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Ezeh CC, Onyema VO, Obi CJ, Moneke AN. A systematic review of the impacts of oil spillage on residents of oil-producing communities in Nigeria. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:34761-34786. [PMID: 38714616 DOI: 10.1007/s11356-024-33468-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/14/2023] [Accepted: 04/21/2024] [Indexed: 05/10/2024]
Abstract
Oil spillage is common in oil-producing communities of Nigeria, and it impacts negatively on the residents of these communities. This study analysed available research data on oil spillage incidents in these communities to determine their main causes and impacts on the residents. This study highlights the immediate and long-term consequences of oil spills on residents of oil-host communities in Nigeria. A systematic review of published studies was carried out, and 22 studies were identified from the literature search. The main causes of oil spills were identified as sabotage (87%), leakage from corroded pipelines (62%), and equipment failure (45%). Others were mystery spills and operational failures. Unemployment, abject poverty, marginalization, and inaction of government regulatory agencies are enabling factors for sabotage and vandalism of oil pipelines. It was found that exposure to oil spills impacts directly and indirectly on residents of oil-host communities, with accompanying health, socioeconomic, and environmental implications. Oil spills in these communities impact on all facets of their life, thereby infringing on their rights to existence and survival. The major interventions were targeted at improving health services, education, infrastructure, skill acquisition, and employment. These in turn reduced the occurrence of violence, insurgency, and human trafficking in the oil-producing communities. It is recommended that government regulatory agencies should be revamped and repositioned to effectively perform their duties. Interventions should be targeted at addressing the causes of agitation by indigenes by involving them in the decision-making process. Also, appropriate remediation strategies should be adopted to clean up the oil spills.
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Affiliation(s)
- Chukwuemeka C Ezeh
- Department of Microbiology, Faculty of Biological Science, University of Nigeria, Nsukka, Enugu State, Nigeria
- Centre for Environmental Management and Control, University of Nigeria, Nsukka, Enugu State, Nigeria
- Central Science Laboratory, University of Nigeria, Nsukka, Enugu State, Nigeria
| | - Vanessa O Onyema
- Department of Microbiology, Faculty of Biological Science, University of Nigeria, Nsukka, Enugu State, Nigeria
| | - Chinonye J Obi
- Centre for Environmental Management and Control, University of Nigeria, Nsukka, Enugu State, Nigeria
| | - Anene N Moneke
- Department of Microbiology, Faculty of Biological Science, University of Nigeria, Nsukka, Enugu State, Nigeria.
- Centre for Environmental Management and Control, University of Nigeria, Nsukka, Enugu State, Nigeria.
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Nwanze LD, Siuliman A, Ibrahim N. Factors associated with infant mortality in Nigeria: A scoping review. PLoS One 2023; 18:e0294434. [PMID: 37967113 PMCID: PMC10650982 DOI: 10.1371/journal.pone.0294434] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Accepted: 10/31/2023] [Indexed: 11/17/2023] Open
Abstract
BACKGROUND Infant mortality persists as a global public health concern, particularly in lower-middle-income countries (LIMCs) such as Nigeria. The risk of an infant dying before one year of age is estimated to be six times higher in Africa than in Europe. Nigeria recorded an infant mortality rate of 72.2 deaths per 1,000 live births in 2020, in contrast to the global estimate of 27.4 per 1,000 live births. Several studies have been undertaken to determine the factors influencing infant mortality. OBJECTIVE This scoping review sought to identify and summarise the breadth of evidence available on factors associated with infant mortality in Nigeria. METHODS This review followed the five-stage principles of Arksey and O'Malley's framework. Four electronic databases were searched with no limit to publication date or study type: Ovid MEDLINE, PubMed, CINAHL Complete, and Web of Science. Selected studies were imported into Endnote software and then exported to Rayyan software where duplicates were removed. Included articles were thematically analysed and synthesised using the socioecological model. RESULTS A total of 8,139 references were compiled and screened. Forty-eight articles were included in the final review. At the individual level, maternal- and child-related factors were revealed to influence infant mortality; socioeconomic and sociocultural factors at the interpersonal level; provision and utilisation of health services, health workforce, hospital resources and access to health services at the organisational level; housing/neighbourhood and environmental factors at the community level; and lastly, governmental factors were found to affect infant mortality at the public policy level. CONCLUSION Factors related to the individual, interpersonal, organisational, community and public policy levels were associated with infant mortality in Nigeria.
