A case study in China, utilizing a hybrid approach, investigates the development of low-carbon transportation systems. This approach blends Criteria Importance Through Intercriteria Correlation (CRITIC), Decision-Making Trial and Evaluation Laboratory (DEMATEL), and deep learning features. A precise, quantitative evaluation of low-carbon transportation advancement is offered by the suggested technique, along with the identification of key influencing factors and an analysis of the interconnectedness within these factors. TRULI The CRITIC weight matrix calculation of the weight ratio helps to diminish the subjective interpretation within the DEMATEL approach. The weighting results undergo a correction process, employing an artificial neural network, to achieve more accurate and objective weighting. Employing a numerical example originating from China, we validate our hybrid approach by conducting a sensitivity analysis to ascertain the effect of critical parameters and assess the performance of our hybrid method. In summary, the suggested methodology presents a fresh approach to evaluating low-carbon transport growth and pinpointing crucial elements within China's context. By applying the results of this study, policymakers can craft sustainable transportation systems in China and abroad.
Global value chains have profoundly reshaped the landscape of international trade, economic growth, technological progression, and the global emissions of greenhouse gases. cell biology Analyzing panel data from 15 industrial sectors in China over the period 2000-2020, this research assessed the relationship between global value chains, technological innovation, and greenhouse gas emissions through a partially linear functional-coefficient model. Subsequently, the autoregressive integrated moving average model was applied to project the greenhouse gas emission trajectory of China's industrial sectors during the period from 2024 to 2035. Analysis of the results revealed a negative correlation between greenhouse gas emissions and global value chain position, along with independent innovation. Nevertheless, the effect of foreign innovation was the opposite. The partially linear functional-coefficient model's results pointed to a decrease in the inhibitory influence of independent innovation on GHG emissions with progress in the global value chain position. Foreign innovation's positive effect on greenhouse gas emissions augmented, then waned with improved global value chain placement. Considering the prediction results, greenhouse gas emissions are expected to show an upward trend from 2024 until 2035. Industrial carbon dioxide emissions are forecasted to reach a maximum of 1021 Gt in the year 2028. China's industrial sector anticipates reaching its carbon-peaking goal via proactive elevation of its position in the global value chain. Addressing these problems will unlock China's potential within the global value chain's development opportunities.
Environmental concerns regarding microplastic distribution and pollution, as emerging contaminants, are significantly impacting both biota and human health globally. While numerous bibliometric studies have explored microplastics, the scope of these investigations often focuses on particular environmental mediums. This study aimed to analyze the growth pattern of research related to microplastics and their distribution within the environment, employing a bibliometric approach. Using the Biblioshiny package in RStudio, a data analysis was performed on microplastic research articles retrieved from the Web of Science Core Collection, encompassing publications from 2006 to 2021. This study's findings underscored the diverse range of microplastic remediation techniques, including filtration, separation, coagulation, membrane technology, flotation, bionanomaterials, bubble barrier devices, and sedimentation. In the present research, 1118 documents were compiled from the literature, with author-document pairings and document-author pairings amounting to 0308 and 325 respectively. During the period from 2018 to 2021, an impressive growth rate of 6536% was achieved, highlighting substantial progress. The period under consideration witnessed China, the USA, Germany, the UK, and Italy as the leading nations in terms of published material. The MCP ratios of the Netherlands, Malaysia, Iran, France, and Mexico were strikingly high, contributing to a collaboration index of 332. Policymakers are predicted to gain valuable insights from this study in their efforts to address the microplastic pollution problem, researchers can find targeted areas for study, and identify suitable collaborators for future research ventures.
Available at 101007/s13762-023-04916-7, the online version includes additional resources.
Reference 101007/s13762-023-04916-7 for the supplementary materials included with the online document version.
