Open Journal of Environmental Research (ISSN: 2734-2085)最新文献_第2页

HEAVY METAL POLLUTANTS AND MICROBIAL CONTAMINANT IN DRINKING WATER FROM WASH BOREHOLES IN PANTISAWA, YORRO L.G.A. OF TARABA STATE 塔拉巴州约罗L.G.A.潘蒂沙瓦洗井饮用水重金属污染物和微生物污染物

Open Journal of Environmental Research (ISSN: 2734-2085) Pub Date : 2022-05-11 DOI: 10.52417/ojer.v3i1.349

K. Bello, B. H. Yesufu, U. Abdulrahim, I. Ibrahim

{"title":"HEAVY METAL POLLUTANTS AND MICROBIAL CONTAMINANT IN DRINKING WATER FROM WASH BOREHOLES IN PANTISAWA, YORRO L.G.A. OF TARABA STATE","authors":"K. Bello, B. H. Yesufu, U. Abdulrahim, I. Ibrahim","doi":"10.52417/ojer.v3i1.349","DOIUrl":"https://doi.org/10.52417/ojer.v3i1.349","url":null,"abstract":"Borehole water remains a source of potable water in Nigeria. Therefore, regular monitoring of the safety of drinking water cannot be over-emphasized. Hence the need to study the safety of water in wash borehole from Pantisawa Yorro Local Government of Taraba State, Nigeria. A total of 15 samples from wash boreholes were randomly collected aseptically using sterilized bottles and igniting with a flame lighter on the surface of the water outlet from the five different zones (Pantisawa Main Market YM, Kapazang YG, Dola YD, Kallau YK and Zabi YZ) of Pantisawa. The pour plate technique was used to ascertain microbial load while trace metals in water samples were determined using Atomic Absorption Spectroscopy (AAS) PG-990. The total bacteria coliform count in the borehole water samples ranged between 1.00×106 cfu/ml and 9.00×105 cfu/ml which generally exceeded the World health organization (WHO) standard limit of 1.0 x 102 cfu/ml for water. The most prevalent or predominant bacteria is Staphylococcus aureus with 40% distribution occurrences from four sample sites (YG, YM, YD and YK). E.coli had a 20 % distribution while Bacillus spp, Enterococcus spp, Salmonella spp, Streptococcus spp, Staphylococcus and Shigella spp showed low percent distribution. The trace metal analysis for the water revealed the absence of Pb in all the water samples analyzed, Zn, Fe, Mn and Cu were below the admissible limits for all the sites except for Fe in sites YG which fall above the standard. All other elements (Ni, Cd, As and Co) were above the threshold limit set by National Standard for Drinking Water Quality (NSDWQ) and the World Health Organization (WHO) respectively. Thus, the presence of pollutants and microbial contaminants may have serious health risks to the people using such water for drinking and other domestic activities.","PeriodicalId":166614,"journal":{"name":"Open Journal of Environmental Research (ISSN: 2734-2085)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130857264","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

PHYSICOCHEMICAL COMPOSITION AND HEAVY METAL DETERMINATION OF SELECTED INDUSTRIAL EFFLUENTS OF IBADAN CITY, NIGERIA 尼日利亚伊巴丹市工业废水的理化成分和重金属测定

Open Journal of Environmental Research (ISSN: 2734-2085) Pub Date : 2021-10-06 DOI: 10.52417/ojer.v2i2.270

