Godson R E E Ana

A minimum of basic water supply service is pertinent to improving living standards and water-dependent quality of life indices. In Nigeria, 14% have access to safely managed drinking water services, though approximately 30% of water pumps and schemes are likely to fail within 12 months of construction. This study aims to determine household water s...

Background: Infection control is pivotal in reducing healthcare-associated infections (HAIs), one of the leading causes of morbidity with growing prevalence in sub-Saharan Africa. Objectives: We investigated the knowledge, attitude and self-reported hygiene practices towards hospital infection control among healthcare workers (HCWs) at the State Sp...

High carbon monoxide (CO) concentrations can elicit adverse health effects. We assessed CO concentrations at filling stations and determined carboxyhemoglobin (%COHb) levels and health problems reported by filling station attendants (FSAs) via questionnaires. This cross-sectional design studied 20 filling stations from Ibadan North Local Government...

Plastic wastes contribute significantly to the volume of wastes generated in secondary schools. This study aims at providing student-oriented methods of managing plastic wastes. Using a quasi-experimental study design, a 3-stage random sampling technique was used to select two secondary schools: Oritamefa Baptist Model School (O.B.M.S) and Anglican...

Studies have shown that organic fertilizer, a product of biodegradable organic matter, is not popular among Nigerian farmers because of its low quality. To alleviate this problem, this study was designed to explore the effect of nutrient-rich materials on quality of fertilizer made from market organic wastes. It adopted an experimental study design...

Secondary Inorganic Aerosols (SIA) is of core relevance in climate, public health and ecosystem. Aerosols can be categorized as primary, when it is directly released from sources, and termed secondary, when subsequently formed in the atmosphere from chemical processes involving a set of precursor gases. SIA usually consist of a mixture of component...

Secondary Inorganic Aerosols (SIA) is of core relevance in climate, public health and ecosystem. Aerosols can be categorized as primary, when it is directly released from sources, and termed secondary, when subsequently formed in the atmosphere from chemical processes involving a set of precursor gases. SIA usually consist of a mixture of component...

The influence of seasonal and environmental factors on malaria parasite prevalence was investigated in Elele community, Rivers State, Nigeria. A total of 180 children, aged < 5years were studied and their mothers (women within the reproductive age group)were also recruited as respondents) in the Dry Season(DS) and Rainy Season (RS) respectively. Ma...

Cassava processing generates large quantities of wastes which contribute significantly to environmental pollution. These wastes are abundant and inexpensive feedstock for bioethanol production that are available all year round in every region in Nigeria. Despite their wide availability, optimal generation of bioethanol from these wastes has not bee...

PurposeRapid nutrient depletion in soils is one of the major problems that affect food production and food security in Sub-Saharan Africa. Studies have linked the growth of food crops with seasonal variation and differences in weather conditions. This study was conducted to assess the effects of various organic fertilizer formulations (OFFs) on the...

Background There is an increasing range of adverse health effects associated with air pollution at very low concentrations. Few studies have assessed respiratory parameters among filling station attendants. Objectives This study assessed air pollutants; particulate matter (PM 10 ) and total volatile organic compounds (TVOC) concentrations at filli...

The use of oil palm (Elaeis guineensis) waste as a potential source of soil conditioner in agriculture has long been identified. Its conversion into smokeless and low emission charcoal which is more environmental friendly has not been well investigated. The present study explored conversion of oil palm waste into low emission charcoal. Palm Kernel...

Quantification of PM2.5 (particulate matter <2.5 µm) bound heavy metals and their potential health risks were carried out around a cement manufacturing company in Ewekoro, Nigeria. The PM2.5 samples were collected using Environtech gravimetric sampler. A four-staged sequential extraction procedure was used to fractionate PM2.5 bound chromium (Cr),...

Introduction Hairdressers are exposed to potentially hazardous chemical emissions during hair styling, cutting, coloring and washing; exposures potentially result in adverse health effects. Limited information on indoor air and environmental quality (IEQ) in salons in less developed countries exists, especially outside of Asia. This study assessed...