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Affiliation(s)
- Loveth Dumebi Nwanze
- Department of Public Health, School of Medicine, Faculty of Education and Health Sciences, University of Limerick, Limerick, Ireland
| | - Alaa Siuliman
- Department of Public Health, School of Medicine, Faculty of Education and Health Sciences, University of Limerick, Limerick, Ireland
| | - Nuha Ibrahim
- Department of Public Health, School of Medicine, Faculty of Education and Health Sciences, University of Limerick, Limerick, Ireland
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Reamer MB. Communicating ocean and human health connections: An agenda for research and practice. Front Public Health 2022; 10:1033905. [PMID: 36530715 PMCID: PMC9755358 DOI: 10.3389/fpubh.2022.1033905] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2022] [Accepted: 11/16/2022] [Indexed: 12/05/2022] Open
Abstract
The emergence of ocean and human health (OHH) science as a distinct scholarly discipline has led to increased research outputs from experts in both the natural and social sciences. Formal research on communication strategies, messaging, and campaigns related to OHH science remains limited despite its importance as part of the social processes that can make knowledge actionable. When utilized to communicate visible, local issues for targeting audiences, OHH themes hold the potential to motivate action in pursuit of solutions to environmental challenges, supplementing efforts to address large-scale, abstract, or politicized issues such as ocean acidification or climate change. Probing peer-reviewed literature from relevant areas of study, this review article outlines and reveals associations between society and the quality of coastal and marine ecosystems, as well as key themes, concepts, and findings in OHH science and environmental communication. Recommendations for future work concerning effective ocean and human health science communication are provided, creating a platform for innovative scholarship, evidence-based practice, and novel collaboration across disciplines.
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Ma Y, Choi CY, Thomas A, Gibson L. Review of contaminant levels and effects in shorebirds: Knowledge gaps and conservation priorities. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2022; 242:113868. [PMID: 35863215 DOI: 10.1016/j.ecoenv.2022.113868] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/12/2022] [Revised: 06/20/2022] [Accepted: 07/05/2022] [Indexed: 06/15/2023]
Abstract
Environmental pollution has emerged as a major threat to bird populations. Many shorebird populations are declining, although contamination has been documented in some shorebirds, evidence of negative impacts is sparse and this important topic remains understudied. To guide future research and develop effective conservation strategies, we carried out a comprehensive review of environmental pollutants and their consequences on shorebirds. In total, we found 93 relevant articles which examined pollutant contamination in ~37% (79 of 215) of all shorebird species, mostly from the Charadriidae and Scolopacidae families. Studies were geographically biased: the majority were conducted in American flyways, while only 1 was found from Australasia and few were conducted in Asian flyways. The main geographic gap for research includes East Africa, South Asia and Siberian Arctic. The most well-documented pollutants included mercury (Hg, 37 studies), cadmium (33), and lead (Pb, 28); less well studied pollutants were barium (1), calcium (1), strontium (1), dicofols (1), and other newly emerging contaminants, such as plastic debris/microplastics (4) and antibiotics resistance (2). Several pollutants have caused considerable concerns in shorebirds, including embryotoxicity caused by PCBs at non-optimum temperature (laboratory experiments); reduced reproduction performance linked to maternal Hg and paternal Pb (field evidence); and reduced refueling and flight performance related to oil contamination (both field and laboratory evidence). Our results confirm that an in-depth understanding of the local, regional and global factors that influence population trends of shorebirds in light of increasing pollution threats is essential for accurate and effective management and conservation strategies.
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Affiliation(s)
- Yanju Ma
- School of Environmental Science & Engineering, Southern University of Science and Technology, Shenzhen, Guangdong 518055, China
| | - Chi-Yeung Choi
- School of Environmental Science & Engineering, Southern University of Science and Technology, Shenzhen, Guangdong 518055, China
| | - Alex Thomas
- School of Environmental Science & Engineering, Southern University of Science and Technology, Shenzhen, Guangdong 518055, China
| | - Luke Gibson
- School of Environmental Science & Engineering, Southern University of Science and Technology, Shenzhen, Guangdong 518055, China.
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Arifin EN, Hoon CY, Slesman L, Tan A. Self-rated health and perceived environmental quality in Brunei Darussalam: a cross-sectional study. BMJ Open 2022; 12:e060799. [PMID: 35981772 PMCID: PMC9394210 DOI: 10.1136/bmjopen-2022-060799] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
Abstract
OBJECTIVES This paper examines the relationship between individuals' perceptions of environmental quality and self-rated health (SRH) after controlling for dimensions of socioeconomic, demographic and healthy lifestyle variables. DESIGN A cross-sectional survey. SETTING The survey was conducted in Belait, an oil-rich and gas-rich district in Brunei Darussalam, from 17 October to 11 November 2019 and focused on the most populated subdistricts (Kuala Belait, Seria and Liang), where 97% of the people reside. PARTICIPANTS A final sample of 1000 respondents aged 18 years and older were randomly selected from the population of the chosen subdistricts, with 95% CI and ±3 margin of error. Due to variable selection, only 673 respondents were available for analysis. OUTCOME MEASURES SRH was dichotomised into 1 for good health and 0 otherwise. Perceptions of environmental quality included perceptions of the natural environment (air quality, marine quality, water supply, noise and olfactory pollution) and the social environment (crime). χ2 and logistic regression models were used to assess the relationship between individuals' perceived environmental quality and SRH. RESULTS Most respondents perceived themselves with good SRH (72%). The adjusted logistic regression shows that perceptions of air quality (OR=2.20, 95% CI 1.15 to 4.22, p=0.018) and marine resources (OR=1.84, 95% CI 1.24 to 2.74, p=0.002) in their surrounding areas were significantly associated with good SRH. However, other environmental variables were insignificantly associated with SRH. Among the control variables, healthy lifestyle and employment had positive associations with good SRH (OR=3.89, 95% CI 1.96 to 7.71, p=0.000, for exercising 3-5 times a week; OR=1.72, 95% CI 1.09 to 2.71, p=0.021, for being employed). In addition, frequent physical exercise compensated for the negative health impact of environmental pollution. CONCLUSIONS This study suggests that environmental quality has an important role in SRH. However, a healthy lifestyle measured with frequency of physical exercise seems to compensate for the adverse environmental effects on SRH.
