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Bioaccumulation and Elimination of Ivermectin by Eisenia foetida (Savigny 1826) Earthworms 蚯蚓对伊维菌素的生物积累和消除
American Journal of Environment Studies Pub Date : 2023-04-21 DOI: 10.47672/ajes.1426
L. Iglesias, C. Saumell, M. Junco, J. Sallovitz, A. Lifschitz
{"title":"Bioaccumulation and Elimination of Ivermectin by Eisenia foetida (Savigny 1826) Earthworms","authors":"L. Iglesias, C. Saumell, M. Junco, J. Sallovitz, A. Lifschitz","doi":"10.47672/ajes.1426","DOIUrl":"https://doi.org/10.47672/ajes.1426","url":null,"abstract":"Purpose: Bovine and equine faeces are commonly used to produce vermicompost of Eisenia foetida earthworms as a soil fertility enhancer. In animal health, ivermectin (IVM) is frequently used for parasite control. However, IVM is eliminated mainly by faeces, which raises environmental concerns. Little is known about the transfer of IVM by the earthworms´ activity. In this work the accumulation of IVM in E. foetida worms cultured in vermicompost containing IVM and the ability of the worms to release IVM to a drug-free substrate were evaluated. \u0000Methodology: The acute toxicity test (72 h) of IVM and two bioassays, accumulation (A) and elimination (B), with E. foetida earthworms were performed in the current work. In A, the vermicompost produced was a mixture of equine and bovine faeces, the latter added with IVM 3,000 ng/g. Worms and substrates were sampled between 1 and 28 days post treatment (dpt). In B, worms obtained at 28 dpt in A were transferred to a substrate without IVM and sampled between 1 and 14 days later. Samples of worms and substrates were analysed using High Performance Liquid Chromatography (HPLC). \u0000Findings: There was no worm mortality in the toxicity test. In assay A, E. foetida worms bio-accumulated up to 26.8% of the IVM present in the substrate. When worms from assay A, were moved to IVM-free substrate, they released 84% of the bio-accumulated IVM during the first day. \u0000Recommendations: This study highlights that IVM bio- accumulated by earthworms and releasing in residue-free substrates represents a contamination risk, especially in farms that are minimising the use of chemical compounds. \u0000 ","PeriodicalId":228652,"journal":{"name":"American Journal of Environment Studies","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126027986","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Species Composition and Structure of Habitats Exploited by Elephants (Loxodonta Africana Cyclotis) in the Campo Maan Forest, South Region, Cameroon 喀麦隆南部Campo Maan森林大象栖息地的物种组成和结构
American Journal of Environment Studies Pub Date : 2023-04-03 DOI: 10.47672/ajes.1402
Ayemeley Betrand Ayuk, Nkwatoh Athanasius Fuashi, M. E. Maurice, K. P. Bumtu
{"title":"Species Composition and Structure of Habitats Exploited by Elephants (Loxodonta Africana Cyclotis) in the Campo Maan Forest, South Region, Cameroon","authors":"Ayemeley Betrand Ayuk, Nkwatoh Athanasius Fuashi, M. E. Maurice, K. P. Bumtu","doi":"10.47672/ajes.1402","DOIUrl":"https://doi.org/10.47672/ajes.1402","url":null,"abstract":"Purpose: The main objective of this study was to determine the species composition and structure of habitats exploited by elephants in the Campo Maan Forest. \u0000Methodology: Using the transect methods, purposively, 1km transects were laid along identified feeding tracts in various habitats. 15 transects with each having 4 quadrates of 30x30m were established at interval of 220m summing up to a total of 5.4 hectares of land covered for the study within which data was collected. In the quadrates, all vascular plants with dbh >10cm (diameter at breast height about 1.3m above the ground) were measured and identified. In each quadrate, four subplots of 15mx15m were placed at the corners to sample understory and herbs. \u0000Findings: Results reveal a total of 1113 individual trees with DBH of ≥ 10 cm identified and measured belong to 49 species from 24 families. Fabaceae was the most dominant family of plants with 425 individual trees counted with Caesalpinioideae being the dominant specie type (116); followed by Calpocalyx heitzii (92). Lowland evergreen forest (Casalpinioideae) recorded the highest number of tree species counted (462, 41.5%) of the total tree species. Trees DBH varies between 10 and 64 cm with mean values of 29.45±11.48 cm, 23.3±7.759 cm, 