International journal of environmental science and development最新文献

{"title":"Influence of Urban and Residential Areas on Surface Water Quality in the Vietnamese Mekong Delta Coastal Province","authors":"N. Giao, Nguyen Hong Thao Ly","doi":"10.18178/ijesd.2023.14.4.1439","DOIUrl":"https://doi.org/10.18178/ijesd.2023.14.4.1439","url":null,"abstract":"This study was conducted to assess the impact of residential and urban activities on surface water quality in Ben Tre province in 2021. Water quality data were collected in the dry and rainy seasons at 15 locations for evaluating the parameters of temperature, pH, dissolved oxygen (DO), salinity, turbidity, biochemical oxygen demand (BOD), chemical oxygen demand (COD), total suspended solids (TSS), ammonium (N-NH4+), nitrate (N-NO3−), orthophosphate (P-PO43−), iron (Fe), coliform using national technical regulation on surface water quality (QCVN 08-MT: 2015/BTNMT, A1) and surface water quality index (VN_WQI). Principal component analysis (PCA) and cluster analysis (CA) methods were used to evaluate sampling sites and identify key parameters and potential pollution sources. The results showed that TSS, BOD, COD, N-NH4+, P-PO43−, Fe and coliform are pollutants significantly affect surface water quality in residential and urban areas. Salinity, nutrients, heavy metals and microorganisms had high values in the dry season, while turbidity, suspended solids, dissolved oxygen, and organic matter were higher in the rainy season. Water quality was assessed from moderate to very good indicated by VN_WQI index. PCA results revealed that five key factors explaining 87.2% of the variation and 12 main parameters (temperature, salinity, turbidity, TSS, DO, BOD, COD, N-NH4+, N-NO3−, P-PO43−, Fe and coliform) affecting water quality. CA results showed that the current monitoring locations can be reduced from 15 locations to 12 locations, which could save 20% of monitoring costs. Future study should focus on investigating concrete sources of water pollution for appropriate management measures.","PeriodicalId":13980,"journal":{"name":"International journal of environmental science and development","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67454347","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}

{"title":"Variation of Surface Water Quality in Cu Lao Dung Island, Soc Trang Province, Vietnam","authors":"N. Giao, Lepnova Mi","doi":"10.18178/ijesd.2023.14.3.1435","DOIUrl":"https://doi.org/10.18178/ijesd.2023.14.3.1435","url":null,"abstract":"The study aims to evaluate variation of surface water quality in canals in Cu Lao Dung district, Soc Trang province, Vietnam using multivariate statistical methods. Sixteen surface water samples with the parameters of pH, total suspended solids (TSS), dissolved oxygen (DO), biological oxygen demand (BOD), chemical oxygen demand (COD), NH4+-N, NO2−-N, PO43−-P, Cl−, Fe, coliform were used for the assessment. The results showed that the surface water in the study area was contaminated with microorganisms, salinity and acidity, and nutrient. The concentrations of coliform, Cl−, Fe, TSS and NO2−-N were higher than the specified limits by 4.17, 2.04, 1.91, 1.28 and 1.10 times, respectively. The four principal components could explain up to 81.40% of the total variance of surface water quality. The main water pollution sources could be from natural (rainwater runoff, saltwater intrusion, erosion) and man-made activities from domestic and agricultural activities (livestock, aquaculture, cultivation), industry and navigation activities. Cluster analysis divided surface water quality into two groups by the difference in BOD, COD, NH4+-N, NO2−-N, Fe, coliform and pH. Pearson correlation results demonstrated that only BOD or COD should be monitored since it is mutually predictable. Specific sources and its contribution should be further studied for effective surface water quality management in the study area.","PeriodicalId":13980,"journal":{"name":"International journal of environmental science and development","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67454604","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}