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Affiliation(s)
- Evi Nurvidya Arifin
- Centre for Advanced Research (CARe), Universiti Brunei Darussalam, Gadong, Brunei Darussalam
| | - Chang-Yau Hoon
- Centre for Advanced Research (CARe), Universiti Brunei Darussalam, Gadong, Brunei Darussalam
| | - Ly Slesman
- Centre for Advanced Research (CARe), Universiti Brunei Darussalam, Gadong, Brunei Darussalam
| | - Abby Tan
- Chancellery, Universiti Brunei Darussalam, Gadong, Brunei Darussalam
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Multitemporal Analysis as a Non-Invasive Technology Indicates a Rapid Change in Land Use in the Amazon: The Case of the ITT Oil Block. ENVIRONMENTS 2021. [DOI: 10.3390/environments8120139] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
The Amazon Region of Ecuador (ARE) hosts a great variety of biodiversity and ecosystems. These hotspots are internationally recognized for presenting unique fauna and flora found nowhere else in the world. Within the ARE, there is the Yasuní National Park (YNP), a recognized Biosphere Reserve located in the sub-basins of various rivers. The study area is the “ITT Oil Block” (Ishpingo, Tambococha, and Tiputini), situated in the Province of Orellana and superimposed on the YNP. The block has an area of 179,449.53 ha. The main objective of the current study was to analyze the multi-temporality of land-use change in the ITT Oil Block of the ARE. In the methodological process, the PCI Geomatic and ARCGIS programs were used for the processing and classification of satellite images (Landsat 7 and 8). The changes in land use in the ITT Oil Block over the three periods (2001, 2014, and 2017) indicated that forest cover decreased by 24.23% in soils, while infrastructure and cultivation increased throughout the time period by 0.27% and 0.23%, respectively. The most significant land-use change rate in the ITT Oil Block in the period 2001–2017 are the categories of bare soil with 9.01% (10,640.82 ha) and cultivation with 7.27% (591.29 ha).
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Ukhurebor KE, Athar H, Adetunji CO, Aigbe UO, Onyancha RB, Abifarin O. Environmental implications of petroleum spillages in the Niger Delta region of Nigeria: A review. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2021; 293:112872. [PMID: 34044235 DOI: 10.1016/j.jenvman.2021.112872] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/01/2020] [Revised: 05/16/2021] [Accepted: 05/21/2021] [Indexed: 06/12/2023]
Abstract
The issue of environmental pollution has been recognized as a typical example of an anthropogenic activity that constitutes a global challenge coupled with the influence of climate change. This has constituted several hazards which include bioaccumulation of toxic substances, pollution of the aquatic environment, and high rate of dilapidation of soil structure and texture, health hazards, high level of imbalance in the ecosystem and a high level of toxicity in humans and the environment. Despite the intervention of governments, industries, researchers and relevant stakeholders, these problems remain paramount in most regions. Therefore, given the aforementioned, it is essential to identify sustainable remediation techniques, innovative knowledge on remediation strategies and clean up techniques that could help in the mitigation of all these highlighted challenges. Moreover, several studies have revealed the deleterious influence of petroleum or oil spillages resulting in irreparable environmental dilapidation and other potential hazards to human health, agriculture, climate system, and the ecosystem in general. From the systematic analysis of the evidence-based, meta-data-based review and other reviewed literature, it is noticeable that there is scant holistic review study that will incorporate all these aforementioned environmental implications resulting from the activities of petroleum resources in the Niger Delta region of Nigeria (NDRN) in just a single study. In the interim, it is alleged that there is hardly a permanent and tangible solution to these petroleum spillage issues and their impacts on the region; albeit, awareness will be fundamental for its mitigation. Hence, this review study will attempt to fill this gap by holistically reviewing the selected environmental implications of petroleum spillages in the NDRN drawn from 219 evidence and meta-data-based reviews and other articles. Furthermore, the relevant legal frameworks that could guild in protecting against environmental issues and petroleum spillages, are discussed in this study. In conclusion, the study cautiously provides a way forward by submitting that effective research and development measures ranging from public health assessments of petroleum contamination to an all-embracing application of bioremediation technology should frequently be carried out as a matter of urgency with resilient adaptation, mollification and management of these menaces.