27.69±9.189 cm and 25.75±14.056 cm for Lowland evergreen forest (Casalpinioideae), Lowland evergreen forest (mixed), Coastal forest (Sacoglotis gabonensis)  and Coastal forest (mixed)  respectively. A large number of trees recorded heights of above 30m though it was higher for Lowland evergreen forest (mixed), Coastal forest (Sacoglotis gabonensis) and the Coastal forest (mixed). For the understory, the dominant specie types are Scaphopetalum blackii, Palisota ambigua, Asystasia macrophylla, Podococcus barteri, Microdesmis puberula, Heistera pavifora, Haumania danckelmaniana, Alchornea floribunda all counting 9 and 10 individual Trees). Results revealed highly positive and significant correlations between trees DBH and height (r=0.84, p=0.000). The Shannon’s diversity index indicates that the tree diversity for all habitats are fairly even with Coastal forest (Sacoglotis gabonensis) having a value of 4.73. The Coastal forest (mixed) shows the highest rate of basal area (76.39); followed by Coastal forest (Sacoglotis gabonensis) (41.50) and Lowland evergreen forest (Casalpinioideae) (32.26), all indicating high basal areas. \u0000Recommendation: Further studies on habitat fragmentation are needed to assess its effects on elephant movement within the area.","PeriodicalId":228652,"journal":{"name":"American Journal of Environment Studies","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125848344","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Perception of Local Population of Manda National Park (Chad) on use of Vultures and the Impact of their Activities on the Conservation of Species 乍得曼达国家公园当地居民对秃鹫使用的看法及其活动对物种保护的影响
American Journal of Environment Studies Pub Date : 2023-03-05 DOI: 10.47672/ajes.1363
Ghislain Noé Kougoum Piebeng, G. Z. Mofor, S. Tamungang, Djekadjim Djekillamber, Wangsang Daksala, M. Bilal, A. Téguia
{"title":"Perception of Local Population of Manda National Park (Chad) on use of Vultures and the Impact of their Activities on the Conservation of Species","authors":"Ghislain Noé Kougoum Piebeng, G. Z. Mofor, S. Tamungang, Djekadjim Djekillamber, Wangsang Daksala, M. Bilal, A. Téguia","doi":"10.47672/ajes.1363","DOIUrl":"https://doi.org/10.47672/ajes.1363","url":null,"abstract":"Purpose: This study aimed at analysing the perceptions of the local population and the impact of their activities on the conservation of vultures. \u0000Methodology: This study was conducted at the periphery of Manda National Park (MNP) in the province of Moyen-Chari, in southern Chad.  Semi-structured questionnaires were administered in 24 villages and involving 300 people belonging to 7 different ethnic groups (Sara, Gouleye, Mbaye, Ndaye, Ngambaye, Peul and Sarakaba). A stratified random sampling was carried out for this purpose. Chi-square test was used to compare the different levels of local population perception. \u0000Findings: This study found that six (6) species of vultures were encountered in the study area, all belonging to the family Accipitridae, Order Accipitriformes with a predominance of Hooded Vulture, Necrosyrtes monachus (52.33%). Agricultural (70.32%), logging (24.4%) and pastoral (19.32%) practices were mainly prevalent in the local populations. The main threats to vulture populations in the study area include:  food scarcity (95%), deforestation (57.33%), poaching (9.33%), use of vultures in the tradition (fetishes, cultural events) (7.66%) and the consumption of vultures (7%). \u0000Contribution to theory and practice: This study made it possible to show the attachment of the population bordering the MNP to certain species of vultures in particular the white-headed vulture, Trigonoceps occipitalis and N. monachus of the study area through the totem, the myths and other clan or religious prohibitions; a factor that contributes to good human-bird cohabitation. This study also made it possible to assess the impact of human activities on vultures and offers opportunities to improve vulture conservation methods by involving local populations in conservation plans. The local populations of the PNM should be sensitized by the authorities in charge of wildlife management, on the importance of vultures in cleaning the environment, essential for health, and on the ecological importance of this taxon. \u0000 ","PeriodicalId":228652,"journal":{"name":"American Journal of Environment Studies","volume":"85 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125103181","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Urban Solid Waste Management 城市固体废物管理
