Improvement Of Environmental Quality Research Articles

The contribution of green technological innovation, clean energy, and oil rents in improving the load capacity factor and achieving SDG13 in Saudi Arabia

This research aims to assess the effects of green technological innovation, renewable energy sources, and oil rents on the load capacity factor in Saudi Arabia from 1988 to 2021. The primary conclusions can be outlined as follows. The combined cointegration and Saikkonen-Lütkepohl cointegration tests reveal long-run relationships between the load capacity factor and the explanatory variables at the 1% significance level. In comparison, the Phillips-Ouliaris test shows evidence of cointegration only at 10%. Moreover, the quantile regression indicates that oil rents adversely impact environmental quality; however, they remain contingent upon environmental conditions. A 1% increase in oil rents results in a decline in environmental quality by 0.025% under poor conditions, 0.036% under moderate/normal conditions, and 0.108% under good conditions. On the contrary, renewable energy consumption and green technological innovation improve environmental quality, irrespective of the prevailing environmental conditions. However, the environmental impacts of renewable energy consumption exceed those of green technological innovation. Results show that a 1% increase in renewable energy consumption leads to a 0.052-0.253% improvement in environmental quality, whereas a 1% increase in green technological innovation results only in a 0.017-0.047% improvement. Finally, population and GDP per capita exert negative and positive implications on the load capacity factor, respectively, while energy intensity has no significant environmental effects. The research findings provide significant insights and suggest policy recommendations to address climate change and meet the targets set out in SDG13.

Green recovery in BRICS economies: The role of mineral resources, energy productivity, and green innovation in sustainable development

Mineral resources are important for economic development, significantly impacting industrial growth and presenting complex challenges such as resource scarcity and environmental sustainability. In this context, the present study explores the linkage between natural resources rents, energy productivity, eco-innovation, and carbon emissions considering BRICS economies. Using data from 1990 to 2021, the result of the present study shows that natural resources rent, and economic growth contribute to environmental pollution, indicating that revenues from natural resources in BRICS economies are used for economic expansion, thus leading to carbon emissions. In contrast, green innovation and energy productivity significantly reduce carbon emissions and improve environmental quality. Similarly, renewable energy supply also contributes to the improvement of environmental quality. Our research highlights the critical need for policies that not only restore natural resources and enhance green innovation to boost energy productivity but also address the negative impact of these innovations on carbon emissions while acknowledging that natural resource rents can exacerbate these emissions.

Co-Financing the Investment Projects in the field of Public Space Transformation

Introduction. It has become a modern trend to improve the quality of the urban environment using a public-private partnership (PPP) mechanism. By finding a balance between the interests of business and the state on the issues of infrastructure renovation, it is possible to boost the investment processes. Therefore, the PPP as a catalyst for the regional, innovative and social development has been studied in the scientific literature since long ago. Although, many authors recognise the prospects of the PPP efficiency, they still note the need to regularly revise the state support methods and tools, i.e. the existing system of measures requires improvement over time. Special attention has been paid to the models of financing the PPP projects and the ways of investment return. However, the PPP development potential in creation (reconstruction) of the park infrastructure has not been duly revealed yet.Materials and Methods. During the research on identification of the features of the park complex transformation projects reconstructed in the frame of a concession business model, the projects were grouped according to the similarity of features. Then, by comparative analysis method, the problems of full recovery of the investment costs were identified in the selected projects. A hypothesis about the need of using the government budget co-financing for the certain concession agreements targeted at solving the various environmental, educational and awareness-raising issues was put forward.Results. The national practices of transformation of the public spaces, such as parks and park infrastructure, have shown that the most optimal form of the PPP is a concession. The investor uses his funds at the design and construction stages of the creation (reconstruction) of the park complexes. At the stage of facility operation, a private party recovers its costs by collecting fees directly from the consumers. It is important that the expected project profitability should be within 15–25%. Due to the changes in the monetary policy, such profitability at the current key rate is hardly ever possible if the park infrastructure includes a variety of capital-intensive buildings and structures designated not so much for commercial but for social purposes. There arise the risks of receiving less income than expected. Therefore, for such projects, it is necessary to develop the measures expanding the ways of investment return. If a park has a complex infrastructure, which includes the large stadiums, museums, cultural and educational centres, i.e. facilities that are difficult to predict as having a high demand and, thus, not expedient for setting the high fees, it is advisable to combine the direct payment for services with the government budget co-financing. Co-financing is implemented through payment of a capital or operational grants. The variants of a grant can be considered depending on the areas of the park activities (educational, cultural, sport). The operational grant is due to reimburse the operational costs on maintaining the special facilities: adjacent embankments, lighthouses, memorials, etc. For the parks that include the indoor pools, large stadiums, museums, concert halls, it is relevant to use the capital grants to return the investments made into these facilities.Discussion and Conclusion. In the current conditions, the public-private partnership is considered as an alternative to government budget investment into the infrastructure facilities. The transformation of the urban public spaces is also involved in this trend, and there are already positive results achieved. A private party, through investing its own capital, gets the opportunity to operate the created object to recoup its investments. But some projects are difficult in this sense, therefore the interest of the business companies to participate in the improvement of the urban environment quality reduces. In the context of the tight monetary policy, the additional state budgetary measures are needed to stimulate private investments.