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Affiliation(s)
| | - Hussain Athar
- Department of Meteorology, COMSATS University Islamabad, Islamabad, 45550, Pakistan; Centre for Climate Research and Development, COMSATS University Islamabad, Islamabad, 45550, Pakistan
| | | | - Uyiosa Osagie Aigbe
- Department of Mathematics and Physics, Cape Peninsula University of Technology, Cape Town, South Africa
| | | | - Olufemi Abifarin
- Department of Private Law, Faculty of Law, Federal University Oye Ekiti, Ekiti State, Nigeria
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Harville EW, Shankar A, Buekens P, Wickliffe JK, Lichtveld MY. Self-reported oil spill exposure and birth outcomes among southern Louisiana women at the time of the Gulf oil spill: The GROWH study. Int J Hyg Environ Health 2021; 237:113829. [PMID: 34450543 DOI: 10.1016/j.ijheh.2021.113829] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2021] [Revised: 08/09/2021] [Accepted: 08/16/2021] [Indexed: 10/20/2022]
Abstract
BACKGROUND The chemical, physical, economic, and social effects of a major oil spill might adversely affect pregnancy health. OBJECTIVES To examine the relationship between oil spill exposure and birth outcomes in a cohort of women living near the Gulf of Mexico at the time of the 2010 oil spill. METHODS Between 2012 and 2016, 1375 women reported their exposure to the oil spill, and at least one livebirth. Five hundred and three had births both before and after the oil spill. Indicators of oil spill exposure included self-reported financial consequences, direct contact with oil, traumatic experiences, loss of use of the coast, and involvement in litigation. Birth outcomes were low birthweight (LBW; birthweight <2500 g) and preterm birth (PTB; >3 weeks early). Women who were not pregnant at the time of the interview (n = 1001) self-reported outcomes, while women who were pregnant (n = 374) primarily had them abstracted from medical records (n = 374). All pregnancies prior to the oil spill were considered unexposed; those after the oil spill were considered exposed or unexposed depending on interview responses. Generalized estimating equations were used to control for clustering within women, with control for confounders. RESULTS The most common type of exposure was economic (49%), but 302 women (22.0%) reported some degree of direct contact with the oil. Associations between most indicators of oil spill exposure and pregnancy outcomes were null, although when all pregnancies were examined, associations were seen with high levels of contact with oil for LBW (adjusted Odds Ratio [aOR] 2.19, 95% CI, 1.29-3.71) and PTB (aOR 2.27, 1.34-3.87). DISCUSSION In this community-based cohort, we did not find associations between report of exposure to the oil spill, with the possible exception of high oil contact in some analyses, and birth outcomes. Research incorporating specific biomarkers of oil spill exposure and stress biomarkers would be valuable, to allow for assessing both perceived and actual exposure, especially when direct toxicant exposure is minimal.
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Affiliation(s)
- Emily W Harville
- Department of Epidemiology, Tulane University School of Public Health and Tropical Medicine, New Orleans, LA, USA.
| | - Arti Shankar
- Department of Biostatistics and Data Science, Tulane University School of Public Health and Tropical Medicine, New Orleans, LA, USA
| | - Pierre Buekens
- Department of Epidemiology, Tulane University School of Public Health and Tropical Medicine, New Orleans, LA, USA
| | - Jeffrey K Wickliffe
- Department of Global Environmental Health Sciences, Tulane University School of Public Health and Tropical Medicine, New Orleans, LA, USA
| | - Maureen Y Lichtveld
- Department of Global Environmental Health Sciences, Tulane University School of Public Health and Tropical Medicine, New Orleans, LA, USA
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Abayi JJM, Gore CT, Nagawa C, Bandowe BAM, Matovu H, Mubiru E, Ngeno EC, Odongo S, Sillanpää M, Ssebugere P. Polycyclic aromatic hydrocarbons in sediments and fish species from the White Nile, East Africa: Bioaccumulation potential, source apportionment, ecological and health risk assessment. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2021; 278:116855. [PMID: 33706244 DOI: 10.1016/j.envpol.2021.116855] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2020] [Revised: 02/01/2021] [Accepted: 02/25/2021] [Indexed: 05/20/2023]
Abstract