{"title":"Diversity and Succession of Perennial Trees in the Rehabilitation Areas of a Limestone Mine, Saraburi Province, Thailand","authors":"Wathinee Suanpaga, Rossukorn Majan, Sakhan Teejuntuk, Roongreang Poolsiri","doi":"10.18178/ijesd.2023.14.5.1451","DOIUrl":"https://doi.org/10.18178/ijesd.2023.14.5.1451","url":null,"abstract":"This study aimed to investigate the structure and composition of plant community to i) identify tree species that can colonize, grow, and form communities and ii) identify species under natural succession whose seedlings can be used in forest rehabilitation. Experimental plots of size 40 m × 40 m were established in 13-, 10-, and 5-year-old rehabilitation areas (13YRA, 10YRA, and 5YRA), where characterized as flatted, sloped, and benched areas, respectively. The survey found 24 genera, 12 families, and 25 species of plants. Plant species that were found in all plots were Zollingeria dongnaiensis Pierre., Pterocarpus macrocarpus Kurz., Albizia lebbek (L.) Benth., and Azadirachta indica A. Juss.) which can potentially grow well in several conditions of post-mining areas. The 13YRA plot had the most significant number of naturally regenerating species (11 species) as the area was next to a natural forest or buffer zone and had been under restoration for the most prolonged period. The community succession of the rehabilitation plots relative to the natural forest was relatively slow. Nonetheless, the pioneer species can help to improve the environmental factors to optimum levels for the natural succession of the plant community. This can also be useful while selecting pioneer species for restoring areas previously used for limestone mining and help reduce the time for succession in terms of increasing the species composition.","PeriodicalId":13980,"journal":{"name":"International journal of environmental science and development","volume":"112 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136258968","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}

{"title":"A Review of Municipal Waste Management with Zero Waste Concept: Strategies, Potential and Challenge in Indonesia","authors":"E. Wikurendra, nour Salah abdeljawad, I. Nagy","doi":"10.18178/ijesd.2023.14.2.1427","DOIUrl":"https://doi.org/10.18178/ijesd.2023.14.2.1427","url":null,"abstract":"Municipal waste management is still a significant problem for solid waste issues in Indonesia. Only 60 to 70% of the waste generated is disposed of in landfills, the rest is dispersed in different areas. The potential for leachate pollution, greenhouse gases, and a waste of non-renewable natural resources can occur due to municipal waste management problems not being optimal. Municipal waste management needs a holistic concept that would include upstream to downstream stages. This paper comprehensively reviews municipal waste management with a zero waste concept based on management, development, measuring, implementations, strategies, potentials, and challenges in Indonesia. The zero waste concept offers waste management, starting with waste elimination, recycling, reduction, and recovery of used goods. Several municipalities around the globe, such as Canberra, Adelaide (Australia), Stockholm (Sweden), Nova-Scotia (Canada), and San Francisco (United States), have decided on targets for zero waste cities. Indonesia is still implementing waste management that accentuates disposal in landfills, so there needs to be a literature study related to the management, development, measuring, implementations, strategies, potentials, and challenges of Indonesia’s zero waste concept.","PeriodicalId":13980,"journal":{"name":"International journal of environmental science and development","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67453757","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}

{"title":"Investigating the Ligninolytic Potential of Bacteria Isolated from a Decayed Wood Sample in Egypt","authors":"Prince Hotor, A. Hassanin, Mitsuo Yamamoto, Yukie Saito, A. Abdel-Mawgood","doi":"10.18178/ijesd.2023.14.3.1431","DOIUrl":"https://doi.org/10.18178/ijesd.2023.14.3.1431","url":null,"abstract":"Lignin is a natural polyphenol material found in complex with cellulose and hemicellulose in every terrestrial and some aquatic plant species. They are recalcitrant and prevent easy access to cellulose; an energy-rich, versatile, promising biomaterial for several eco-friendly and cheap products. The lignin-degrading potential of microbes isolated from degraded wood in an environment in Egypt was investigated. In this study, four bacteria were screened using a methylene blue decolorization test, growth on media with lignin as carbon source, and cellulolytic screening using CMC-Congo red test. The screened isolates were used to treat sorghum stem stalks to ascertain the level of degradation of the lignin content. The four bacterial isolates were positive to the decolorization of methylene blue with percentage decolorization: (23%, 8%, 34%, and 24%) after 24 hrs. respectively. Similarly, the four isolates were able to grow on minimal salt media with lignin as carbon source. The optical densities values measured ranged from (0.030–0.165, −0.040–0.080, 0.040–0.121, −0.039–0.054) after 12 h for the four bacterial isolates, respectively. Also, the four bacterial isolates showed negative results for the cellulase test. FT-IR spectrum for the bacterial-treated sorghum stalks revealed a reduction in peaks at wavelengths indicative of lignin functional groups. Similarly, proximate analysis of the lignocellulose content after treatment recorded were extractives (E) (9, 9, 13.5, 9.5, and 10) %, hemicellulose content (H) (29.5, 26.0, 31, 26, and 30) %, Klason lignin (L) (39, 31, 33, 24, and 26) %, and cellulose (C) (22.2, 33.5, 21.3, 40.5, and 33.5) % for control and the four bacterial isolates, respectively. The p-values estimated from the average values for the extractive and hemicellulose content were not significantly different, whiles that of Lignin and Cellulose was significantly different. The four bacterial isolates showed potential for having ligninolytic enzymes for lignin depolymerization.","PeriodicalId":13980,"journal":{"name":"International journal of environmental science and development","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67453969","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}

