A Case Study of Nigeria
    JO Babayemi, MB Ogundiran, O Osibanjo
    Environmental Quality Management 26 (1), 51-71 , 2016
    2016
    Citations: 93
  • Initial inventory of plastics imports in Nigeria as a basis for more sustainable management policies
    JO Babayemi, MB Ogundiran, R Weber, O Osibanjo
    Journal of Health & Pollution 8 (18), 180601 , 2018
    2018
    Citations: 86
  • Polybrominated dibenzo- p -dioxins and dibenzofurans (PBDD/Fs) in e-waste plastic in Nigeria
    O Sindiku, JO Babayemi, M Tysklind, O Osibanjo, R Weber, A Watson, ...
    Environmental Science and Pollution Research 22 (19), 14515-14529 , 2015
    2015
    Citations: 66
  • Evaluation of the composition and chemistry of Ash and
    JO Babayemi, KT Dauda, DO Nwude, AAA Kayode
    Journal of Applied Sciences 10 (16), 1820-1824 , 2010
    2010
    Citations: 63
  • Selected persistent organic pollutants (POPs) in water of River Niger: occurrence and distribution
    JP Unyimadu, O Osibanjo, JO Babayemi
    Environmental monitoring and assessment 190 (1), 6 , 2018
    2018
    Citations: 62
  • Substance flow analysis of polybrominated diphenyl ethers in plastic from EEE/WEEE in Nigeria in the frame of Stockholm Convention as a basis for policy advice
    J Babayemi, O Sindiku, O Osibanjo, R Weber
    Environmental Science and Pollution Research 22 (19), 14502-14514 , 2015
    2015
    Citations: 62
  • Heavy metal levels in animal muscle tissue: a case study of Nigerian raised cattle
    JO Babayemi
    Research Journal of Applied Sciences , 2010
    2010
    Citations: 58
  • Determination of potash alkali and metal contents of ashes obtained from peels of some varieties of Nigeria grown Musa species.
    JO Babayemi, KT Dauda, AAA Kayode, DO Nwude, JA Ajiboye, ...
    BioResources 5 (3) , 2010
    2010
    Citations: 54
  • Evaluation of ten different African wood species for potash production
    GO Adewuyi, NO Obi-Egbedi, JO Babayemi
    International Journal of Physical Science 3 (3), 63-68 , 2008
    2008
    Citations: 46
  • Inventory approach for short-chain chlorinated paraffins for the Stockholm Convention implementation in Brazil
    Y Guida, R Capella, N Kajiwara, JO Babayemi, JPM Torres, R Weber
    Chemosphere 287, 132344 , 2022
    2022
    Citations: 42
  • Material and substance flow analysis of mobile phones in Nigeria: a step for progressing e-waste management strategy
    JO Babayemi, O Osibanjo, R Weber
    Journal of Material Cycles and Waste Management 19 (2), 731-742 , 2017
    2017
    Citations: 42
  • Science-based solutions to plastic pollution
    S Krause
    One Earth , 2020
    2020
    Citations: 36
  • Inventory and substance flow analysis of polybrominated diphenyl ethers in the Nigerian transport sector—end-of-life vehicles policy and management
    JO Babayemi, O Osibanjo, O Sindiku, R Weber
    Environmental Science and Pollution Research 25 (32), 31805-31818 , 2018
    2018
    Citations: 36
  • Polychlorinated biphenyls (PCBs) in River Niger, Nigeria: occurrence, distribution and composition profiles
    JP Unyimadu, O Osibanjo, JO Babayemi
    Toxicology and Industrial Health 34 (1), 54-67 , 2018
    2018
    Citations: 36
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