American Journal of Environment Studies Pub Date : 2022-11-02 DOI: 10.47672/ajes.1268
S. Javed, Faheem Malik
{"title":"Urban Solid Waste Management","authors":"S. Javed, Faheem Malik","doi":"10.47672/ajes.1268","DOIUrl":"https://doi.org/10.47672/ajes.1268","url":null,"abstract":"This review article creates awareness among people to manage solid waste by using different methods because if these wastes are not properly disposed then different environmental problems are created. Books and journals were utterly examined for this study. Waste is by product which is produced by human activities through different resources. Population growth, urbanization and exceeding economy are factors due to which its management is a challenge. Incineration, composting, pyrolysis, gasification and landfilling are different procedures which are used to manage wastes. Current strategies for treatment of solid waste are used to reduce or to recover solid waste, useful products are produced by waste through these processes which are then used in different ways. \u0000 ","PeriodicalId":228652,"journal":{"name":"American Journal of Environment Studies","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122838019","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Effect of Hyperthermia on Photosynthetic Pigments of Some Selected Fern Taxa of Sitamata Wild Life Sanctuary, Rajasthan 高温对拉贾斯坦邦Sitamata野生动物保护区部分蕨类植物光合色素的影响
American Journal of Environment Studies Pub Date : 2022-11-02 DOI: 10.47672/ajes.1266
S. Vinay, Bhawnani Jaya
{"title":"Effect of Hyperthermia on Photosynthetic Pigments of Some Selected Fern Taxa of Sitamata Wild Life Sanctuary, Rajasthan","authors":"S. Vinay, Bhawnani Jaya","doi":"10.47672/ajes.1266","DOIUrl":"https://doi.org/10.47672/ajes.1266","url":null,"abstract":"Rajasthan, the state is situated in the north western part of India and covers as area of 3, 42, 274 sq.km. Despite the hostile climatic conditions of the state, pteridophytes which otherwise known as shade and moisture loving plants. Sitamata wild life sanctuary is located at southwest region of Rajasthan. Different species of pteridophytes in this region exhibit significant variation in thermal stability of their photosynthetic pigments of some pteridophytic flora of Sitamata wild life sanctuary, Rajasthan. Studies reveal that total chlorophyll contents are maximum in Ceratopteris thallictroides and Selaginella repanda and minimum in Ampelopteris prolifera. The other species range between these two. Total carotenoid contents were found maximum in Cheilanthes bicolor and minimum in Selaginella repanda. These observations suggest that species with greater resistance to drought possess higher quantity of carotenoids and show lesser degradation in their chlorophyll pigments during stress conditions. Thus, Ampelopteris prolifera, Cheilanthes bicolor and Christella dentata are most resistant to heat and drought conditions while A. capillus-veneris, Ceratopteris thallictroides and Selaginella repanda are the least resistant taxa to heat and drought conditions.","PeriodicalId":228652,"journal":{"name":"American Journal of Environment Studies","volume":"76 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126090392","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
An Assessment of Landslides along Mountain Forest Roads: Bamenda Ring Road Segment through Bafut and Befang Forests on the Cameroon Volcanic Line. 山林公路沿线山体滑坡的评价:喀麦隆火山线上穿越巴法特和贝方森林的巴门达环线路段。
American Journal of Environment Studies Pub Date : 2022-08-24 DOI: 10.47672/ajes.1160
E. Amah, V. Katte, R. Ghogomu,  V K Kamgang
