The Complexity of Space Utilization and Environmental Pollution Control in the Main Corridor of Makassar City, South Sulawesi, Indonesia

Public perceptions of vehicular traffic emissions on health risk in Lagos metropolis Nigeria: A critical survey

The perception and behavior of the public is key in reducing Traffic-related air pollution health burdens which has become an increasingly alarming problem in many cities across the globe. The study assessed the perception of the public about vehicle traffic emissions and the health hazard associated with them in Lagos, Nigeria using structured questionnaires. Multivariate statistical analysis and structural equation modeling were performed to determine the factors that were associated with the participant's perception of traffic air pollution and the health risks it presents. The findings revealed the majority (78.9%) of the respondents were aware of the haze air pollution from vehicles and its adverse effects on health. The regression model showed a significant relationship between age, education status, employment status, road proximity, vehicle ownership and air pollution awareness (P < 0.05). However, the structural equation model SEM revealed that age, gender, marital status, education, employment status, and road proximity showed statistical significance (p < 0.05) and indicated a linear relationship to vehicular emissions perception. The findings suggest the need to increase public education for all ages and especially for roadside residents on the effects of prolonged exposure and long-term effects of transport-related air pollution and associated risk. The result is applicable in many developing cities, especially in Sub-Saharan Africa.

Multi-Scenario Dynamic Simulation of Urban Agglomeration Development on the Northern Slope of the Tianshan Mountains in Xinjiang, China, with the Goal of High-Quality Urban Construction

The construction of high-quality urban agglomeration has become a guiding strategy for future urban development. Based on the current development status of urban agglomeration on the northern slope of the Tianshan Mountains, the concepts of environmental protection, harmonious coexistence, and sustainable development were combined in the present study. Land cover data for 2010 and 2020 as well as data on various driving factors and limiting factors were selected to simulate and forecast the land change of the urban agglomeration under environmental constraints. At the same time, to simulate the natural development scenario, farmland protection scenario, and ecological protection scenario for the land development of urban agglomeration on the northern slope of the Tianshan Mountains in 2030, the future land use simulation and Markov (FLUS-Markov) model and the urban growth boundary (UGB) model were combined. The following conclusions may be drawn from the results. (1) Using the land cover in 2010 to simulate the land cover in 2020, the kappa value was 0.724, the overall accuracy was 82.9%, and the FOM value was 0.245, exhibiting a high accuracy. (2) Under the three scenarios, the degree of expansion varied significantly from 2020 to 2030, but the proportion of construction area remained stable at 3%. Under the natural development scenario, urban land expansion was the most obvious, followed by the farmland protection scenario, while under the ecological protection scenario, construction land expansion was the least obvious. (3) Under the three scenarios, the expansion of construction land was mainly dominated by the encroachment of grassland, and the edge expansion mode was characterized by concentrated contiguous land. (4) The kernel density results show that the urban area exhibited a year-by-year expansion, and the best suitable development area was the surrounding farmland. (5) Under the three scenarios, the delineation of UGB in urban agglomeration at the northern slope of the Tianshan Mountains was reasonable and effective, and it can provide a relevant reference for the government’s future urban development and layout planning.

Advanced catalytic ozonation for degradation of pharmaceutical pollutants-A review

Various chemical treatment techniques are involved in removing refractory organic compounds from water and wastewater using the oxidation reaction of hydroxyl radicals (^•OH). The use of catalysts in advanced catalytic ozonation is likely to improve the decomposition of molecular ozone to generate highly active free radicals that facilitate the rapid and efficient mineralization and degradation of numerous organics. For the degradation of toxic organic pollutants in wastewater, the advanced catalytic ozonation process has been widely applied in recent years. Low utilization efficiency of ozone and ineffective mineralization of organic contaminants by ozone can be remedied with advanced catalytic ozonation. Advanced catalytic ozonation has gained popularity because of these merits. However, homogeneous catalytic ozonation has the disadvantage of producing secondary contaminants from the addition of metallic ions. Heterogeneous catalytic ozonation can overcome this drawback by utilizing metals, metallic oxides, and carbon materials as a catalyst of efficacy and stability. This review discusses various aspects of catalytic ozonation in wastewater treatment of pharmaceutical pollutants, application of catalytic ozonation process in typical wastewater, and prospects in advancing the techniques in heterogeneous catalytic ozonation.

Land Use Change, Urban Agglomeration, and Urban Sprawl: A Sustainable Development Perspective of Makassar City, Indonesia

Urbanization towards the expansion of the city area causes urban sprawl and changes in space use. Furthermore, urban agglomeration towards urban spatial integration causes a decrease in environmental quality. This study aims to analyze (1) land-use change and urban sprawl work as determinants of environmental quality degradation in suburban areas. (2) The effect of urban sprawl, urban agglomeration, land-use change, urban activity systems, and transportation systems on environmental quality degradation in suburban areas. A combination of quantitative and qualitative approaches is used sequentially in this study. Data obtained through observation, surveys, and documentation. The results showed that the expansion of the Makassar City area to the suburbs had an impact on spatial dynamics, spatial segregation, and environmental degradation. Furthermore, urban sprawl, land-use change, urban agglomeration, activity systems, and transportation systems have a positive correlation to environmental quality degradation with a determination coefficient of 85.9%. This study recommends the handling of urban sprawl, land-use change, and urban agglomeration to be considered in the formulation of development policies towards the sustainability of natural resources and the environment of Makassar City, Indonesia.