ABSTRACT In the last three decades most countries, particularly the developing nations, have been experiencing energy deficit because of overdependence on fossil-based fuels. This development has led to the search for alternative energy sources. Nigeria is rich in biomass and waste materials that are suitable precursors for biofuels, yet these hav...

Carbon monoxide (CO) remains a leading cause of work-related chemical poisoning. Vehicular emissions are the primary daily ambient source of CO in urban Nigerian motor parks, where there have been few human exposure studies. Using a cross-sectional comparative design, we assessed carboxyhaemoglobin levels (% COHb), a biomarker of CO exposure, among...

Source-separation is a solid waste management strategy which aids recycling. This concept is relatively new in Nigeria. The study therefore assessed the effects of a training intervention, education and awareness and provision of a refuse bin on workers' practice of -separation. A validated questionnaire with a 5-point knowledge scale was used to c...

A combination of dried fruits of Xylopia aethiopica and Tetrapleura tetraptera are used for indigenous household water treatment in Illah Community without information on its effectiveness in water purification. This study therefore, assessed the effectiveness of treatment method on the bacteriological quality of drinking water in Illah community....

Nosocomial infections (NIs) remain a global health burden with higher incidence in Africa. We assessed building conditions and risk of NIs from microbial contamination of appliances and surfaces in a Specialist hospital in Southwest Nigeria. The study sampled 120 surfaces in 12 wards during normal occupational activities. Moulds on ceilings and dus...

The use of oil palm (Elaeis guineensis) waste as a potential source of soil conditioner in agriculture has long been identified. Its conversion into smokeless and low emission charcoal which is more environmental friendly has not been well investigated. The present study explored conversion of oil palm waste into low emission charcoal. Palm Kernel...

In this study carcinogenic and non-carcinogenic health risk due to exposure to PM2.5-bound trace metals from an industrial area in Southwestern Nigeria was estimated. A four-step chemical sequential extraction procedure was employed for the chemical extraction of arsenic (As), cadmium (Cd), chromium (Cr) copper (Cu), manganese (Mn), nickel (Ni), an...

Livestock farm waste contributes substantially to annual worldwide emissions of GHG (Greenhouse Gases), including CH4 (Methane) and CO2 (Carbon Dioxide). However, despite evidence of global climate change and its adverse health effects, studies on anthropogenic contributions to the increasing levels of GHG, particularly from livestock waste managem...

Ambient atmospheric fine particle emission contribution to industrial pollution load is hard to quantify due to absence of air quality monitoring stations and difficulties in assessing suitable analytical instruments. Therefore, to keep abreast of air quality information, the use of physicochemical signatures to assess the sources of elements assoc...

Faecal sludge which is usually highly laden with pathogenic microorganisms serves as a route of disease transmission especially when used as organic amendment or when it contaminates water sources. Therefore, the present study investigates the effect of thermal treatment on the microbial load of faecal sludge. Faecal sludge samples were collected f...

Human activities create waste; the composition of solid waste varies from town to town and depends on food habits, cultural practices, occupations and the presence and apes of industries and institutions. Tn Nigeria, only a little is known about the characteristics of solid wastes generated in institutions of higher learning. The study therefore ch...

The quest for biofuels in Nigeria, no doubt, represents a legitimate ambition. This is so because the focus on biofuel production has assumed a global dimension, and the benefits that may accrue from such effort may turn out to be enormous if the preconditions are adequately satisfied. As a member of the global community, it has become exigent for...

Acute respiratory infection is the fourth major cause of morbidity and mortality among children under five globally. However, information on housing characteristics that could predispose children under five to these infections is scanty in Nigeria. Therefore, this study assessed the quality of housing and its contribution to the acquisition of acut...

Source-separation is a solid waste management strategy which aids recycling. This concept is relatively new in Nigeria. The study therefore documented the Knowledge, Attitude and Practice of Source-separation among workers such as Non- Academic Staff and Business Operators at the University of Ibadan, Nigeria. A cross-sectional design was adopted....

Exposure to high PM10 by women and children for hours on a daily basis in poor ventilated kitchen may lead to respiratory morbidity among this vulnerable group. In Nigeria, data on the levels of air pollutants associated with kerosene stove combustion are very scarce. Like-wise little had been documented on the pulmonary health of women exposed to...