{"title":"An Assessment of Landslides along Mountain Forest Roads: Bamenda Ring Road Segment through Bafut and Befang Forests on the Cameroon Volcanic Line.","authors":"E. Amah, V. Katte, R. Ghogomu,  V K Kamgang","doi":"10.47672/ajes.1160","DOIUrl":"https://doi.org/10.47672/ajes.1160","url":null,"abstract":"Purpose: Landslides cause distress in communities worldwide, disrupt socio-economic activities and cause damage to roads infrastructure. The purpose of this study was to undertake a comprehensive assessment of the recurrent landslide events along the Bamenda Ring Road (BRR) segment through the Bafut and Bafang mountain forests in the North West Region of Cameroon, located along the Cameroon Volcanic Line (CVL). \u0000Methodology: Topographic and geologic map studies, foot-borne surveys, hydro-meteorological data analysis and soil permeability tests were employed to the study. Results at the time of this study reveal 35 new slide scarps in Bafut and 16 along the Befang forests. \u0000Findings: The topography culminates between 670-1300 m altitude, while more than 50% of the slopes in the study area are convex, the rest are convexo-linear, concave, while a few of them are linear. Natural slope gradients vary from 35-600, while prevalent number of slides occur on sub-vertical road-cut embankments. The slides are classified as small volume, short distance-travelled shallow translational than rotational debris flows. Base rocks of the study zone are essentially coarse-grained leucocratic granites with quartz, feldspars, biotite and muscovite minerals which appear liable to weathering. Meanwhile, residual soil samples are permeable, have increased pore water pressure and has a high liquefaction tendency due to its high clay content. The absence of recent or historic earthquakes suggests that causative factors of landslides could be linked to steep gradients, lithology, deep weathering profiles, considerable affinity for water of the weathered materials and prolonged rainy seasons. As such we highlight the contribution of the landslide hazard with the direct risk based on the extensive deterioration of the road characterized by multiple road defects and reduced socio-economic activities and the indirect risk linked to difficulties in the movement of goods and persons and management of resources. \u0000Recommendations: This study recommend present officials to improve on their documentation and skills in monitoring rainfall and landslide hazard and manage disaster emergency; sensitize the population on landslide hazard and associated risk. There is need for government to establish a road authority for the management of landslide hazard, disaster relief and the land inside and outside the road.","PeriodicalId":228652,"journal":{"name":"American Journal of Environment Studies","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129029960","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Chemical Analysis of DG Cement’s Municipal Waste Used for Refuse Derived Fuel 用于垃圾衍生燃料的DG水泥城市废弃物的化学分析
American Journal of Environment Studies Pub Date : 2022-08-18 DOI: 10.47672/ajes.1152
S. Bilal
{"title":"Chemical Analysis of DG Cement’s Municipal Waste Used for Refuse Derived Fuel","authors":"S. Bilal","doi":"10.47672/ajes.1152","DOIUrl":"https://doi.org/10.47672/ajes.1152","url":null,"abstract":"Purpose: Rampant population growth particularly in South Asian region has turned solid waste management a challenging task. Huge resources are squandered for collection and disposal without considering the recyclable and energy potential. However, in Pakistan, some companies are utilizing waste as refuse derived fuel (RDF) – a process to separate combustibles from municipal waste in order to generate energy. \u0000Methodology: For RDF analysis, DG cement RDF plant near Lakhodair landfill site Lahore was selected in order to collect RDF raw waste, which are then converted in to RDF pellets for further analysis. The chemical analysis consisted of proximate analysis (moisture content, volatile combustion matter, fixed carbon & ash content) and net calorific value (NCV) along with heavy metal analysis. \u0000Findings: Upon analysis, percentage of volatile combustible matter (VCM) tetra pack and jute was about 84% followed by other waste and thermo-pole 78%. Fixed carbon (FC) of wrappers and paper waste was about 24 and 16% whereas Ash content (AC) was recorded highest in textile, shoppers, thermos-pole and foam with 14% while rest 10%. The moisture content (MC) of other waste type followed by shopping bags and jute was found highest among other component such as 3.5%, 24% and 20.9% respectively. Moreover, the highest calorific value was obtained in plastic wrappers (61.26 MJ/kg) whereas lowest was observed in jute (6.4 MJ/kg). For heavy metal analysis such as Chromium (Cr), Lead (Pb), Cadmium (Cd) and Copper (Cu), Atomic Absorption Spectrophotometry (AAS) was used; highest concentration of copper was observed in the foam waste (45.5 mg/kg) and the lowest value was observed in thermos-pole (8.5 mg/kg). All the results were in EURITS standards range. \u0000Recommendation: Therefore, in the light of above analysis, it was confirmed that collected waste is highly feasible for RDF in DG cements.","PeriodicalId":228652,"journal":{"name":"American Journal of Environment Studies","volume":"120 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114551860","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Sustainable Strategies for Solving Perennial Water Crisis in Enugu Using Infiltration/Sump Technology 利用渗透/污水池技术解决埃努古长期水危机的可持续战略