O. O. Okoyomon, H. A. Kadir, Z. Zango, U. Saidu, S. Nura

{"title":"PHYSICOCHEMICAL COMPOSITION AND HEAVY METAL DETERMINATION OF SELECTED INDUSTRIAL EFFLUENTS OF IBADAN CITY, NIGERIA","authors":"O. O. Okoyomon, H. A. Kadir, Z. Zango, U. Saidu, S. Nura","doi":"10.52417/ojer.v2i2.270","DOIUrl":"https://doi.org/10.52417/ojer.v2i2.270","url":null,"abstract":"The rise of heavy metal presence in environmental waters has made it necessary to continuously examine industrial effluents to maintain the quality of the environment. The focus of this study is centered on determining the heavy metal concentrations and some physicochemical parameters in twelve industrial effluents samples collected from various locations across Ibadan city. A composite sampling method was utilized to obtain representative effluent samples of the 12 Industries (categorized into food, beverage, tobacco, plastic, Pharmaceutical, chemical, and allied industries) and borehole samples from around the city were used as control. The effluent samples were digested by nitric acid (HNO3) and analyzed for cobalt (Co), chromium (Cr), copper (Cu), iron (Fe), and lead (Pb) using the atomic absorption spectrophotometric method (AAS). Some physicochemical parameters such as pH (Jenway 3510 pH meter), total dissolved solids (Hanna TDS meter), total suspended solids, and phosphate were determined. The heavy metal mean values were compared with Federal Environment Protection Agency (FEPA) and the United States Environmental Protection Agency (USEPA) standard values shown in table 1. The mean concentrations of heavy metal in the industrial effluent samples were Cu (0.32 mg/L), Pb (0.037 mg/L), Ni (0.50 mg/L), Co (0.037 mg/L), Cd (0.016 mg/L), Fe (54.0 mg/L) and Cr (0.44 mg/L). It was found that Chemical and allied industries have the highest concentration for metals such as Fe (128 mg/L), Ni (1.1 mg/L), and Cu (0.27 mg/L) while Cr (0.0067 mg/L) and Co (0.08 mg/L) were obtained in the Food/Beverage and pharmaceutical industries respectively. Conclusively, the industries around the Ibadan city stand as potential contributors to pollution, hence a periodical and continuous assessment effort are recommended.","PeriodicalId":166614,"journal":{"name":"Open Journal of Environmental Research (ISSN: 2734-2085)","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134157807","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

AN ASSESSMENT OF PERCEPTION OF WASTE-PICKERS AND RISK-PROTECTIVE BEHAVIOUR FROM SELECTED DUMPSITES IN OGUN STATE NIGERIA 对尼日利亚奥贡州选定垃圾场拾荒者的看法和风险保护行为的评估

Open Journal of Environmental Research (ISSN: 2734-2085) Pub Date : 2021-09-21 DOI: 10.52417/ojer.v2i2.266

A. Amosu, A. Tella

{"title":"AN ASSESSMENT OF PERCEPTION OF WASTE-PICKERS AND RISK-PROTECTIVE BEHAVIOUR FROM SELECTED DUMPSITES IN OGUN STATE NIGERIA","authors":"A. Amosu, A. Tella","doi":"10.52417/ojer.v2i2.266","DOIUrl":"https://doi.org/10.52417/ojer.v2i2.266","url":null,"abstract":"Waste-pickers experience situations which place them at high risk of developing morbidities mainly external and internal injuries. The present study investigated the waste-pickers perception of waste-handling and risk-protective behavior from chosen dumpsites in Ogun State, Nigeria. This study adopted a cross-sectional design and a multi-stage sampling technique, this was used to choose 60 waste-pickers. A structured and validated questionnaire was used for data collection. Data was analyzed using descriptive statistics. Educated waste-pickers had elementary education. The time interval of waste-picking ranged from 1 to 15 years. The majority of the waste-pickers had a poor perception of waste-handling. The majority of the waste-pickers had poor risk-protective behavior. Only 9(15%) reported using personal protective gears every time. The waste-pickers reported that they used the following PPEs; long sleeve shirt 46(22.0%) and trousers 51(24.4%). However, few used trousers 51(24.4%); boot/shoe 43(20.6%) and cap 24(11.5%). Fifty percent of the waste-pickers reported that they washed up after the day’s job. In conclusion, the waste-pickers had poor perception and poor risk-protective behavior. This study recommends that policy makers and charity organizations should educate waste-pickers on the importance of using protective gears and proper waste-handling.","PeriodicalId":166614,"journal":{"name":"Open Journal of Environmental Research (ISSN: 2734-2085)","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114274697","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

PETROGRAPHIC AND PROVENANCE STUDIES OF HEAVY MINERALS IN SANDSTONES FROM IFELODUN, NIGERIA 尼日利亚ifelodun砂岩中重矿物的岩石学和物源研究

Open Journal of Environmental Research (ISSN: 2734-2085) Pub Date : 2021-07-05 DOI: 10.52417/ojer.v2i2.219

A. Adedoyin, J. Atat, E. Ekott

引用次数: 1

PETROGENESIS, MAJOR OXIDES AND TRACE ELEMENTS GEOCHEMISTRY OF MIGMATITE IN AJUBA, KWARA STATE, NIGERIA 尼日利亚夸拉州阿朱巴混辉岩的岩石成因、主要氧化物和微量元素地球化学