Carbon monoxide (CO) and carbon dioxide (CO 2 ) emissions arising from vehicles and combustion processes in motor parks predisposes to adverse health outcomes and associated health risks. There is dearth of studies and data on air quality in motor parks in Nigeria, hence, the need to assess the levels of CO and CO 2 and their relationship with mete...

Inadequate and erratic power supplies mean small businesses use electric generators for alternative power. The authors' goal in the study described here was to assess noise from electric generators and impacts in the commercial areas of Agbowo and Ajibode in Ibadan, Nigeria. Noise levels (A-weighted decibels [dBA]) were measured over 12 weeks, thre...

Growing evidence suggests how global background levels of atmospheric carbon dioxide (CO2) are increasing and this impacts environmental quality and human and ecological health. Data from less developed countries are sparse. We determined spatial and temporal variations in concentrations of CO2 in selected locations in Ibadan, Nigeria with identifi...

Trace metal concentrations were determined in particulate matter (PM10) in ambient air of four purposively selected residential areas in Ibadan, Nigeria namely Bodija market (BM), Ojo Park (OP), Oluyole Estate (OE) and University of Ibadan (UI). PM10 was determined in the morning (7-10 a.m.) and afternoon (2-5 p.m.) for 12 weeks in the dry season m...

font-face { font-family: "Arial"; }@font-face { font-family: "Calibri"; }p.MsoNormal, li.MsoNormal, div.MsoNormal { margin: 0in 0in 10pt; line-height: 115%; font-size: 11pt; font-family: "Times New Roman"; }div.Section1 { page: Section1; } Background: Exposure to indoor air pollution (IAP) from burning biomass causes 2 million yearly deaths in wome...

Background: Acute respiratory infections (ARIs) are the fourth major cause of morbidity and mortality among children under 5 worldwide. However, information on the risk factors that could predispose children under 5 to ARIs is scanty in Nigeria. Aim: To assess which environmental factors contribute to the acquisition of ARIs in children under 5...

Domestic cooking with biomass fuels exposes women and children to pollutants that impair health. The objective of the study was to investigate the extent of household air pollution from biomass fuels and the effectiveness of stove intervention to improve indoor air quality, exposure-related health problems, and lung function. We conducted a communi...

Exposure to particulate matter from burning biomass fuels is believed to affect oxidant-antioxidant balance and to induce oxidative stress. Fifty-nine mother-child pairs from 59 households that used firewood exclusively for cooking in three rural communities in southwest Nigeria underwent blood test for albumin, pre-albumin, retinol-binding protein...

Acute respiratory infection is the fourth major cause of morbidity and mortality among under-five children globally. However, the profile of microbial burden that could contribute to these infections among under-five children in the indoor environments has not been extensively studied particularly in developing countries like Nigeria. This study wa...

Malaria is a major public health problem and its prevalence is dependent on mosquitoes. There is an increased interest in developing plant-based insecticides as sustainable alternatives to chemical insecticides for the control of mosquitoes. The potential of Moringa plant as a larvicide against the malaria vector, Anopheles gambiae s.s was evaluate...

The objective of this study was to determine the spatial variation of particle-bound heavy metals in two communities with different industrial status in Nigeria’s Niger Delta Area. Fourteen ambient respirable particulate matter (PM10) samples 7 each from Eleme (highly industrialized) and Ahoada East (less industrialized) communities were collected...

The indoor air quality in day-care centres may influence the occurrence of infectious diseases and increase the risk of non-communicable diseases. The World Health Organisation (WHO) and other international agencies have considered particulate matter as an indicator of impact of air pollution on human health yet information on this from childcare c...

Background. Exposure to noise from mobile devices is suspected to affect hearing. Data are limited, particularly in less developed countries. We assessed noise levels from mobile phones and user audiometric status at University of Ibadan, Nigeria, in an initial cross-sectional study. Methods. Fifty-eight staff and 45 young adult students owning mob...

The Niger Delta area in Nigeria has major oil producing and refining centers that characterized enormous industrial activities, especially in the petroleum sector. These industrial processes release different kinds of atmospheric pollutants, of which there is paucity of information on their levels and health implications. The objective of this stud...