American Journal of Environment Studies Pub Date : 2022-07-11 DOI: 10.47672/ajes.1116
Philips Nnajiofor Egbo, Stephen Chibuike Anih, Collins Nnamani Obinna
{"title":"Sustainable Strategies for Solving Perennial Water Crisis in Enugu Using Infiltration/Sump Technology","authors":"Philips Nnajiofor Egbo, Stephen Chibuike Anih, Collins Nnamani Obinna","doi":"10.47672/ajes.1116","DOIUrl":"https://doi.org/10.47672/ajes.1116","url":null,"abstract":"Purpose: Perennial water crises is a monster that threatens the very essence of human existence globally. Efforts have been made to stamp out water crises by the provision of pipe borne water, artisanal well, etc but to no avail. Notwithstanding these efforts, a visit to the streets of Enugu showed the excruciating hardship faced by the people as a result of scarcity of portable water. This study aimed at determining the current condition of portable water supply, challenges to sustainable water supply as well as suitability and sustainability of harvesting portable water through infiltration/sump technology adaptation in solving Enugu metropolis water crises. \u0000Methodology: The survey and experimental research methods were used. A total number of 48 water samples were aseptically collected from 3 points on a weekly basis. The points are A: from the flowing Asata River, B: from the infiltration sump and, C: from the locally fabricated water treatment plant. These samples were subjected to physical, chemical and biological analysis to determine the level of impurities, chemical and biological pollutants contained therein. Atomic Absorption Spectrophotometer (AAS) was used to determine the concentration of heavy metals in the water samples. Direct culture plate count was used to determine bacterial load while sample concentration method was used for the microscopic examination. \u0000Findings: The results were presented in tables and analyzed with simple percentages. It was discovered that water supply to Enugu residents has been abysmally low compared to the Enugu State Water Corporation (ENSWC) installed capacity.  Out of the six (6) years under study, the highest annual water production of 6,082,962 m3 representing 12.62% of the installed capacity, supplied to the inhabitants of Enugu metropolis was achieved in the year 2018. The study discovered that the raw Asata River is contaminated with (a) heavy metals, (b) E. coli and Coliforms (c) debris, non-metallic contaminants etc. However, with the application of sump/infiltration technology and minimal treatment the river is a veritable and sustainable alternative to the epileptic pipe borne water supply from ENSWC to the inhabitants. \u0000Recommendation: Adaptation and application of sump/infiltration smart indigenous water harvesting technology in solving the perennial water crisis in Enugu metropolis is recommended. ","PeriodicalId":228652,"journal":{"name":"American Journal of Environment Studies","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133407753","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
An Integrated GIS Method – The Influence of Human Activities on Shoreline Change in Western Indian Small Island States: A Two Centuries Analysis of Urban West Unguja - Zanzibar Shoreline 综合GIS方法——西印度小岛屿国家人类活动对海岸线变化的影响:西恩古加-桑给巴尔城市海岸线的两个世纪分析
American Journal of Environment Studies Pub Date : 2022-05-10 DOI: 10.47672/ajes.1025
Salim Hamad Bakar, S. Islam