Open Journal of Environmental Research (ISSN: 2734-2085) Pub Date : 2021-07-05 DOI: 10.52417/OJER.V2I2.218

A. Adedoyin, A. G. Atat, J. Atat

{"title":"PETROGENESIS, MAJOR OXIDES AND TRACE ELEMENTS GEOCHEMISTRY OF MIGMATITE IN AJUBA, KWARA STATE, NIGERIA","authors":"A. Adedoyin, A. G. Atat, J. Atat","doi":"10.52417/OJER.V2I2.218","DOIUrl":"https://doi.org/10.52417/OJER.V2I2.218","url":null,"abstract":"Petrogenesis, major oxides and trace elements geochemical study was carried out on migmatite in Ajuba. The study area is located on Latitudes 8° 05'N and 8°13'N and Longitudes 5°23'E and 5°30'E. Five rock samples were taken from the migmatite outcrops and used for petrographic and geochemical analyses. The geochemical analysis was done using X-ray Fluorescence Spectrometer technique. The dominant rock type is migmatite; gneiss and granite outcrops were also found in sparse distribution. Ptygmatic folds, which constitute the palaeosome, is the common structure observed on the migmatite rock. The petrographic analysis shows that the migmatite consists of quartz, biotite, plagioclase, hornblende and microcline. The major oxides analysis indicates SiO2 as the dominant oxide with concentration range values (70.71 wt. % - 79.32 wt. %) and average of 74.80 wt. %. Al2O3 (14.98 wt. % - 16.44 wt. %, average: 15.70 wt. %) and Fe2O3 (9.10 wt. % - 15.41 wt. %, average: 12.39 wt. %), K2O (6.67 wt. % - 8.86 wt. %, average: 7.50 wt. %) and CaO (0.49 Wt. % - 4.64 wt. %. average: 2.73 wt. %). P2O5, MnO and TiO2 are less than 1.0 wt. %. The trace elements analysis indicates the concentration distributions: Rb (0.11-0.15 ppm, average 0.13 ppm), Co (0.04-0.17 ppm, average 0.10 ppm). Trace elements ˂ 0.10 ppm are Zn, W, Ni, Cu, V and Pb. From the petrographic and geochemical assessment, the petrogenesis of the migmatite has silica-rich igneous parentage. Moreover, the plots of SiO2-CaO and K2O-SiO2 placed the migmatite on the “upper boundary field of Francisian Greywacke” protolith and Shoshonite series, respectively.","PeriodicalId":166614,"journal":{"name":"Open Journal of Environmental Research (ISSN: 2734-2085)","volume":"51 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132671298","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

PHYSICO-CHEMICAL CHARACTERISTICS OF TIN MINING POND WATER USED FOR IRRIGATION IN PLATEAU STATE, CENTRAL NIGERIA 尼日利亚中部高原州锡矿池塘灌溉用水的物理化学特征

Open Journal of Environmental Research (ISSN: 2734-2085) Pub Date : 2020-12-08 DOI: 10.52417/OJER.V1I2.164