Community Empowerment and Utilization of Renewable Energy: Entrepreneurial Perspective for Community Resilience Based on Sustainable Management of Slum Settlements in Makassar City, Indonesia

The acceleration of metropolitan city development toward economic growth has an impact on over-urbanization, energy scarcity, slum settlements, and environmental degradation. Slum settlements that are predominantly inhabited by the urban poor will require an increase in the productivity of economic enterprises through the empowerment process. This study aims to analyze (1) community empowerment functions as determinants of the use of renewable energy in handling slum settlement and (2) the effects of community empowerment, utilization of renewable energy, strengthening of institutional capacity, and productivity of economic enterprises on improving the quality of the slum settlement environment. The study approach used is a combination of qualitative–quantitative research. Data was obtained through observation, in-depth interviews, surveys, and documentation. The results of the study show that community empowerment, coupled with the use of renewable energy, strengthening institutional capacity, and community participation, contributes positively to increasing the productivity of economic enterprises and improving environmental quality toward sustainable management of slum settlements. The effect of economic empowerment, strengthening institutional capacity, and the use of renewable energy to improve environmental quality with a coefficient of determination of 78.5%. This study recommends socio-economic empowerment based on the use of renewable energy in the implementation of the Makasssar City toward environmental, economic sustainability and the creation of social cohesion.

Economic Business Sustainability and Strengthening Human Resource Capacity Based on Increasing the Productivity of Small and Medium Enterprises (SMEs) in Makassar City, Indonesia

The dynamics of urban development coupled with economic growth have contributed positively to the development of small and medium enterprises (SMEs). Optimizing the utilization and strengthening of the capacity of SMEs’ human resources will encourage increased productivity of economic enterprises and the sustainability of small and medium enterprises (SMEs). This study aims to analyze (1) strengthening the capacity of human resources (HR) of small and medium enterprises to work as a determinant of increasing the productivity of small and medium enterprises (SMEs) and labor absorption; (2) the effect of strengthening the capacity of human resources (HR), business productivity, technology utilization, and business diversification on the sustainability of small and medium enterprises (SMEs); and (3) optimizing the role of government in supporting business development, increasing productivity, business stability and sustainability of small and medium enterprises (SMEs). This study uses a sequential explanatory design approach. Data were obtained through observation, in-depth interviews, surveys, and documentation. Qualitative analysis in this study was carried out through a process of data reduction, data presentation, and conclusion drawing, while the quantitative analysis in this study uses quantitative descriptive analysis, correlation, and multiple regression. The results showed that strengthening the capacity of human resources, coupled with the use of technology, and followed by diversification of business, had a positive contribution to increasing the productivity of small and medium enterprises (SMEs). Furthermore, strengthening human resource capacity, business productivity, technology utilization, and business diversification simultaneously have a positive and significant correlation to the sustainability of small and medium enterprises (SMEs) with a determination coefficient of 72.3%. This study recommends that government policy support through strengthening human resource capacity, increasing business productivity, technology utilization, and business diversification have an impact on the sustainability of small and medium enterprises (SMEs) in Makassar City, Indonesia.

Economic Evaluation, Use of Renewable Energy, and Sustainable Urban Development Mamminasata Metropolitan, Indonesia

The acceleration of the development of the Metropolitan Mamminasata area has an impact on the socio-economic dynamics of the community and the use of excess energy resources. The purpose of this study was to analyze (1) economic growth and energy security work as determinants of urban development for Metropolitan Mamminasata, (2) the effect of economic growth, energy consumption, availability of transportation infrastructure, and renewable energy on the quality of the environment and the sustainability of the Metropolitan Mamminasata system, and (3) renewable energy management strategies and sustainable urban development for Metropolitan Mamminasata. An explanatory sequential approach was used. Data were obtained through observation, surveys, and documentation. The results showed that renewable energy which has the potential to used, in the Mamminasata Metropolitan urban area to support economic growth and increase urban productivity, namely water energy, wind energy, and biomass energy. Furthermore, it takes the effectiveness and efficiency of energy users toward improving environmental quality. Economic growth, energy consumption savings, the availability of transportation infrastructure, and renewable energy have a significant effect on environmental quality, with a determination coefficient of 82.3%, and the sustainability of the Metropolitan Mamminasata system, with a determination coefficient of 75.7%. Use of renewable energy in the management of urban development will require support from government policies, as well as community and business participation. This study recommends a renewable energy management strategy as an important part of supporting the sustainability of urban development in Metropolitan Mamminasata, Indonesia.

Water Quality Pollution Control and Watershed Management Based on Community Participation in Maros City, South Sulawesi, Indonesia

Increases in the number of urban residents have significant impacts on spatial pressure, affecting the utilization of river basins. The purpose of this study is to analyze (1) the increase in population and changes in spatial use as determinants of the complexity of the watershed ecosystem; (2) the effect of housing development, urban activity systems, and land use changes on the degradation of the environmental quality of the watershed; and (3) the direct and indirect effects of changes in spatial use, land reclamation, and community behavior on water pollution and the sustainability of watershed management in Maros City. The research method used is a sequential explanatory design combining quantitative and qualitative research methods. Data were obtained through observation, in-depth interviews, surveys, and documentation. The study findings show that land use change, complexity of spatial use, and community behavior have a negative impact on the environmental quality of the watershed. Housing development, urban activity systems, and changes in land use had a significant effect on environmental quality degradation, with a coefficient of determination of 73.9%. Furthermore, the influence of spatial use, land reclamation, and community behavior on water pollution in the watershed was 72.82%. This study may serve to assist the decision-making of and policy formation by the Maros Regency Government in the framework of controlling the use of watersheds, working towards their social, economic, and environmental sustainability.