{"title":"An Integrated GIS Method – The Influence of Human Activities on Shoreline Change in Western Indian Small Island States: A Two Centuries Analysis of Urban West Unguja - Zanzibar Shoreline","authors":"Salim Hamad Bakar, S. Islam","doi":"10.47672/ajes.1025","DOIUrl":"https://doi.org/10.47672/ajes.1025","url":null,"abstract":"Purpose: Urban areas have a high impact on shoreline changes that are more influenced by human activities rather than natural factors, together with hard structural mitigation and management, which are more practiced compared to other areas. This paper describes shoreline changes of small islands specifically; the shoreline of Urban West of Unguja Island in Zanzibar United Republic of Tanzania. This island has been changed for 174 years in different stages due to human activities including; reclamation of Darajani creek, port expansion at Malindi, Mtoni beach nourishment, sewer and stormwater channeling at Kilimani, construction of walls, groins, jetties, etc.   \u0000Methodology: The study uses an integrated method to analyze and detect changes using a sketch plan survey map of 1846 and 1892, a topographic map of 1907 and 1987, an aerial photo of 2004, Landsat images, and google images of 2019 and 2020. These maps were carefully georeferenced with latitude and longitudes, digitized using ArcGIS and demarcated along the study area supported with ground truth observation to analyze the coastal shoreline changes. \u0000Findings: The results show that the area experiences more accretion rather than retreat, integrated analysis and projections of the overall accretion and retreat for 174 years is 1,527,693.85 m2 (1.53 km2) and -936,135.48 m2 ( -0.94 km) receptively. The average accretion of land from 1846 to 2020 is 8,779.85m2/yr. (0.0088 km2/yr.) and retreat is -5,380.09m2/yr. (-0.0054 km2/yr.). A major accretion was observed and detected during the early 1900s to late 1987 which were major land transformation while other minor development activities were between 2010 to 2020. Sea walls, groins, beach nourishment, mangroves, barrier islands, and islets are major management practices of the shoreline which show a positive impact. \u0000Recommendations: The study finds it more appropriate to use multi datasets as an integrated method to analyze long-term coastal shoreline changes especially when there is limited data.           ","PeriodicalId":228652,"journal":{"name":"American Journal of Environment Studies","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130460799","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
THE IMPACT OF FOOD PACKAGING ON THE ENVIRONMENT AND WAYS OF MANAGING WASTES IN SELECTED GHANAIAN COMMUNITIES 食品包装对环境的影响和管理废物的方式在选定的加纳社区
American Journal of Environment Studies Pub Date : 2021-10-04 DOI: 10.47672/ajes.810
B. Sebbeh
{"title":"THE IMPACT OF FOOD PACKAGING ON THE ENVIRONMENT AND WAYS OF MANAGING WASTES IN SELECTED GHANAIAN COMMUNITIES","authors":"B. Sebbeh","doi":"10.47672/ajes.810","DOIUrl":"https://doi.org/10.47672/ajes.810","url":null,"abstract":"Purpose: The author sought to investigate into how food packaging wastes are handled in the Ghanaian communities, the impact of the wastes on the environment and ways by which the menace can be curbed. \u0000Methodology: The study was descriptive in nature and observation was the main instrument adopted to gather information on the phenomenon of the threat of packaging waste on the Ghanaian environment. Such observations were conducted in parts of the three namely Accra, Kumasi and Sekondi - Takoradi major cities in Ghana. At least, five (5) suburbs in each of the metropolitan areas were studied. \u0000Findings: The study revealed that plastic packaging waste generated in the country is currently the most post-consumer waste. Majority of the consumers in Ghana do not take cognizance of the environmental impacts of the products they consume and thus throw or dump packaging waste products indiscriminately.  They do not care about what will happen to it, to themselves as individuals and to the environment in general. \u0000Unique contribution to theory and Practice and policy: The outcome of the study will enlighten the average Ghanaian on how to manage food packaging waste to help save the natural environment from unnecessary pollution, depletion and extinction of animals and marine habitat. This will enable policymakers in Ghana enact appropriate laws that will ensure the proper handling and management of the waste generated by manufacturers and consumers of food packaging.","PeriodicalId":228652,"journal":{"name":"American Journal of Environment Studies","volume":"72 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131779983","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
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