The impact of oil exploration and production activities on the environment of sub-saharan African countries is not well studied. This study aimed at determining concentrations, sources, and bioaccumulation of 13 polycyclic aromatic hydrocarbons (PAHs) in sediments and fish from the White Nile near Melut oil fields, South Sudan. The study also assessed the ecological and human health risk associated with PAHs in this aquatic system. Total (∑13) PAH concentrations ranged from 566 to 674 ng g-1dry weight (dw) in sediments, while those in fish were 191-1143 ng g-1 wet weight (ww). ∑13PAH concentrations were significantly higher in C. gariepinus than in other fish species. Low molecular weight PAHs (LPAHs) dominated the profile of PAHs in sediments (constituted 95% of ∑13PAHs) and fish (97% of ∑13PAHs). Compared to Sediment Quality Guidelines of the United States Oceanic and Atmospheric Administration, the levels of LPAHs in this study were all above the threshold effect limits, but below the probable effect level, while those of high molecular weight PAHs (HPAHs) were all below the lowest effect levels. The carcinogenic potency equivalent concentrations of PAHs in L. niloticus and C. gariepinus were above the US EPA screening level; suggesting consumption of these species could adversely affect human health. Biota-sediment accumulation factor values (range: 0.006-3.816 g OC g-1 lipid) for PAHs showed high bioaccumulation of LPAHs in fish muscle, and that bioaccumulation decreased with increase in hydrophobicity of the compounds. This is possibly because LPAHs have higher aqueous solubilities which increases their bioavailability through water-gill transfers compared to HPAHs. Profiles of PAHs in the White Nile environment indicate predominant contribution from petrogenic sources, which could be attributed to presence of crude oil reservoirs and oil production operations. More research into the levels of other environmental pollutants in the oil-rich area is recommended.
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Affiliation(s)
- Juma John Moses Abayi
- Department of Chemistry, University of Juba, P.O Box 82, Juba, South Sudan; Department of Chemistry, Makerere University, P. O Box 7062, Kampala, Uganda
| | | | - Christine Nagawa
- Department of Forestry, Biodiversity and Tourism, Makerere University, P.O Box 7062, Kampala, Uganda
| | - Benjamin A Musa Bandowe
- Max Planck Institute for Chemistry, Multiphase Chemistry Department, Hahn-Meitner-Weg 1, 55128, Mainz, Germany
| | - Henry Matovu
- Department of Chemistry, Makerere University, P. O Box 7062, Kampala, Uganda; Department of Chemistry, Gulu University, P. O. Box 166, Gulu, Uganda
| | - Edward Mubiru
- Department of Chemistry, Makerere University, P. O Box 7062, Kampala, Uganda
| | | | - Silver Odongo
- Department of Chemistry, Makerere University, P. O Box 7062, Kampala, Uganda
| | - Mika Sillanpää
- Institute of Research and Development, Duy Tan University, Da Nang, 550000, Viet Nam; Faculty of Environment and Chemical Engineering, Duy Tan University, Da Nang, 550000, Viet Nam; Department of Chemical Engineering, School of Mining, Metallurgy and Chemical Engineering, University of Johannesburg, P. O. Box 17011, Doornfontein 2028, South Africa
| | - Patrick Ssebugere
- Department of Chemistry, Makerere University, P. O Box 7062, Kampala, Uganda.
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Mafiana MO, Kang XH, Leng Y, He LF, Li SW. Petroleum contamination significantly changes soil microbial communities in three oilfield locations in Delta State, Nigeria. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:31447-31461. [PMID: 33604834 DOI: 10.1007/s11356-021-12955-1] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/20/2020] [Accepted: 02/10/2021] [Indexed: 05/25/2023]
Abstract
Soil microbial community structure is altered by petroleum contamination in response to compound toxicity and degradation. Understanding the relation between petroleum contamination and soil microbial community structure is crucial to determine the amenability of contaminated soils to bacterial- and fungal-aided remediation. To understand how petroleum contamination and soil physicochemical properties jointly shaped the microbial structure of soils from different oilfields, high-throughput sequencing of 16S and ITS amplicons were used to evaluate the shifts of microbial communities in the petroleum-contaminated soils in Ughelli East (UE), Utorogu (UT), and Ughelli West (UW) oilfields located in Delta State, Nigeria. The results showed 1515 bacteria and 919 fungal average OTU number, and community richness and diversity, trending as AL > UT > UW > UE and AL > UW > UT > UE for bacteria, and AL > UW > UT > UE and UW > UT > AL > UE for fungi, respectively. The bacterial taxa KCM-B-112, unclassified Saccharibacteria, unclassified Rhizobiales, Desulfurellaceae, and Acidobacteriaceae and fungal Trichocomaceae, unclassified Ascomycota, unclassified Sporidiobolales, and unclassified Fungi were found to be the dominant families in petroleum-contaminated soils. Redundancy analysis (RDA) and Spearman's correlation analysis revealed that total carbon (TC), electric conductivity (EC), pH, and moisture content (MO) were the major drivers of bacterial and fungal communities, respectively. Gas chromatography-mass spectrophotometer (GC-MS) analysis exhibited that the differences in C7-C10, C11-C16, and C12-C29 compounds in the crude oil composition and soil MO content jointly constituted the microbial community variance among the contaminated soils. This study revealed the bacterial and fungal communities responsible for the biodegradation of petroleum contamination from these oilfields, which could serve as biomarkers to monitor oil spill site restoration within these areas. Further studies on these contaminated sites could offer useful insights into other contributing factors such as heavy metals.