Application of convolutional neural network for efficient turbulence modeling in urban wind field simulation

Accurate flow field estimation is crucial for the improvement of outdoor environmental quality, but computational fluid dynamics (CFD) based on the widely used Reynolds-averaged Navier–Stokes method has limitations in this regard. This study developed a turbulence modeling framework based on a convolutional neural network (CNN) to model turbulence in urban wind fields. The CNN model was trained by learning the Reynolds stress patterns and spatial correlations with the use of high-fidelity datasets. Next, the model was integrated into the CFD solver to generate accurate and continuous flow fields. The generalization capability of the proposed framework was initially demonstrated on the simplified benchmark configurations. The validated framework was then applied to case studies of urban wind environments to further assess its performance, and it was shown to be capable of delivering accurate predictions of the velocity field around an isolated building. For more complex geometries, the proposed framework performed well in regions where the flow properties were covered by the training dataset. Moreover, the present framework provided a continuous and smooth velocity field distribution in highly complicated applications, underscoring the robustness of the proposed turbulence modeling framework.

The mitigation potential of environmental compensations: a challenge for the carbon neutrality transition

Abstract Carbon neutrality targets introduced at European level set new challenges for the built environment’s transformation. By considering the entire lifecycle of buildings, the integration of nature-based solutions (NBS) into design is increasingly necessary, but sometimes not sufficient to balance CO2 emissions, opening up the need for compensations. Environmental systems are also subject to new anthropogenic pressures arising from urbanisation processes and the effects of climate change. In the face of an increasingly widespread compensatory model based on the carbon credits market, the paper intends to demonstrate the structural, mitigating and regenerative role of environmental compensations, when adequately planned and applied in a site-specific way, in the contexts directly and indirectly affected by interventions. The paper presents an ongoing research activity in which environmental compensations has been quantified and evaluated in their mitigation potential. The added value of the study is the provision of a methodological framework for the quantification of environmental compensations and for the measurement of the contribution of NBS to the achievement of carbon neutrality and their optimal localisation for the improvement of environmental quality.

Synthesis of corn straw based carbon doped Nb2O5 as photocatalysts for Rhodamine B degradation under visible light illumination

Developing efficient visible light photocatalytic materials has always been a challenge for researchers. We have successfully prepared a series of corn straw based carbon doped Nb2O5 with excellent photocatalytic performance under visible light. A series of characterizations were carried out on the synthesized materials, including power X-Ray diffraction (XRD), scan electron microscopy (SEM), nitrogen adsorption, UV–vis diffuse reflectance spectra, X-ray photoelectron spectroscopy (XPS). The photocatalytic performance of the synthesized samples was investigated under visible light irradiation using Rhodamine B as the degradation target. Under visible light irradiation for 30 min, C/Nb2O5 can decompose Rhodamine B by 97.1 %, and the photocatalytic performance remains unchanged after 5 cycles. In the article, the contributions of three active substances involved in the photodegradation of Rhodamine B were studied through scavenger study, and the mechanism of C/Nb2O5 photodegradation of Rhodamine B was analyzed. This research is of great significance for the application of biomass materials and the improvement of environmental quality, and also provides new ideas for designing and synthesizing new composite functional materials.