{"title":"Recovery of the Tambobamba Watershed after Environmental Zoning and Monitoring Using Vegetation Indices","authors":"Zósimo Solano-Velarde, Bimael J. Quispe-Reymundo, Ronald H. Révolo-Acevedo, Uriel R. Quispe-Quezada, umberto Dax Bonilla-Mancilla, L. P. Quispe-Quezada","doi":"10.18178/ijesd.2023.14.3.1437","DOIUrl":"https://doi.org/10.18178/ijesd.2023.14.3.1437","url":null,"abstract":"Environmental zoning (EZ) in a watershed is intended to analyze the socioeconomic and biophysical parameters and design potential areas of intervention for the management and sustainability of natural resources, thereby improving people’s quality of life. EZ is incomplete without soil and water conservation techniques and management (SW/mct) to remediate natural environments. In this study, the Tambobamba watershed—during and after EZ—was analyzed in terms of socioeconomics, biophysics, and SW/mct, and monitored according to vegetation indices (VIs). To determine the socioeconomic situation, a rapid rural survey was conducted. To design biophysical maps, each area of the watershed was evaluated. The EZ was designed in 2018, under the demands and basic needs of the population. For monitoring in 2017, 2019, and 2021, the VIs were applied. Population density and poverty levels were low, economic activity was high, there was no university education, and basic services and communication routes were scarce. The watershed presented four climates, two natural domains, a glacial surface, six life zones, eight physiographic zones, two taxonomic orders of soils, and twelve geological classifications. The land is dominated by unused areas, the dominant slope was steep and had four types of HLCUs. Watershed remediation after S-W/mct showed that SAVI increased by 0.01, MSI increased by 0.8, EVI remained constant, NDWI increased by 0.06, and NDVI increased by 0.02. After performing the EZ, we affirmed that the Tambobamba watershed is in a slow recovery.","PeriodicalId":13980,"journal":{"name":"International journal of environmental science and development","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67454616","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}

{"title":"Greenhouse Gas Emissions from Deboned Milkfish Production in Thailand","authors":"Prisna Pianjing","doi":"10.18178/ijesd.2023.14.5.1445","DOIUrl":"https://doi.org/10.18178/ijesd.2023.14.5.1445","url":null,"abstract":"Milkfish (Chanos chanos) is one of the fisheries products that are cultured among countries in Southeast Asia. Milkfish processing, particularly deboned milkfish, is available in the market and the demand of this product is increasing as a protein source. The increase of deboned milkfish demand in Thailand stimulates production units to expand their production line. However, the official information about the greenhouse gases (GHGs) emissions of milkfish rearing and deboned process is still unknown. The purposes of this study were to evaluate the GHG emissions from the production of deboned milkfish. The result revealed that CO2 emission was the major GHG of the deboned milkfish production. The CO2 emission from all units was 16.47 kg and the main source of emission was the use of electricity. The N2O emission of all units was 4.99 kg and the major source of emission was the ebullition from milkfish ponds. Emission of CH4 of all units was 0.06 kg and the main source of emission was the ebullition from milkfish ponds. The emissions of N2O or NOX exhibited the highest global warming potential in terms of kgCO2 eq. This finding suggests that improvement of fish ponds environment particularly the microbial activities in the bottom of the ponds should be considered. Good practice of feeding process, water quality control and maintaining the water depth in the pond can help to reduce the GHG emission. Application of alternative energy such as wind and solar energy can help to reduce the use of electricity and the reduction of CO2 emissions.","PeriodicalId":13980,"journal":{"name":"International journal of environmental science and development","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136258964","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}