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Affiliation(s)
- Macdonald Ogorm Mafiana
- School of Environmental and Municipal Engineering, Lanzhou Jiaotong University, 730070, Lanzhou, People's Republic of China.
| | - Xiao-Hu Kang
- School of Environmental and Municipal Engineering, Lanzhou Jiaotong University, 730070, Lanzhou, People's Republic of China
| | - Yan Leng
- School of Environmental and Municipal Engineering, Lanzhou Jiaotong University, 730070, Lanzhou, People's Republic of China
| | - Li-Fang He
- School of Environmental and Municipal Engineering, Lanzhou Jiaotong University, 730070, Lanzhou, People's Republic of China
| | - Shi-Weng Li
- School of Environmental and Municipal Engineering, Lanzhou Jiaotong University, 730070, Lanzhou, People's Republic of China.
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Eleke C, Ngbala-Okpabi SO, Ogaji D, Agu IS, Bempong-Eleke EN. Effects of Environmental Crude Oil Pollution on Newborn Birth Outcomes: A Retrospective Cohort Study. J Nurs Res 2021; 29:e161. [PMID: 34049324 DOI: 10.1097/jnr.0000000000000435] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
BACKGROUND The World Health Organization encourages countries to improve birth outcomes to reduce rates of neonatal mortality and morbidity. PURPOSE This study was designed to examine the effect of environmental crude oil pollution on newborn birth outcomes in Rivers State, Nigeria. METHODS A retrospective cohort design was used to examine the effects of exposure to oil pollution on birth outcomes using facility-based records. K-Dere (an oil-polluted community) served as the exposure group, whereas birth records from Iriebe served as the comparison group. A sample size of 338 systematically selected birth records was examined (169 records for each arm of the study). A data extraction sheet was used for data collection. Data were analyzed using descriptive and inferential statistics at p < .05. RESULTS The risk of preterm birth was significantly higher in the exposed group (16% vs. 7.7%, relative risk = 2.08, 95% CI [1.11, 3.89], p = .018). At 6 weeks after birth, newborns in the exposed group weighed significantly less (4.64 ± 0.82 vs. 4.85 ± 0.92 kg, p = .032) and reported significantly higher incidence of morbidity compared with the newborns in the comparison group (relative risk = 3.03, 95% CI [2.20, 4.19], p < .001). CONCLUSIONS The oil-polluted area examined in this study was found to have a higher risk of preterm birth, a slower rate of newborn growth, and a higher rate of newborn morbidity than the non-oil-polluted area at 6 weeks after birth. Stakeholders should sustain efforts to remediate the environment in polluted regions and prevent oil pollution. Future research should investigate the mechanisms of the observed toxicological effects and the targeted protection of vulnerable groups in oil-polluted communities.
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Affiliation(s)
- Chinemerem Eleke
- MSN, RM, RN, Lecturer, Faculty of Clinical Sciences, Department of Nursing, University of Port Harcourt, Choba, Nigeria
| | - Sabinah Obele Ngbala-Okpabi
- MSN, RM, RN, Researcher, Africa Centre of Excellence in Public Health and Toxicology Research, University of Port Harcourt, Choba, Nigeria
| | - Daprim Ogaji
- PhD, MBBS, Centre Leader and Research Coordinator, Africa Centre of Excellence in Public Health and Toxicology Research, University of Port Harcourt, Choba, Nigeria
| | - Ifeyinwa S Agu
- MSN, RM, RN, Lecturer, Department of Nursing Sciences, Abia State University, Uturu, Nigeria
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Hoang SA, Lamb D, Seshadri B, Sarkar B, Choppala G, Kirkham MB, Bolan NS. Rhizoremediation as a green technology for the remediation of petroleum hydrocarbon-contaminated soils. JOURNAL OF HAZARDOUS MATERIALS 2021; 401:123282. [PMID: 32634659 DOI: 10.1016/j.jhazmat.2020.123282] [Citation(s) in RCA: 58] [Impact Index Per Article: 19.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/18/2020] [Revised: 06/18/2020] [Accepted: 06/19/2020] [Indexed: 05/22/2023]
Abstract
Rhizoremediation is increasingly becoming a green and sustainable alternative to physico-chemical methods for remediation of contaminated environments through the utilization of symbiotic relationship between plants and their associated soil microorganisms in the root zone. The overall efficiency can be enhanced by identifying suitable plant-microbe combinations for specific contaminants and supporting the process with the application of appropriate soil amendments. This approach not only involves promoting the existing activity of plants and soil microbes, but also introduces an adequate number of microorganisms with specific catabolic activity. Here, we reviewed recent literature on the main mechanisms and key factors in the rhizoremediation process with a particular focus on soils contaminated with total petroleum hydrocarbon (TPH). We then discuss the potential of different soil amendments to accelerate the remediation efficiency based on biostimulation and bioaugmentation processes. Notwithstanding some successes in well-controlled environments, rhizoremediation of TPH under field conditions is still not widespread and considered less attractive than physico-chemical methods. We catalogued the major pitfalls of this remediation approach at the field scale in TPH-contaminated sites and, provide some applicable situations for the future successful use of in situ rhizoremediation of TPH-contaminated soils.
