Journal of environmental informatics letters最新文献

{"title":"A Linear Chance-Constrained Mixed-Integer Programming Model for Optimizing Regional Electric Power Systems under Carbon Constraints","authors":"X. Yu, C. Z. Huang, J. P. Chen, B. Luo, Y. Y. Liu","doi":"10.3808/jeil.202300115","DOIUrl":"https://doi.org/10.3808/jeil.202300115","url":null,"abstract":"In view of increasing population size and energy consumption, greenhouse gas (GHG) emissions are increasing and are one of the main causes of climate change. The regional electric power system is one of the main sources of carbon emissions, so there is an urgent need to optimize the regional electric power system to meet the Paris Agreement's long-term temperature goal. Therefore, this study provided a linear chance-constrained mixed-integer programming (LCMI) model with the objective of maximizing the total system profit and applying it to the regional electric power system. Chance-constrained programming and mixed-integer programming were integrated into the LCMI model to address input uncertainties. Including five commonly used power generation technologies, namely coal-fired, natural gas-fired, hydropower, wind power, and solar power, the model can provide the optimal electricity generation schemes and capacity expansion plans for different technologies at the regional level to meet the end-user’s needs while meeting the carbon dioxide emission targets under different risk levels. The outcomes of the research will offer decision-makers a framework for optimizing conventional regional electric power systems for their long-term sustainability in environmental and economic development.","PeriodicalId":487474,"journal":{"name":"Journal of environmental informatics letters","volume":"20 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":"136307613","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":"The Effects of Coal Mining on Land Use and Land Surface Temperature: A Case Study of Korba District, Chhattisgarh","authors":"T. Jaiswal, D. Jhariya, N. Kishore","doi":"10.3808/jeil.202300112","DOIUrl":"https://doi.org/10.3808/jeil.202300112","url":null,"abstract":"Coal is one of the most important mineral which is used as a fuel for generating energy in India, with the increasing urbanization and industrialization, need for more fuel is increasing resulting in extraction of coal in more and more amount, therefore in order to fulfil the demand, mining activities has increased a lot with time, besides the extraction of coal, many other minerals are also being extracted for various purposes as well. Increase in such mining activities are leading to adverse change in air, water and land quality, changes in land use land cover pattern and variation in surface temperature, these continuous changes are therefore, im-portant to be studied in order to assess its impact on the environment for suture sustainability and better management of available resources. The current study has been done for the Korba district with special attention towards the mining areas as major area of the district after agricultural and cultivation land is occupied with mining area and related industries which is on spreading at higher pace since last many years, due to which variation in surface temperature and changes in land use pattern can be seen in its vicinity which is increasing with the time. According to the shifting patterns of land use and land cover, both urban regions and coal mine areas have grown by roughly 35 and 12%, respectively. In the central area of Korba district, the number of mines has risen, and the mining area has expanded over the last thirty years. Through a temporal analysis of the data, the study found that between 2000 and 2021, both the mining zones and adjacent urban areas witnessed increased temperatures. This temperature rise can be linked to the expansion of mining operations and the deforestation that accompanies such activities.","PeriodicalId":487474,"journal":{"name":"Journal of environmental informatics letters","volume":"5 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":"136307837","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":"Assessment of Performance and Emission Characteristics of Compression Ignition Engine Using Diesel and Diesel Biodiesel Blends: Experimental and Simulation Studies with Data Analysis Techniques","authors":"M. S. Bhusnoor, S. Nandurkar, V. Gurunathan, J. Mehta, S. R. Nikam, I. Siddavatam, S. S. Bhusnoor","doi":"10.3808/jeil.202300109","DOIUrl":"https://doi.org/10.3808/jeil.202300109","url":null,"abstract":"Control of air pollution has more concern due to its adverse effect on health and the environment. The increase in air pollution is due to the utilization of fossil fuels to satisfy the energy demand. Exhaust emissions from internal combustion engines are one of the major contributors to environmental pollution, hence control of the same at and after the source is most important, which is the focus of the present study. This study primarily focuses on the use of biodiesel as an alternative fuel to substitute partially diesel fuel, which is one of the promising solutions to counter the adverse effects of engine emissions. The present study comprises three stages. Initially, experiments were conducted on a diesel engine (5 HP, 1500 rpm, water-cooled, and direct injection) using both diesel and biodiesel blend (B20, 80% diesel, and 20% biodiesel) to assess the performance and emission parameters at various engine loads, while maintaining an engine speed (1500 rpm) constant. In the second stage, a Simulink model was created to validate the engine performance and emission parameters obtained during the experimental study. Lastly, data analysis techniques were employed in the third stage to facilitate decision-making based on the acquired data, ensuring a certain level of confidence and accuracy. This study utilizes both univariate and bivariate data analysis techniques to interpret the experimental data obtained from the engine. From the theoretical analysis, it is observed that there is a good agreement between the experimental and predicted values of performance and emission parameters of the engine. From the data analysis it is observed that when the engine is fueled by B20 fuel, there is an increase in NOx emissions by approximately 8 ~ 11% and CO2 emissions by approximately 7 ~ 17% in comparison with diesel fuel for the entire range of engine loads. Conversely, there is a decrease in unburned hydrocarbon (UBHC) emissions by 1.27 ~ 29.6% and CO emissions by 13 ~ 42% in comparison with diesel fuel for the entire range of engine