Dynamic Monitoring and Analysis of Ecological Environment Quality in Arid and Semi-Arid Areas Based on a Modified Remote Sensing Ecological Index (MRSEI): A Case Study of the Qilian Mountain National Nature Reserve

The ecosystems within the Qilian Mountain National Nature Reserve (QMNNR) and its surrounding areas have been significantly affected by changes in climate and land use, which have, in turn, constrained the region’s socio-economic development. This study investigates the regional characteristics and application requirements of the ecological environment in the arid and semi-arid zones of the reserve. In view of the saturated characteristics of NDVI in the reserve and the high-altitude saline-alkali environmental conditions, this study proposed a Modified Remote Sensing Ecology Index (MRSEI) by introducing the kernel NDVI and comprehensive salinity index (CSI). This approach enhances the applicability of the remote sensing ecological index. The temporal and spatial dynamics of ecological and environmental quality within the QMNNR from 2000 to 2022 were quantitatively assessed using the MRSEI. The effect of land use on ecological quality was quantified by analyzing the MRSEI contribution rate. The findings in this paper indicate that (1) in arid and semi-arid regions, the MRSEI provides a more precise representation of surface ecological environmental quality compared to the remote sensing ecological index (RSEI). The high correlation (R2 = 0.908) and significant difference between MRSEI and RSEI demonstrate that MRSEI enhances the accuracy of evaluating ecological environmental quality. The impact of land use on ecological quality was quantitatively assessed by analyzing the contribution rate of the MRSEI. (2) The ecological quality of the QMNNR exhibited an upward trend from 2000 to 2022, with an increase rate of 1.3 × 10−3 y−1. The area characterized by improved ecological and environmental quality constitutes approximately 53.68% of the total area. Conversely, the ecological quality of the degraded areas accounts for roughly 28.77%. (3) Among the various land use types, the improvement in ecological environmental quality within the reserve is primarily attributed to the expansion of forest and grassland areas, along with a reduction in unused land. Forest and grassland types account for over 90% of the total area classified with “good” and “excellent” ecological grades, whereas unused land types represent more than 44% of the total area classified with “poor” ecological grades. Overall, this study provides a valuable framework for analyzing ecological and environmental changes in arid and semi-arid regions.

Government relocation and air pollution: Evidence from China

In the pursuit of sustainable economic development, many cities have initiated the relocation of government offices as a strategy to optimize resource allocation. This study examines the environmental impacts of local government relocations in China between 1999 and 2016, with a focus on PM2.5 concentration data in the areas surrounding the relocation sites. Utilizing a difference-in-differences estimation approach, our findings indicate that (1) relocating local government offices significantly reduces pollution levels in nearby areas, with more pronounced effects closer to the relocation site; (2) environmental quality improvements intensify over time before stabilizing; (3) the relocation reform enhances the overall environmental quality of the entire city; and (4) government site relocations ultimately lead to regional environmental quality improvements by fostering the development of clean industries and reducing industrial pollution emissions. These results underscore the policy significance of green development principles and the spatial optimization of public resources.

Valuing community awareness and willingness to pay for marine environment management: empirical analysis in coastal central region of Vietnam

Vietnam is a country with strengths in marine resources and economy. The coast provides habitats and livelihoods for millions of households but is in decline due to economic activity and climate change. This study’s purpose is to evaluate the awareness of people in the central coastal provinces of Vietnam about marine environmental values and their willingness to pay for the management and improvement of marine environmental quality. The study applied a binary random assessment model and surveyed 980 households in 4 coastal provinces to evaluate community payments. The results show that people have good awareness of tangible environmental values, associated with life and livelihood. They also highly agree with protecting marine environmental values and emphasize passing these values on to future generations. Community payment for sea environment management was estimated at 420 thousand/household/year in parametric model and 398 VND thousand/household/year in non-parametric model. Bid level, income and education are main factors affecting people’s ability to pay. The study also proposes implications for marine environmental management including strengthening community awareness and capacity, establishing financial mechanisms for community-led conservation at the local level, and integrating education marine environmental values for high school students to aim for sustainability in community awareness and behavior.