India's current endeavors are centered on the installation of solar photovoltaic panels, with inadequate prioritization given to the forthcoming problem of handling solar waste. The country's lack of sufficient photovoltaic waste regulations, guidelines, and operational infrastructure could result in improper disposal methods such as landfilling or incineration, endangering both human health and environmental sustainability. Using the Weibull distribution function, projections for India's waste generation under a business-as-usual scenario indicate 664 million tonnes and 548 million tonnes by 2040, stemming from early and regular losses. A meticulous examination of worldwide end-of-life policies and legislation concerning photovoltaic modules is undertaken in this study, exposing gaps in existing knowledge and needing further assessment. Employing a life cycle assessment approach, this paper scrutinizes the environmental impact of discarding end-of-life crystalline silicon panels in landfills, juxtaposing it with the lessened environmental burden resulting from material recycling. Solar photovoltaic recycling, coupled with the reuse of recovered materials, has demonstrably reduced the impact of future production, potentially achieving a 70% reduction. Consequently, carbon footprint measurements, using a single score derived from IPCC data, predict lower avoided burden values specifically related to recycling (15393.96). The landfill approach (19844.054 kgCO2 eq) is contrasted with this alternative method. The equivalent amount of carbon dioxide emissions, measured in kilograms (kg CO2 eq). This study's findings shed light on the crucial role of sustainable photovoltaic panel management at their disposal, at the end of their useful life.
Subways' air quality significantly influences the health of those who utilize and work within the system. biomarker discovery Public areas within subway systems have been the primary site for PM2.5 concentration testing, leaving a significant knowledge deficit regarding PM2.5 levels in the context of workplaces. Few investigations have calculated the total inhaled PM2.5 exposure for passengers, using actual, moment-by-moment changes in PM2.5 levels experienced while they are traveling. To further understanding of the preceding issues, this study initially measured PM2.5 levels at four Changchun subway stations, with the measurements covering five workrooms. A measurement of passengers' PM2.5 inhalation was taken during their 20-30 minute subway commute, and the inhalation rates for each segment were determined. Public areas witnessed PM2.5 concentrations fluctuating between 50 and 180 g/m3, correlating significantly with outdoor PM2.5 levels, as the results confirm. While workplace PM2.5 levels averaged 60 g/m3, they displayed a reduced sensitivity to concurrent outdoor PM2.5 concentrations. Passengers, during a single commute, cumulatively inhaled around 42 grams of pollutants when outdoor PM2.5 concentrations were measured between 20 and 30 grams per cubic meter, and roughly 100 grams when the PM2.5 level was in the range of 120 to 180 grams per cubic meter. Inside train carriages, commuters endured the most significant PM2.5 inhalation exposure, contributing approximately 25-40% of the total commuting PM2.5 exposure; this was a direct result of prolonged time spent and high PM2.5 concentrations in these enclosed environments. Improving the carriage's airtightness, and filtering the fresh air intake, are key to enhancing the air quality inside the carriage. The daily inhalation of PM2.5 by staff averaged 51,353 grams, a level substantially exceeding that of passengers by a factor of 5 to 12. Workplace air purification systems, coupled with staff reminders about personal protective measures, can contribute to improved employee health.
Pharmaceuticals and personal care products can pose risks to human health and ecological balance. Specifically, wastewater treatment facilities frequently identify emerging contaminants that interfere with the biological treatment process. Relatively less costly to implement and operate than more recent treatment technologies, the activated sludge process stands as a tried-and-true biological method. Pharmaceutical wastewater treatment employs the membrane bioreactor, a sophisticated approach incorporating a membrane module and a bioreactor, demonstrating excellent pollution control results. Evidently, membrane fouling persists as a major challenge in this process. Anaerobic membrane bioreactors can, in addition, address intricate pharmaceutical waste, reclaiming energy and producing nutrient-rich wastewater for irrigation purposes. Examining wastewater composition reveals that high organic matter levels in wastewater promote the implementation of inexpensive, low-nutrient, low-surface-area, and effective anaerobic treatments for the breakdown of medications, thereby lessening environmental pollution. Nevertheless, researchers have sought to enhance biological treatment by integrating hybrid processes, combining physical, chemical, and biological methods to effectively eliminate diverse emerging contaminants. The operating costs of pharmaceutical waste treatment are reduced due to bioenergy generation by hybrid systems. To ascertain the most suitable treatment technique for our research, this document presents a compilation of biological treatment methods cited in the literature, encompassing activated sludge, membrane bioreactor technology, anaerobic procedures, and hybrid approaches that combine physical-chemical and biological methods.