loads. Furthermore, the use of biodiesel results in a 6 ~ 17% increase in fuel consumption compared to diesel fuel while maintaining the same power output. Based on these observations, it can be concluded that biodiesel is one of the best alternative fuels for enhancing both the engine's performance and emission characteristics. Moreover, it offers a means to control vehicular air pollution effectively.","PeriodicalId":487474,"journal":{"name":"Journal of environmental informatics letters","volume":"99 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":"136307616","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 Novel Risk-Based Quantifiable Approach to Biosecurity Measures in Biofloc Units of West Bengal, India: Implications for Consumer Safety","authors":"A. Biswas, A. Bardhan, G. Dash, D. Mukherjee, K. B. Sanyal","doi":"10.3808/jeil.202300110","DOIUrl":"https://doi.org/10.3808/jeil.202300110","url":null,"abstract":"A novel risk-based weighted scoring system was developed taking the risk of biosecurity measures of each biofloc technology (BFT) unit in two aquaculturally influential districts, North and South 24 Parganas, West Bengal, India, into account. The current study was carried out over a 6-month period to observe the incidence of Aeromonas veronii and Escherichia coli in biofloc units of these districts along with a questionnaire-based survey on biosecurity measures employed there. Moreover, the correlation between the total heterotrophic bacterial counts (THBCs) in water and gut with the physicochemical parameters of water was also analyzed. The physico-chemical parameters of water in the BFT units were maintained optimally for Nile tilapia culture. A significant positive correlation was observed between the THBCs of water samples and the dissolved oxygen (DO) of Panchpota unit, whereas a significantly negative correlation was observed between the THBCs of water and gut samples collected from Basirhat and Ashoknagar units. The prominence of E. coli in biofloc units of South 24 Parganas suggested possible faecal contamination and lower biosecurity measures being implemented implying at the threats of consumer safety. The grading system, on the other hand, might be viewed as a beneficial instrument for monitoring the biosecurity level of biofloc units over time and pointed out that West Bengal biofloc farmers paid more heed to internal biosecurity than external biosecurity measures.","PeriodicalId":487474,"journal":{"name":"Journal of environmental informatics letters","volume":"48 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":"136307836","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":"Role of Informal Waste Workers for Sustainable Waste Management in Nigeria and Nepal","authors":"A. Khanal, A. R. Aroyehun, A. Garba, M. B. Ibrahim, P. Adewale, S. Giri","doi":"10.3808/jeil.202300114","DOIUrl":"https://doi.org/10.3808/jeil.202300114","url":null,"abstract":"Informal waste workers (IWWs) play a vital role in recovery, disposal and recycling of waste materials. This study examines the current solid waste management practices in Nigeria and Nepal, with a particular focus on the roles of IWWs in effective waste management. Through comprehensive secondary literature reviews, including journal databases, books, reports, and websites, this study highlights the inadequate solid waste management systems in both countries, resulting in limited reuse of generated waste. Common challenges related to waste collection, transportation, sorting, processing, and final disposal were identified in Nigeria and Nepal. The important role played by IWWs in waste management activities, such as collection, sorting, recovery, and recycling, is evident. However, the lack of appropriate legislation addressing their involvement serves as a major hindrance. This study also presents key findings on Nigeria’s waste generation, recycling rates, and reliance on the informal sector, as well as Nepal’s municipal solid waste composition, recycling rates, and the significant role played by informal waste workers. The study emphasizes the need for inclusive waste management policies, strengthened waste collection and segregation systems, investment in recycling infrastructure, and enhanced collaboration among government agencies, waste management companies, and informal waste workers. Enforcing existing legislation and providing support to IWWs, including improved working conditions and social protection measures, are essential steps toward improving waste management practices. The study concludes by highlighting the importance of research, innovation, and international cooperation in developing sustainable waste management solutions for Nigeria and Nepal.","PeriodicalId":487474,"journal":{"name":"Journal of environmental informatics letters","volume":"99 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":"136307622","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":"Impact Assessment of Wet and Dry Spell on Agriculture Productivity of Chhattisgarh, India","authors":"D. Tandel, S. Verma, K. Kumar, M. K. Verma","doi":"10.3808/jeil.202300108","DOIUrl":"https://doi.org/10.3808/jeil.202300108","url":null,"abstract":"The impact of global warming on the hydrological cycle specifically changes in precipitation patterns and their impact on agriculture in the Chhattisgarh region, the study examines historical rainfall data from 1986 to 2021 and divides the area into 27 sub-divisions for a thorough examination. The study distinguishes between wet and dry spells by using a threshold value of 2.5 mm. To assess the likelihood of wet days, the Markov Chain Monte Carlo (MCMC) model is used, and a correlation analysis finds that a proba¬bility range of 55 to 65% correlates to the maximum agricultural productivity. According to the findings, the best time for the greatest crop yield in the study area is during the rainy season (MJJASO). Farmers are urged to start planting in the second or third week of June to coincide with the onset of rainfall, allowing crops to use rainwater from July through August. For the research area, the period from the end of June to the beginning of October is rated as the most favorable for agricultural operations. Overall, this study improves our understanding of climate conditions, particularly rainfall patterns, and its findings provide useful insights for the agricultural sector and other stakeholders.","PeriodicalId":487474,"journal":{"name":"Journal of environmental informatics letters","volume":"6 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":"136307838","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}