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Affiliation(s)
- Son A Hoang
- Global Centre for Environmental Remediation (GCER), Advanced Technology Centre (ATC) Building, Faculty of Science, The University of Newcastle, University Drive, Callaghan, NSW 2308, Australia; Division of Urban Infrastructural Engineering, Mien Trung University of Civil Engineering, Phu Yen 56000, Viet Nam
| | - Dane Lamb
- Global Centre for Environmental Remediation (GCER), Advanced Technology Centre (ATC) Building, Faculty of Science, The University of Newcastle, University Drive, Callaghan, NSW 2308, Australia
| | - Balaji Seshadri
- Global Centre for Environmental Remediation (GCER), Advanced Technology Centre (ATC) Building, Faculty of Science, The University of Newcastle, University Drive, Callaghan, NSW 2308, Australia
| | - Binoy Sarkar
- Lancaster Environment Centre, Lancaster University, Lancaster LA1 4YQ, United Kingdom
| | - Girish Choppala
- Global Centre for Environmental Remediation (GCER), Advanced Technology Centre (ATC) Building, Faculty of Science, The University of Newcastle, University Drive, Callaghan, NSW 2308, Australia
| | - M B Kirkham
- Department of Agronomy, Kansas State University, Manhattan, KS, United States
| | - Nanthi S Bolan
- Global Centre for Environmental Remediation (GCER), Advanced Technology Centre (ATC) Building, Faculty of Science, The University of Newcastle, University Drive, Callaghan, NSW 2308, Australia.
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Adewoye T, Ogunleye O, Abdulkareem A, Salawudeen T, Tijani J. Optimization of the adsorption of total organic carbon from produced water using functionalized multi-walled carbon nanotubes. Heliyon 2021; 7:e05866. [PMID: 33458443 PMCID: PMC7797377 DOI: 10.1016/j.heliyon.2020.e05866] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2020] [Revised: 10/23/2020] [Accepted: 12/23/2020] [Indexed: 01/18/2023] Open
Abstract
This study investigated the removal of Total Organic Carbon (TOC) from produced water by batch adsorption process using adsorbents developed from Multi-Walled Carbon Nanotubes (MWCNTs). The MWCNTs, synthesized by catalytic chemical vapour deposition method using kaolin-supported tri-metallic (iron-cobalt-nickel) catalyst were purified by H2SO4/HNO3 and then functionalized with 1-pyrenebutanoic acid N-hydroxyl succinimidyl ester (PSE). The raw, purified and functionalized MWCNTs were characterized by High Resolution Scanning Electron Microscopy (HRSEM), High Resolution Transmission Electron Microscopy (HRTEM), Brunauer-Emmett-Teller (BET) and Fourier Transform Infrared Spectroscopy (FTIR). In the results, HRSEM/HRTEM revealed the structure, purity and also confirmed the attachment of the PSE molecule onto the nano-adsorbent(s). The BET surface areas of MWCNTs, PMWCNTs and FMWCNTs were 970.17, 869.25 and 831.80 m2/g, respectively while the FTIR established the existence of surface functional groups. The functionalized MWCNTs (FMWCNTs) nano-adsorbent showed superior performance efficiency (93.6%) than the purified MWCNTs (PMWCNTs) (79.2%) as examined under the same batch adsorption condition: 0.02 g adsorbent dosage, 10-90 min contact time and 30 °C solution temperature probably, due the improved wettability resulted from incorporation of PSE. Subsequently, Central Composite Design (CCD) was applied to optimize the process parameters for the sorption of TOC onto FMWCNTs. The CCD in the response surface methodology predicted 260 mg/g adsorption capacity of FMWCNTs in the removal of TOC at the optimum condition of 49.70 min contact time, 34.81 °C solution temperature, and 0.02 g adsorbent dosage. The kinetics data were best described by pseudo-second-order model and thermodynamic parameters suggested that the process was feasible, spontaneous and exothermic. It can be inferred from the various analysis conducted that the developed FMWCNTs nano-adsorbent is effective for removal of TOC from oil-produced water and may be explored for removal of organic contaminants from other industrial wastewater.