Urban environmental noise pollution has impact on the quality of life and it is a serious health and social problem. The aim of this study was to assess the sources and noise levels, and possible impacts in selected residential neighbourhoods of Ibadan metropolis. Structured questionnaire was used to elicit information from respondents on demograph...

In order to tackle the problem posed by solid wastes (SWs) in Ibadan, an integrated solid waste recycling facility was built in 2004 by the Oyo State government at Orita-Aperin without prior information on SW generated in the area. This study was designed to assess the SWs generated in the area, with a view of sustainability of raw material procure...

Inappropriate solid waste management practices in schools in less-developed countries, particularly in major urban communities, constitute one of the major factors leading to declining environmental health conditions. The objective of the authors' descriptive, cross-sectional study was to assess solid waste management problems in selected urban sch...

Globally, urbanization has been occurring more rapidly in small-to-medium-sized cities in less-developed countries of Africa and Asia. Studies have suggested associations between traffic and industry-related air pollutants and adverse health outcomes. These chemical and physical exposure agents have also received increased attention for environment...

This ecologic study assessed disparities between environmental risk factors and cancers in two Nigerian cities. Environmental data were obtained for Port Harcourt (highly industrialized) and Ibadan(less industrialized) cities respectively. Ten-year cancer records were also obtained from the University of Port Harcourt Teaching Hospital (UPTH), Port...

The University of Ibadan has developed a simple design that can be easily employed by the smaller communities for managing their organic wastes. The model is consisting of three PVC digesters, which are connected in series with a slope for gravity flow of the slurry with uniform mixing. The capacity of the digesters is 226 liters and the top digest...

Research on air quality in and around schools, and the associated vulnerability of school-age children, is limited in less developed countries (LDCs), particularly Africa. The main objective of this study was to conduct an initial assessment of sources of air pollution in and around schools as a surrogate for air quality and report adverse health e...

The descriptive cross-sectional study assessed contributions of Youth Environmental Scout (YES) clubs toward sustainable environmental programs in selected schools in Ibadan, southwest Nigeria. It involved administration of questionnaires, in-depth interviews and observation checklists and results were analyzed using SPSS 10 software package. Resul...

The main aim of this study was to assess the prevalence of various health outcomes associated with exposure to environmental risk factors including industrial pollution in selected communities of Nigeria's oil-rich Niger delta area (NDA). The study involved both laboratory experiments and community health surveys using questionnaires and hospital r...

Most schools in Ibadan, Nigeria, are located near major roads (mobile line sources). We conducted an initial assessment of noise levels and adverse noise-related health and learning effects. For this descriptive, cross-sectional study, four schools were selected randomly from eight participating in overall project. We administered 200 questionnaire...

Arsenic is a naturally occurring metalloid element that is found in soil, air and water. Environmental arsenic exists in both organic and inorganic states. Organic arsenicals are generally considered non toxic, whereas inorganic forms are toxic. The most acutely toxic form is arsine gas. Inorganic arsenic exists predominantly in trivalent (As3+) an...

The principal objectives of this study are to (a) investigate the prevalence of elevated blood lead levels (EBLLs) in children of three major cities of Nigeria with different levels of industrial pollution; (b) identify the environmental, social and behavioral risk factors for the EBLLs in the children; and (c) explore the association between malar...

Purpose – This paper seeks to describe the impact of a series of bomb explosions (Ikeja Ammunition Transfer Depot, Lagos, Nigeria) on the environment, health and psychology of the local communities. Design/methodology/approach – Information was collected from reports in local newspapers, records and in-depth interviews with residents and opinion le...

The objective of this study was to measure the levels of selected atmospheric contaminants and assess their possible association with the prevalence of several self- reported respiratory and dermal symptoms among workers in the refinery and petrochemical complexes at Eleme. PM10, lead (Pb) and polycyclic aromatic hydrocarbons (PAH) were determined...

This study determined, in comparison with guideline limits, the levels of Polycyclic Aromatic Hydrocarbons (PAH) in the soils at Eleme (highly industrialized) and Ahoada East (less industrialized) communities in the Niger Delta Area. Sixteen grab soil samples with 8 samples each from different locations in each community were collected at depth 0 -...