排序方式: 共有23条查询结果,搜索用时 453 毫秒
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Ajala Oluwaseyi Aderemi Oke Margret Racheal Ajibade Temitope Fausat Ajibade Fidelis Odedishemi Adelodun Bashir Ighalo Joshua O. Ajala Margaret Opeyemi Kumar Pankaj Demissie Hailu Ugya Adamu Yunusa Sulaymon Ishaq Dimeji Silva Luis F. O. 《Environmental science and pollution research international》2022,29(55):82660-82680
Environmental Science and Pollution Research - Heavy metals (HMs) have attracted global attention due to their toxicity, persistence, and accumulation in aquatic fish in the polluted water... 相似文献
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Francis Joseph Eseigbe Victoria Funmilayo Doherty Temitope Olawunmi Sogbanmu Adebayo Akeem Otitoloju 《Environmental monitoring and assessment》2013,185(3):2189-2196
This study investigated the biomarker responses of the earthworm, Eudrilus eugeniae, exposed to sublethal concentrations of benzene, toluene and xylene (BTX) for a time span of 28 days. Lipid peroxidation (LPO) and histopathological alterations were examined. Toxicological evaluations of BTX were carried out against E. eugeniae. On the basis of the 96-h LC50 value, xylene (1.212 mg/kg) was found to be the most toxic followed by toluene (1.335 mg/kg) and benzene (1.896 mg/kg) was the least toxic. The exposure of earthworms to sublethal concentrations (1/10th and 1/100th of 96 h LC50) of BTX premixed with the substrate (loamy and humus soil) induced pathological changes in the clitella such as severe lesion, necrosis and dark brown pigments. The result of the lipid peroxidation assay showed a significant increase in oxidative damage with LPO values ranging from 2.58–7.8 nM/g in exposed animals when compared to 0.07 nM/g in the control group. The findings from this study suggest the use of LPO and histopathology as useful biomarkers of exposure for early detection of petroleum related stress in terrestrial ecosystems 相似文献
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Olalekan John Taiwo Hezekiah Daramola Olaniran Tolulope Osayomi 《The Environmentalist》2012,32(4):405-414
Local perception can be an important resource for assessing and managing climate-related extremes and identifying adjustment strategies unique to specific settings. The objectives of the study are two-fold. Firstly, it examined the perceived causes, exposures and adjustments to seasonal heat events using different residential density areas of Ibadan, Nigeria, as spatial units of analysis. Secondly, it investigated the relationship between heat exposure, built environment, socio-economic and cultural factors. Results show that intense heat from the sun, climate change and absence of rains, among others, was identified as perceived causes. Number of electricity hours, distance from water supply points and the number of neighborhood trees were listed as the three most important factors affecting heat exposure. In addition, there were considerable variations in the perceived causes (F?=?4.86, p?<?0.05), in exposures (F?=?3.61, p?<?0.05), and in adjustments to seasonal heat (F?=?8.75, p?<?0.05) across different residential density areas in Ibadan, Nigeria. The study demonstrates that local knowledge based on the perceptions, exposures and adjustments to seasonal heat waves has the potential in some cases to provide valid inputs into vulnerability and adaptation assessments. 相似文献
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Mohammad Shahidul Islam James S. Bonner Cheryl Page Temitope O. Ojo 《Environmental monitoring and assessment》2011,172(1-4):33-50
Corpus Christi Bay (Texas, USA) is a shallow wind-driven bay which experiences hypoxia (dissolved oxygen < 2 mg/L) during the summer. Since this bay is a very dynamic system, the processes that control the hypoxia can last on the order of hours to days. Monitoring systems installed on a single type of platform cannot fully capture these processes at the spatial and temporal scales of interest. Therefore, we have integrated monitoring systems installed on three different platform types: (1) fixed robotic, (2) mobile, and (3) remote. On the fixed robotic platform, an automated profiler system vertically moves a suite of water quality measuring sensors within the water column for continuous measurements. An integrated data acquisition, communication and control system has been configured on our mobile platform (research vessel) for synchronized measurements of hydrodynamic and water quality parameters at greater spatial resolution. In addition, a high-frequency radar system has been installed on remote platforms to generate surface current maps for the bay. With our integrated system, we were able to capture evidence of a hypoxic event in summer 2007; moreover, we detected low dissolved oxygen conditions in a part of the bay with no previously reported history of hypoxia. 相似文献
