Taiwo Babatunde Hammed

Marine plastic pollution, a major public health issue worldwide, releases toxic persistent organic pollutants (POPs) causing endocrine disruption, cancers, and other adverse effects. However, research on these compounds in the Nigerian marine environment is limited. Using a cross-sectional design and incorporating a laboratory component, this study...

Marine plastic pollution is a major public health issue worldwide. Marine plastics release toxic persistent organic pollutants (POPs) that cause endocrine disruption, cancers, and other adverse effects on man. However, research on these compounds in the Nigerian marine environment is limited. Using a cross-sectional design and incorporating a labor...

The consumption of low cyanide content is not lethal but long-term intake could cause severe health problems. This study assessed the cyanide levels, proximate composition, perception and consumption pattern of cassava leaf varieties in three communities in Southern Nigeria. Fresh cassava leaf samples (TMS 01/1368, Meotoré, B693, Jokojéu, TMS 30572...

Purpose Faecal sludge (FS) and organic market waste (MW) have resources that could be recovered by co-com-posting though not fully explored under changing climatic conditions in Nigeria. This study explored the characteristics and nutrient quality of co-composts produced from pre-treated FS and MW feedstocks in Nigeria. Method The study was explora...

Water hyacinth (Eichhorniacrassipes) is one of the world's worst weeds causing major problems to the global aquatic habitat particularly in the tropics. This paper presents the findings of a research that was carried out to determine the effect of adding cow dung to water hyacinth on the biogas yield. Two drums, 100 litre capacity each were used as...

This study determined oil recovery potential of Hyptis suaveolens for its beneficial use. Pulverized leaves (500 g) of Hyptis suaveolens was hydro-distilled for 3 hours using Clevenger apparatus set up. The percentage yield of the oil was 0.29 % (v/w). The GC-FID analysis of the extractedoil revealed 36 chemical components (99.99 %) of which 72.54...

In line with the NUC request to the University of Ibadan to develop a ‘Blueprint for Health Security in Nigeria by 2050’, this document was prepared to highlight steps and discuss actions required toward achieving this goal. The situation of environmental problems in Nigeria such as: erosion and land subsidence, flooding (coastal, river and urban),...

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...

The study was carried out at Akole-Oke Ata, a peri-urban area of Abeokuta, to determine the acceptability of communal waste management systems that can be adopted to foster community participation in waste management. Through a convenience sampling technique, semi-structured interviewer-administered questionnaire were administered to 150 respondent...

Lack of proper management of litters generated by zoo animals can escalate into very serious environmental health hazards and reduce touristic sight attraction to the visitors and picnickers. This paper assessed the number of animals and, amounts of organic wastes produced and their disposal methods in a zoo located on the campus of university of I...

An experimental study design with laboratory analysis was used to evaluate effects of natural and artificial drying on the quality of organic fertilizers. Organic waste was subjected to windrow composting and the matured compost was dried using two different methods: Sun Drying (SD) and an Electric Rotary Dryer (ERD). Part of the fertilizer was spi...

There are approximately 250,000 species of plants worldwide and of those numbers, about 3 per cent, or 8,000 species behave as weeds. Of those 8,000, only 200 to 250 are major problems in agriculture worldwide. This paper review the world’s major environmental weeds through literature search. It revealed that not all naturalised plants are environm...

Wastes in Nigeria, both liquid and solid, have potential recycling values. Municipal solid waste management has attracted considerable interest among communities and within government because of its complex nature and associated economic, environmental and sociological problems. The materials that have a high reuse value are plastics, paper, metal,...

Background: In Ijebu-ode, borehole water is the most reliable and readily available source of water to the various households. Though, borehole water (groundwater) quality has been generally considered adequate for consumption but a poor siting and management of a borehole can pose potential risks to consumers. For instance, short distance from sou...

Among all the environmental factors that affect progress of composting and quality of organic fertilizers, temperature and nutrients are well documented. However, very little attention is given to moisture contents (MC). In this chapter of a book, effect of MC on bio-mineralisation of nutrients, release of heavy metal and microbial characteristics...