Long-term vegetation succession enhances the network complexity and stability of soil protozoan communities

Long-term vegetation succession is critical for the improvement of environmental quality and the restoration of ecosystem functions. As key links in the micro-food web, protozoa are widespread in the soil and are important participants in nutrient cycling and energy transfer. However, the effects of vegetation succession on soil protozoan communities compared to those on other soil microbial communities, such as bacteria and fungi, remain largely unknown. Here, a long-term vegetation succession sequence of approximately 160 years was selected to investigate the evolutionary characteristics and drivers of soil protozoan diversity, network stability, and community assembly processes. Soil protozoan alpha diversity increased significantly with vegetation succession, and beta diversity differed significantly between early and late successional stages. Microbial biomass is a key driver of soil protozoan diversity. In addition, the network robustness and complexity of soil protozoa increased significantly and stabilized during late successional stages. Soil microbes played a direct role in protozoan network stability, whereas abiotic factors played an indirect role, reflecting the trophic cascade in soil micro-food webs. The relative contributions of deterministic processes to the community assembly of soil protozoa increased progressively with vegetation succession, owing to multiple eco-selective mechanisms arising from environmental changes. Our results highlight the bottom-up effects of soil microbes on secondary consumer communities during natural restoration, providing new insights into the mechanisms underlying the maintenance of soil micro-food web diversity and stability across environmental gradients.

A Post Occupancy Evaluation of the Space Utilization of Cultural Heritage in Children’s Education: A Case Study of Wuhan’s Historical Districts, China

Cultural heritage has educational value because it provides children with a realistic learning environment and a wealth of educational resources. This study intends to fill a gap in academic research by evaluating the efficiency of utilizing cultural heritage in children’s education. This study uses the Post Occupancy Evaluation (POE) method to create a comprehensive evaluation index system. Through research and analysis of six key elements—inheritance of historical context, improvement in environmental quality, completion of infrastructure, achievement of educational goals, participation in children in activities, and sustainable development—it was discovered that rational utilization of cultural heritage space significantly improves the educational experience and promotes cultural heritage transmission. This study is significant since it provides an empirical foundation for educational practice and serves as a valuable guide for innovative heritage transmission and policy creation. Our findings emphasize the necessity of incorporating educational goals into preserving and revitalizing cultural heritage, advocating for a forward-thinking approach that honors the past while fostering learning and progress for future generations.

Motivating for environmental protection: Evidence from county officials in China

This paper investigates the impact of changes in the officials’ performance evaluation system on ecological environment quality, as well as the effect of ecological improvements on officials’ promotion prospects. Analyses are conducted using the changes in the officials’ evaluation mechanism in China’s ecological function counties in 2013 as a quasi-natural experiment, incorporating a newly developed set of county-level comprehensive ecological environment index data and manually collated data on county leaders. Multiple methods are employed to address issues such as sample selection bias, reverse causality, and heterogeneity of treatment effects. The empirical analysis shows that the adjustment of officials’ performance evaluation indicators contributes to the improvement of ecological environment quality. This effect is more pronounced in regions where GDP evaluation is abolished, regions with lower economic development but better ecological environment foundations, regions closer to provincial capitals, and officials with shorter tenure, younger age, and male gender. The rationale behind this policy is that post-reform improvements in the ecological environment will increase the promotion prospects of officials in ecological function counties, enable these areas to secure additional ecological transfer payments, thereby enhancing their capacity for environmental expenditure, and establish a credible commitment mechanism for central-local contracts. This study not only examines the relationships between political incentives for officials and environmental protection, but also enriches the literature on environmental decentralization, multi-target governance, and environmental political economy.

The Urban Factor: Meta-analysis of Air Pollution and Cancer Incidence

Background: Urban air pollution is a significant environmental health concern associated with various adverse health outcomes, including cancer. Understanding the relationship between urban air pollution exposure and cancer incidence is crucial for informing public health interventions and policy decisions. Methods: A systematic review and meta-analysis will be conducted to investigate the association between urban air pollution exposure and cancer incidence. Eligible studies will be identified through comprehensive searches of electronic databases. Inclusion criteria encompassed studies reporting quantitative data on air pollution exposure and cancer outcomes. Data extraction and quality assessment will be performed according to predefined criteria. Results: The systematic search will be yielded X studies meeting the inclusion criteria for the meta-analysis. These studies, representing diverse geographic regions, employed various exposure assessment methods and included cohort, case-control, and cross-sectional designs. The meta-analysis will reveal a statistically significant association between urban air pollution exposure and overall cancer incidence (p < 0.05). The pooled effect will estimate indicated a X% increased risk of cancer per unit increase in air pollution exposure. Conclusion: Our meta-analysis provides robust evidence of a significant association between urban air pollution exposure and cancer incidence. These findings underscore the urgent need for targeted interventions to reduce air pollution levels in urban areas and mitigate cancer risks. Public health policies focusing on environmental quality improvements are crucial for promoting population health and well-being.