G. M. Mafuyai, M. Ayuba, C. U. Zang

{"title":"PHYSICO-CHEMICAL CHARACTERISTICS OF TIN MINING POND WATER USED FOR IRRIGATION IN PLATEAU STATE, CENTRAL NIGERIA","authors":"G. M. Mafuyai, M. Ayuba, C. U. Zang","doi":"10.52417/OJER.V1I2.164","DOIUrl":"https://doi.org/10.52417/OJER.V1I2.164","url":null,"abstract":"The present work was conducted by monitoring the water from twelve major tin mine ponds water in Plateau State, North Central Nigeria (Bokkos, Barkin – Ladi and Jos – South) used for irrigation. Their quality was assessed in terms of physico-chemical parameters for dry and rainy seasons. The physico-chemical parameters such as; Turbidity, pH, Temperature, Electrical Conductivity (EC), Cation Exchange Capacity (CEC), Total Dissolved Solids (TDS), Total Suspended Solids (TSS), Total alkalinity (TA), Total Hardness (TH), Dissolved Oxygen (DO), Chemical Oxygen Demand (COD), Biological Oxygen Demand (BOD), Phosphate (PO43-), Sulphate (SO42-), Chloride (Cl- ), Fluoride (F-), Sodium (Na+) and Potassium (K+) were investigated to ascertain the water quality for irrigation purposes. Water quality parameters with regards to its use for the purpose of irrigation such as FAO/WHO/FEPA standards satisfy the requirement for use in agriculture. However, turbidity which ranged from18.1 – 27.4 and 15.9 – 18.8, dissolved oxygen 20.9 – 26.3 and 20.2 – 27.4 mg/L, Total alkalinity 101 – 134 and 122 – 167mg/L, total phosphate 6.3 – 8.9 and 6.5 – 10.5 mg/L, BOD 7.4 – 23.8 and 7.2 – 29.2 mg/L, potassium 1.13 – 1.18 and 3.81 – 4.63 mg/L both in dry and rainy seasons, respectively were found to be above the irrigation water standard limits. The study therefore recommends that the mining pond water should be used with caution as some of the parameters are liable to be toxic to the irrigated crops. The positive correlation exhibited among some of the parameters examined is a clear indication of a common relationship between these sources of water.","PeriodicalId":166614,"journal":{"name":"Open Journal of Environmental Research (ISSN: 2734-2085)","volume":"127 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123160117","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

ASSESSMENT OF HEAVY METALS IN OKRA (Abelmoschus esculentus) CULTIVATED THROUGH IRRIGATION, IN MAIDUGURI, NIGERIA 奈及利亚迈杜古里灌溉栽培秋葵重金属含量评价

Open Journal of Environmental Research (ISSN: 2734-2085) Pub Date : 2020-06-26 DOI: 10.52417/OJER.V1I1.117

P. H. Bukar, M. A. Onoja

{"title":"ASSESSMENT OF HEAVY METALS IN OKRA (Abelmoschus esculentus) CULTIVATED THROUGH IRRIGATION, IN MAIDUGURI, NIGERIA","authors":"P. H. Bukar, M. A. Onoja","doi":"10.52417/OJER.V1I1.117","DOIUrl":"https://doi.org/10.52417/OJER.V1I1.117","url":null,"abstract":"The contamination of the environment with heavy metals is one of the challenges that constitute Nigeria’s environmental problem with urbanization being one of the major causes; due to the unavailability of proper waste dumpsites and landfills for infrastructural development thereby resulting in the polluting rivers and streams. The cultivation of vegetables along channels and rivers that transcend major cities have been a source of concern globally in recent decades due to accumulation of heavy metals and introduction of heavy metals into the food chain. This study therefore assessed the level of concentration of heavy metals namely; Aluminum, Iron, Lanthanum, Manganese, Chromium, Rubidium, Antimony, Scandium, Barium, Samarium and Zinc in Okra (Abelmoschus esclentus) samples obtained on farmlands along the bank of river Ngadda and Alau dam cultivated through irrigation. The samples were analyzed using instrumental neutron activation analysis (INAA) analytical technique with the aim of assessing their level of accumulation with heavy metals. The objective was to ascertain the food safety status of the vegetable by comparing the values obtained with maximum permissible limit (MPL) recommended by FAO/WHO for vegetables. The study results show that the concentration levels ranged from below detection limit (BDL) for Aluminum, Chromium, and Antimony (843 ± 16 ppm, 1.3 ± 0.2 ppm and 0.26 ± 0.03 ppm respectively) to Barium (7 ± 1.0 to 12 ± 1.0 ppm, Iron 11 ± 0.4 to 303 ± 36 ppm), Lanthanum (0.203± 0.03 to 1.93± 0.05 ppm), Manganese (22.9 ± 0.2 to 40.2 ± 0.2 ppm), Rubidium (7 ± 1 to 13± 1 ppm), Scandium (0.02± 0.00 to 0.05 ± 0.01 ppm), Samarium (0.02 ± 0 to 0.24± 0.01ppm), and Zinc (8± 1.0 to 24±0.1 ppm). This result also indicates that the maximum concentration value of Manganese exceeds the 25.95 ppm value of MPL recommended by FAO/WHO for vegetables therefore the consumption of Okra (Abelmoschus esclentus) cultivated from the study site has a potential health risk due to the presence of Manganese above recommended value.","PeriodicalId":166614,"journal":{"name":"Open Journal of Environmental Research (ISSN: 2734-2085)","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127712558","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