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Affiliation(s)
- T.L. Adewoye
- Department of Chemical Engineering, University of Ilorin, PMB 1515 Ilorin, Kwara State, Nigeria
- Nanotechnology Research Group, Africa Centre of Excellence for Mycotoxin & Food Safety, Federal University of Technology, PMB 65 Minna, Niger State, Nigeria
| | - O.O. Ogunleye
- Department of Chemical Engineering, Ladoke Akintola University of Technology, PMB 4000, Ogbomoso, Oyo State, Nigeria
| | - A.S. Abdulkareem
- Department of Chemical Engineering, Federal University of Technology, PMB 65 Minna, Niger State, Nigeria
- Nanotechnology Research Group, Africa Centre of Excellence for Mycotoxin & Food Safety, Federal University of Technology, PMB 65 Minna, Niger State, Nigeria
| | - T.O. Salawudeen
- Department of Chemical Engineering, Ladoke Akintola University of Technology, PMB 4000, Ogbomoso, Oyo State, Nigeria
| | - J.O. Tijani
- Department of Chemistry, Federal University of Technology, PMB 65 Minna, Niger State, Nigeria
- Nanotechnology Research Group, Africa Centre of Excellence for Mycotoxin & Food Safety, Federal University of Technology, PMB 65 Minna, Niger State, Nigeria
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Watts M, Zalik A. Consistently unreliable: Oil spill data and transparency discourse. THE EXTRACTIVE INDUSTRIES AND SOCIETY 2020; 7:790-795. [PMID: 32341911 PMCID: PMC7184024 DOI: 10.1016/j.exis.2020.04.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/12/2020] [Revised: 04/20/2020] [Accepted: 04/20/2020] [Indexed: 06/11/2023]
Abstract
Our recent research reveals enormous discrepancies in oil spill data disclosed by regulatory institutions and corporate sources in Nigeria. Federal agencies as well as major international oil corporations publish inconsistent and sometimes contradictory figures, often employing different spatial or regional categorizations. Uncertainties pertaining to data veracity in the Niger Delta, alongside the thin scientific record inflect deeply contentious debates regarding the country's oil industry. For advocacy organizations, the result is that those seeking to monitor oil spills may spend hours trying to square and cross-reference uneven information, time that could otherwise be spent assessing the scale of impacts and analyzing the complex structural causes surrounding them. Scholarly work in other jurisdictions indicates that the staging of non-transparent, incoherent and/or intentionally misleading data on oil spill risks is not unique to Nigeria, leading to a kind of epistemological vertigo in studying this sector.
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Affiliation(s)
- Michael Watts
- University of California at Berkeley, 505 McCone Hall, Berkeley, CA 94720-4740, United States
| | - Anna Zalik
- York University, Global Geography, HNES Building, 4700 Keele Street, York University, Toronto, ON M3J 1P3 Canada
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Zeng L, Chang Y, Wu Y, Yang J, Xu JF, Zhang X. Charge-reversal surfactant antibiotic material for reducing microbial corrosion in petroleum exploitation and transportation. SCIENCE ADVANCES 2020; 6:eaba7524. [PMID: 32596463 PMCID: PMC7304972 DOI: 10.1126/sciadv.aba7524] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/01/2020] [Accepted: 05/11/2020] [Indexed: 05/06/2023]
Abstract
The corrosions caused by sulfate-reducing bacteria (SRB) are serious problems in petroleum exploitation and transportation, which can lead to safety problems, environmental pollutions, and economic losses. Here, a charge-reversal surfactant antibiotic material N-dodecyl-1-carboxylic acid-1-cyclohexenyl-2-carboxamide (C12N-DCA) is designed and synthesized. C12N-DCA is a negatively charged surfactant, which cannot be adsorbed by soil and rock in a large amount. Therefore, it can reach the "lesion location", with enough concentration. After being hydrolyzed and charge reversed under the acceleration of H2S produced by SRB, C12N-DCA becomes a positively charged surfactant dodecane ammonium salt to kill SRB. Through a simulating experiment, it is found that C12N-DCA can reach the SRB inhibition ratio of almost 100%, and it can reduce iron corrosion by 88%. Such an antibiotic material or its homologs may be added to the chemical flooding fluids, killing SRB during petroleum exploitation and reducing the SRB-induced corrosion in the petroleum exploitation and transportation.
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Affiliation(s)
- Lingda Zeng
- Key Lab of Organic Optoelectronics and Molecular Engineering, Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Yincheng Chang
- Key Lab of Organic Optoelectronics and Molecular Engineering, Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Yukun Wu
- Key Lab of Organic Optoelectronics and Molecular Engineering, Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Jinpeng Yang
- Key Lab of Organic Optoelectronics and Molecular Engineering, Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Jiang-Fei Xu
- Key Lab of Organic Optoelectronics and Molecular Engineering, Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Xi Zhang
- Corresponding author. (J.-F.X.); (X.Z.)
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