This book revealed the need for minimization, reuse and recycling of wastes with advocacy towards zero waste to landfill. Nigeria and several African countries are looking for more and more land space to be used as landfills to manage the increasing urbanization and waste generation. From the book, Nigerian communities are realizing the value of wh...

This book on Mushrooms is the outcome of a well-researched document, useful for Nigerian communities. Nigerian communities pick up or buy mushrooms which grow wildly in the bush and sold on roadside. This practice is adjudged to be a health hazard as they are unable to distinguish between edible and the poisonous varieties. This book serves as a he...

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...

Composting has proven to be most effective in combating large organic waste generation in urban settings like Ibadan. This study was designed to determine macro-invertebrate population changes as indicator for stages of organic waste composting. Mixture of cow rumen (240 kg) and vegetable (80 kg) waste were shared equally into aerated (A) and non-a...

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...

In support of the Government of Nigeria’s efforts to address the country’s water and sanitation challenges, UNICEF Nigeria is implementing a DFID-funded Sanitation, Hygiene and Water (SHAWN II) project in Nigeria from 2014 to 2017. The project builds on the previous DFID funded SHAWN I. SHAWN II is implemented in six states, i.e. the original four...

The company produces roofing sheet. In a bid to ensure compliance with environmental standards and regulations as regards the effluents discharges, the management put an Effluent Treatment Tank (ETP) that is made up of a constructed wetland planted with common reed (Phagmite karka and Vetiverian igritanna) on a bed of layers of sand and gravel to r...

with laboratory analysis was used to evaluate effects of natural and artificial drying on the quality of organic fertilizers. Organic waste was subjected to windrow composting and the matured compost was dried using two different methods: Sun Drying (SD) and an Electric Rotary Dryer (ERD). Part of the fertilizer was spiked with chemical fortifiers...

Flooding and waste management related problems have become matter of public health concern in the last few years in Ibadan, Nigeria. In this study, waste management activities at Kube-Atenda in Ibadan with a focus on greenhouse gases emissions (GHS), rainfall pattern and occurrence of flooding were investigated. Data were collected, using calibrate...

This study was carried out to determine microbial load of fresh and smoked Bonga shad fish (Ethmalosa fimbriata) and hygiene practices among fishmongers in Epe town, Epe Local Government Area of Lagos State (Nigeria). Through a cross-sectional in design, a semi-structured questionnaire was administered on 44 consented fishmongers to collect data on...

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 Anglica...

Lack of proper management of litters generated by zoo animals can escalate into very serious environmental health hazards and reduce touristic sight attraction to the visitors and picnickers. This paper assessed the number of animals and, amounts of organic wastes produced and their disposal methods in a zoo located on the campus of University of I...

Exposure to compromised indoor air is one of the factors affecting the health and productivity of workers in the workplace. Studies have proved that the number of related health complaints from workplace has increased in recent years. Indoor air quality and perceived health effects experienced by occupants of selected offices and classrooms in the...

This study investigated water and sanitary conditions of a typical faculty of Public Health building, University of Ibadan, Nigeria. A cross-sectional study was conducted and 108 consented students and staff members were interviewed using a semi-structured questionnaire. Fifteen (15) toilet facilities with 45 rooms were also observed using an obser...

The study investigated the Telfairia occidentalis waste (leaves and stalk) potential in supplementing the naturally low nutrients in compost. Experimental study design was conducted inside windrows to compare different recipes for aerobic composting of the waste. Total of four windrow chambers (labeled as: AA, BB, CC, TO) were used. Inside each cha...

This paper assessed solid waste collection and transportation activities in Ibadan, Nigeria, and the associated challenges with a view of providing a sustainable solution to waste management problems in the city. An intensive literature search, key informant interviews (KIIs), in-depth interviews (IDIs) and on-site observation checklist were used f...

The solid waste management systems in a developing country are characterized by problems of low or no service coverage, open dumping and open burning of the wastes. Different approaches to waste management are not sustainable due to lack of community participation. The study was carried out at Akole-Oke Ata, a peri-urban area of Abeokuta, to determ...

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...

Throughout the world, waste sector has been implicated in significant contribution to anthropogenic greenhouse gas (GHG) emissions. Involving communities in recycling their solid waste would ensure climate change effect mitigation and resilience. This study was carried out to improve waste management practices through a community-led intervention a...