The Impact of Enterprise Technological Innovation on Environmental Performance—An Industry Perspective

With the ongoing advancements in the modern industrial economy, the global ecological environment is encountering a multitude of challenges, prompting the increasing dissemination and global acknowledgment of the concept of sustainable development. Governments have formulated green development strategies aimed at incentivizing enterprises to enhance their environmental performance and mitigate environmental risks. This study utilizes a research sample comprising 3313 firm-level environmental performance scores and primary business data for 276 Chinese enterprises from 2007 to 2017. Based on the empirical evidence from the fixed-effects model, it is evident that technological innovation overall enhances the environmental performance and reduces the environmental risks of Chinese enterprises. Heterogeneity analysis reveals that internal innovation within Chinese enterprises exhibits heterogeneous impacts on environmental performance. The study shows that, compared to enterprises in the primary and tertiary industries, technological innovation in the enterprises of China’s secondary industry has a greater impact on enhancing environmental performance. Furthermore, within the secondary industry, the positive impact of technological innovation on environmental performance is more pronounced for the traditional sectors. Based on these findings, government authorities should actively encourage technological innovation among enterprises and formulate differentiated environmental policies tailored to different enterprises and industries. This research holds significant implications for the implementation of green strategies, enhancement of enterprise competitiveness, achievement of long-term sustainability, and improvement of global ecological environmental quality.

The multidimensional nature of the Environmental Contribution for environmental qualification in São Paulo

This paper describes the conception of the Environmental Contribution instrument in the municipality of São Paulo, with the aim of exploring the multidimensional nature of this instrument, namely: its potential to promote improvements in the city's drainage system, microclimate conditions and biodiversity, as well as encouraging the development of sustainable buildings through certification and promoting environmental quality in the densification process. It also takes stock of the implementation of the instrument in the city of São Paulo between 2016 and 2023, through the project approval reports from the Municipal Urban Planning and Licensing Department (UPLD). In this context, the multidimensional nature of the instrument and its high potential to promote improvements in the city's environmental quality and to contribute to São Paulo's adaptation to the impact of climate change are proven. At the same time, the instrument's scope is limited, and it urgently needs to be improved so that the Environmental Contribution has a wider reach in the territory and is consequently more effective in improving the city's environmental quality.

Chemical Processing Development for Radioactive Minerals Processing Facility: A Circular Economy Model

The minerals and metals industries are vital in the world’s economy, yet their use of resources and waste generation pose considerable issues. The circular economy is a concept that establishes the foundation for economic operations that are carried out to run sustainably and to promote economic welfare, which in turn leads to an improvement in environmental quality. This paper offers a comprehensive literature analysis on the principles and efficacy of circular economy in mineral processing, specifically focusing on radioactive minerals. This research aims to develop a circular economy model that preserves resources, reduces waste production, and complies with regulatory rules on radioactive waste management. The study outlines a clear and structured circular economy model consisting of four modules: sample preparation, decomposition, partial extraction, and total precipitation. Each module integrates energy efficiency, heat recovery, renewable energy, water reuse, and chemical recycling. The validated model provides a roadmap for implementing circular economy principles in processing radioactive materials, contributing to achieving sustainable development goals. The government's agenda in pursuit of the Nationally Determined Contribution (NDC) can be aided by this model. This study suggests that reducing resource use and the volume of material, energy, and waste generated by technological processes can be achieved while still maintaining quality. That concept brings about a change in the mindset of designing a mineral processing installation. Based on the result of this study, further study may be focused on implementing strategies for each module of the studied object.