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The effects of organic management and landscape context on two highly endemic and important pollinator taxa (bees and monkey beetles) were studied in the Cape Floristic Region (CFR) biodiversity hotspot, where a quarter of the land is intensively managed mostly for grape production. This functional group was chosen as there is concern worldwide over pollinator decline, particularly in regions of high levels of endemism of both flora and fauna such as the CFR. Species richness and abundance of bees and monkey beetles were sampled and compared between organic and conventional vineyards, with natural vegetation as reference habitat. Species richness of monkey beetles, but not the species richness of bees, benefited from organic compared to conventional vineyard management. Our findings support the hypothesis that the effects of landscape context and management may be taxon dependent. Monkey beetles have been suggested as strong indicators of disturbance. These beetles are among the most important pollinator guilds in the CFR, as they help to sustain the endemic vegetation of this region. Protection of the remaining natural habitat in close proximity to farmland is an imperative conservation strategy in this region. 相似文献
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Gyamfi Bright Akwasi Bekun Festus Victor Balsalobre-Lorente Daniel ONIFADE Stephen Taiwo Ampomah Asiedu Benjamin 《Environment, Development and Sustainability》2022,24(10):11852-11870
Environment, Development and Sustainability - This study is motivated by the United Nations Sustainable Development Goals (UN-SDG-7,8,11,12 and 13) on the need for clean and responsible energy... 相似文献
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Temitope Raphael Ayodele Omolola Anuoluwa Adeniran 《International Journal of Sustainable Engineering》2019,12(1):58-69
In this paper, detailed and comprehensive analysis of the technical, environmental and economic benefits of providing adequate water supply using solar PV system for three selected abattoirs (Bodija, Akinyele and Iyana church abattoirs) in Ibadan are presented. First, an estimate of average daily water requirement for slaughtering and cleaning cattle is obtained for each of the abattoir. This was achieved through oral interviews conducted at the different abattoirs to arrive at a reliable estimate. Thereafter, the total water requirement, the water storage capacity and the electrical load requirement necessary for the sizing of solar PV system that will enhance the smooth operation of the abattoir are determined. Some of the key results revealed that the water requirements of the abattoirs are 208,780, 91,632 and 78,590 l/week, respectively. The most suitable submersible pump for the three abattoirs is 60GS50 (5hp, 60gallon/min Goulds series). The cost of pumping water and providing lighting for smooth operation of the abattoirs are $0.23, $0.21 and $0.19, respectively. The results also show that 16,300, 15,200 and 14,600 kg/yr of carbon dioxide as well as 46.37, 43.36 and 41.45 kg/yr of carbon monoxide could be avoided, respectively with the implementation of the project. 相似文献
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Adedayo Adesina Olusola Ademola Sonibare Jacob Diagboya Paul N. Adejuwon Adesuji Famubode Temitope Bello Josiah O. 《Environmental science and pollution research international》2017,24(27):21770-21777
Environmental Science and Pollution Research - Due to the subtle occurrence of environmental polycyclic aromatic hydrocarbon (PAHs) pollution from incinerators, it is seldom considered a... 相似文献
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Aderemi Taiwo Adedoyin Adenuga Adeniyi Abiodun Oyekunle John Adekunle Oyedele Ogunfowokan Aderemi Okunola 《Environmental science and pollution research international》2017,24(20):17116-17126
Environmental Science and Pollution Research - Ceramic foodwares are among the products used by people on daily basis without being cautious of exposures to heavy metals through possible leaching... 相似文献