{"title":"Enhancing Air Quality Prediction Accuracy Using Hybrid Deep Learning","authors":"T. T. Quynh, T. N. Viet, Hang Duong Thi, Kha Hoang Manh","doi":"10.18178/ijesd.2023.14.2.1428","DOIUrl":"https://doi.org/10.18178/ijesd.2023.14.2.1428","url":null,"abstract":"PM2.5 (Particulate Matter) and PM10 are the most common pollutants, and the increasing of concentration in the air will threaten people’s health. The machine learning method has recently been of particular interest to many researchers due to its effectiveness in air quality prediction models. Many solutions employing deep learning-based techniques such as Convolutional Neural Networks (CNN), Long Short-Term Memory (LSTM), and hybrid CNN-LSTM models to enhance air quality prediction accuracy have been developed. This paper proposes a hybrid Encoder STM model for predicting the next day to the next five days’ PM2.5 and PM10 concentrations in Hanoi. Additionally, we proposed five extended features to increase the accuracy of prediction. Then other models, namely the LSTM model and the Bidirectional LSTM model, are also considered for PM2.5 and PM10 concentration prediction. Our results show that the proposed approaches outperform other state-of-the-art deep learning-based methods on both Mean Absolute Error (MAE) and Root Mean Square Error (RMSE) due to low error and the small number of features.","PeriodicalId":13980,"journal":{"name":"International journal of environmental science and development","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67454019","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}

{"title":"Recharging the Freshwater Coastal Aquifer of Sidi Kirayr Area Using Sustainable Infiltration Trenches","authors":"Medhat M. H. ElZahar, M. F. M. Amin","doi":"10.18178/ijesd.2023.14.2.1424","DOIUrl":"https://doi.org/10.18178/ijesd.2023.14.2.1424","url":null,"abstract":"Egypt is considered an arid country and depends mainly on the Nile River and groundwater reservoirs to supply water for drinking and various uses. The northwestern coastal zone is one of the regions that rely heavily on groundwater and rainwater for drinking and irrigation. As a result of changes in climate and the rise in sea level, the increase in seawater intrusion is growing. Furthermore, groundwater exploitation and increased pumping of some wells installed in this area have a negative impact on the amount of water in the region’s subterranean reservoirs. One of the approaches suggested for managing freshwater lenses floating on top of seawater from saltwater intrusion in this region is to recharge the aquifer lenses with fresh water. This can be done either by injection wells or by use of groundwater mounds, i.e., infiltration trenches. Due to the expected higher cost operation of injection wells, it is interesting to study the recharge of freshwater lenses through the use of groundwater mounds. Studies have been carried out in the past on the Sidi Kirayr area in terms of recording the water table levels and the amount of rainfall before and after the rainy season. However, we propose using an environmentally sustainable economic solution to recharge the underground reservoirs through the use of rainwater instead of letting it run off into the sea. In this respect, an infiltration trench is designed to recharge the aquifer in the Sidi Kirayr area. Two design types for the trench are proposed, with the geometrical calculations of the appropriate dimensions. The trenches are suggested north and south of the asphalt road in the area of Sidi Kirayr, providing that the trenches can be recharged by rainfall or surplus water when being available from other sources.","PeriodicalId":13980,"journal":{"name":"International journal of environmental science and development","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67454128","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}

{"title":"Chemical Characteristics of Exchangeable Al, Fe, Mn, and Inorganic P Fraction Ultisols at Forest, Dry Land and Rice Fields Land Use in Jasinga, Indonesia","authors":"Erlina Rahmayuni, Syaiful Anwar, B. Nugroho, L. T. Indriyati","doi":"10.18178/ijesd.2023.14.4.1438","DOIUrl":"https://doi.org/10.18178/ijesd.2023.14.4.1438","url":null,"abstract":"Different land use at the study site such as forest, dry land and rice fields originating from the same soil type, affects the presence of various phosphorus (P) fractions in the soil profile. The purpose of this study was to study the chemical characteristics of Al, Fe, Mn, exchangeable and inorganic P fractions of the soil on the Ultisol soil profile using forest, dry land and rice fields in Jasinga. Soil samples were taken on three horizons (Ao or Ap, AB and B) at profiles of forest soil and dry land, while in paddy fields taken at a depth of 0–20 cm, 20–40 cm and 40–60 cm from the ground surface. The chemical properties of the soil analyzed were soil pH, C-organic, exchangeable-Al, exchangeable-Fe, exchangeable-Mn and P fractionation. The results showed that the soil in the study site had a cleavage texture with a pH range of very acidic to slightly acidic. The highest exchangeable-Al levels were found in forest land at 433 ppm, the highest exchangeable-Fe was in rice fields at 0.019 ppm and the highest exchangeable-Mn was in dry land use at 0.063 ppm. The significant correlation of the (Ca, Mg)-P fraction with soil pH of selected chemical properties on dry land showed that this fraction would increase with increasing pH and vice versa would decrease with increasing exchangeable-Al and exchangeable-Mn.","PeriodicalId":13980,"journal":{"name":"International journal of environmental science and development","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67454507","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}