Reshaping sustainability through climate attention, financial regulations, and energy policy

The United States is classified as “insufficient” by the climate action tracker (CAT), indicating a lack of progress in addressing crucial environmental concerns. This highlights the inadequacy of current policy measures, especially in achieving the sustainable development goal (SDG) 13. In view of this, the present study examines the impact of public climate attention, financial regulations, and energy policy uncertainty on the load capacity factor in the United States. The quarterly data spanning from 2004 to 2021 has been analyzed by employing a unique bootstrap rolling window Granger causality test. The findings confirm that an increase in public climate attention and financial regulations positively affects the load capacity factor, indicating an improvement in environmental quality. Further, it was found that an increase in energy policy uncertainty negatively affects the load capacity factor, indicating environmental degradation. The study highlights policy implications to support the United States in achieving SDG 13.

Urban network noise control based on road grade optimization considering comprehensive traffic environment benefit

A double-decision optimization model based on the road grade optimization strategy and considered comprehensive traffic environment benefit is proposed to control the traffic noise. The upper-level model maximizes the comprehensive traffic environment benefit, including network noise emission and traffic efficiency. Adjusting the emphasis on noise optimization benefits and traffic efficiency in road network planning through setting weights. The lower-level resolves the question of network traffic flow assignment using a stochastic user-equilibrium model. The increase of traffic environment demand, network noise emissions decrease and travel time rises. In the case, with a low environmental requirement (weighting with 1.1), the sound pressure emission of the network decreases by 9.23% with only a 4.01% increase in travel time. Under the high environmental requirement (weighting with 0.2), the sound pressure decreases by 26.8%, but the travel time rises by as high as 30.9%. The network is optimized towards road grade degradation and is the first to optimize the arterial roads. In addition, it is found that the influence of speed on traffic noise is greater than that of traffic volume through case validation. This method proposing traffic noise optimization strategies at the road network planning level provides technical support for the proactive governance of traffic noise pollution and the improvement of traffic sound environment quality.

Small-scale market gardeners’ knowledge, attitudes and practices regarding the use of chemical pesticides in the Kabare territory (South-Kivu) in Eastern D.R. Congo

Damage caused by pests and diseases is one of constraints on crop production for food security. Based on the use of questionnaire and interviews that were conducted in Kabare territory (South-Kivu), this study was carried out to (i) assess farmers practices, attitudes, and knowledge about pesticides use, and (ii) assess the human health and physical environment effects using pesticides. Data was collected from 300 small-scale farmers in study area. Results showed that majority of our respondents were men (59 %) rather than women (41 %) and local knowledge of pesticide use was low (60 %). Education level had a significant influence (p < 0.01) on level of knowledge about pesticide use, time and dose of treatment, method of control, and persistence time. In addition, education level influence significantly farmers' attitudes before and after pesticide treatment (p < 0.05). Pest management control, time of pesticide application, and packaging management method varied significantly with level of local knowledge (p < 0.01). Pesticides use by small-scale farmers has an effect on water, soil, and air quality. It also causes human pathologies such as vomiting, eye irritation, and even loss of life in event of heavy exposure. Inhalation and dermal exposure are main and most dangerous routes of pesticide exposure in our study area, which lacks protective strategies. Finally, use of pesticides disrupts biodiversity through the disappearance of pollinators, predators, parasitoids, and soil microorganisms. Therefore, broad continuity of this study with integration of other scientific aspects would effectively contribute to the improvement of environmental quality.

Does environmental pollution reduce residents’ income? Evidence from CFPS in China

Understanding the relationship between environmental pollution and residents’ income is extremely important for promoting sustained progress and high-quality economic growth. This research examines the impact, mechanism, and heterogeneity of environmental contamination on residents’ earnings by fusing the micro data from China Family Panel Survey with the macro data of government statistics. The results reveal that environmental degradation has a significantly negative impact on residents’ individual income. Further research on the intermediary mechanism finds that environmental pollution plays a harmful role in residents’ income by reducing residents’ subjective well-being and labor employment. Besides, the income effect of environmental pollution is significantly heterogeneous among different regions and differentiated groups. The deteriorating environmental quality widens urban–rural income gap and increases wage inequality of inhabitants in eastern, central, and western regions of China. The gender income gap and the income disparity between different income brackets also expand with environmental deterioration. These findings not only prove that long-term development at the cost of the ecological environment is undesirable, but also demonstrate the important role of the improvement of ecological environmental quality in promoting human well-being.