This paper describes various types of wastes generated in Nigeria, of which about 50 to 70 per cent is organic and the rest recyclables. These wastes contribute to Green House Gas (GHG) emissions and leave a garbage footprint. The waste management practices and procedures used in Nigeria also contribute to GHG emissions and these include transporta...

Thousands of traders under umbrella shades in Nigerian markets have no safe water, hygiene or sanitation. There is therefore a great need to develop a simple and low cost device for harvesting rain water in the markets. Two umbrellas of diameters 1.2m and 1.9m were sourced locally and used to fabricate a rainwater harvester. Water samples from rain...

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 an experimental study design with laboratory analysis, printed circuit boards (5 kg) of obsolete television were ground and sieved to obtain 2 mm particle size. Chemical leaching of copper using different concentrations of nitric acid (1 mol, 3 mol, 5 mol and 7 mol) was carried out at varying time intervals (0 h, 12 h, 24 h and 48 h). Leachate o...

This study explored potassium recovery from agroforestry wastes that may be a cheap alternative to imported ones. The wastes: Plantain Peel (PP), Coconut Fibre (CF), Coconut Shell (CS), Cocoa Pod (CP), Sugarcane Bagasse (SB), Sawdust (SD) and four common wood-fuel species - Antiaris toxicaria (Wd1), Cordia millenii (Wd2), Khayas senegalensis (Wd3)...

This study investigated water and sanitary conditions of a typical faculty of Public Health building, University of Ibadan, Nigeria. A cross-sectional study was conducted and 108 consented students and staff members were interviewed using a semi-structured questionnaire. Fifteen (15) toilet facilities with 45 rooms were also observed using an obser...

Aims: The study was carried at the Idiroko Border Town in Ogun Southwestern Nigeria, a popular border known for movement of goods and service, an international border town a gateway for many ECOWAS countries is chosen known for movement of smuggled goods and services. The study was aimed at the proliferation of canned alcoholic and non alcoholic dr...

The environmental effects of e-waste disposal are drawing increasing attention throughout the world. The crude recovery methods being used in the developing world expose people to a host of toxic materials and contaminants. The objective of this study was to characterize electronic waste emanated from television printed circuit boards for their ele...

Exposure to compromised indoor air is one of the factors affecting the health and productivity of workers in the workplace. Studies have proved that the number of related health complaints from workplace has increased in recent years. Indoor air quality and perceived health effects experienced by occupants of selected offices and classrooms in the...

In Nigeria, there are no sewage treatment plants hence liquid wastes are managed in an indiscriminate manner. Sullage gets into drains and flows into rivers and streams. Human excreta are managed separately through ventilated improved toilets, pit toilets or septic tanks. In some areas like markets and other public places, excreta are mixed up with...

The previous studies on poor waste management failed to reveal its constraints on the development but rather concentrated on the impact of development on waste management. This study aims at documenting the challenges of waste management on social economic development of Abuja Municipal Area Council (AMAC) so as to recommend appropriate measures fo...

This study assessed the influence of organo-phosphorus (OP) Diazinon pesticide on adult tilapia fish (Oreochromis niloticus) in a semi static renewal bioassay for 30 days. Adult fish were acclimatized to laboratory conditions for 7days and then exposed to varying sub-lethal concentrations of diazinon (1.0, 2.5, 5.0, 7.5 and 10.0 mg/l) for 30 days a...

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...

The knowledge of leachates’ physico-chemical characteristics is very important in determining the level of leachate pollution of the receiving water bodies. This study investigated the effects of leachate from an organic fertilizer plant at Alesinloye market, Ibadan on the nearby stream water. Data were collected, using an observation checklist and...

Wastes in abattoir environment have been a great concern to public health authorities in Nigeria. The objective of this study is to integrate the management of abattoir wastewater into the composting technique at Alesinloye market waste recycling complex, Ibadan. The study design was exploratory with laboratory analysis. Direct measurement with spe...

In Orita-Aperin, Nigeria and its environs, the inhabitants dispose of their wastes beside roads, in open spaces, and in water bodies. There is no information relating the demographic characteristics and perceptions of the community residents to their waste management practices. This study was, therefore, designed to document effects of demographic...