Improvement Of Environmental Quality Research Articles

The Influence of Air Pollution on Happiness and Willingness to Pay for Clean Air in the Bohai Rim Area of China.

Air pollution imposes detrimental impacts on residents’ health and the general quality of life. Quantifying the influential mechanism of air pollution on residents’ happiness and the economic value brought by environmental quality improvement could provide a scientific basis for the construction of livable cities. This study estimated urban residents’ willingness to pay for air pollution abatement by modeling the spatial relationship between air quality and self-rated happiness with a Bayesian multi-level ordinal categorical response model. Using large-scale geo-referenced survey data, collected in the Bohai Rim area of China (including 43 cities), we found that a standard deviation decrease in the number of polluted days over a year was associated with about a 15 percent increase in the odds of reporting a higher degree of happiness, after controlling for a wide range of individual- and city-scale covariate effects. On average, urban residents in the Bohai Rim region were willing to pay roughly 1.42 percent of their average monthly household income for mitigating marginal reductions in air pollution, although great spatial variability was also presented. Together, we hoped that these results could provide solid empirical evidence for China’s regional environmental policies aiming to promote individuals’ well-being.

Taxonomy of green cloud computing techniques with environment quality improvement considering: a survey

Taxonomy of green cloud computing techniques with environment quality improvement considering: a survey

Valuing the improvement of a decommissioned heritage site to a multifunctional water sensitive greenspace

In this paper, we assess residents' preferences for different options of large-scale water sensitive urban improvement of a heritage site in Melbourne, the Main Outfall Sewer (MOS) reserve. We use a hedonic pricing analysis and a discrete choice experiment to understand the benefits associated with improving the MOS reserve. We find that there are significant non-market benefits associated with various options, both in terms of the potential to reflect increases in house value and in terms of people's willingness to pay for improvements in amenity and environmental quality. This information will contribute to determining investment options for this important heritage site. Importantly, we demonstrate the combination of the hedonic and stated choice willingness to pay estimates to provide an aggregate estimate of welfare, revealing a useful approach for greenspace valuation applications where multiple non-market values should be considered.

Establishment of Regional Regulations DPRD in Surabaya City as a Means of Realizing a Development, Humanist and Sustainable

The research used in the process of this article uses a type of legal research, the way it works is researching library or secondary materials that have been collected. The vision of Surabaya City government is to make Surabaya an advanced, humanist and sustainable city, so regional regulations that are legal umbrella in achieving this vision must be able to achieve indicators of an advanced, humanist and sustainable city. Indicators of sustainable cities are improvement of environment quality, the development of integrated facilities and infrastructure, and implementation of quality local government. If these indicators can be achieved, then city of Surabaya will become an advanced, humane and sustainable city in accordance with city vision of Surabaya. For this reason, in accordance with its function, the Surabaya City DPRD plays a role in formation of regional regulations starting from its role in proposing, which regional regulations that are result in proposal are usually referred to as DPRD Initiative Regional Regulations, then ratify regional regulations both those originating from the proposal of the Mayor or local government ranks as well as those originating from DPRD members themselves, as well as a supervisory function in the implementation of regional regulations that have been valid as part of realizing the vision of Surabaya City. In addition to formation of regional regulations, the effectiveness of achieving the mission is closely related to implementation and supervision in its implementation, Surabaya City of government can be optimal in carrying out its implementation and together with the DPRD to supervise its implementation.

Linking Non Renewable Energy, Renewable Energy, Globalization and CO2 Emission under EKC Hypothesis: Evidence from ASEAN-6 Countries through Advance Panel Estimation

Southeast Asian countries have seen substantial economic growth over the years, but they have not been able to maintain environmental quality at the same time. Non-renewable sources constitute a significant proportion of energy consumption in the ASEAN which can have repercussions for long-term sustainable development. While the impacts of energy consumption and economic growth on environmental quality have been studied before, literature is quiet about the nexus between globalization, renewable and non-renewable energy, economic growth, and CO2 emissions in the ASEAN context. To fill in this gap in the literature, the present study estimates the effect of globalization, economic growth, and renewable and non-renewable energy on CO2 emission under the umbrella of the EKC hypothesis over the 1995 to 2020 period. Due to the presence of cross-sectional dependence and heterogeneity of slope parameters, second-generation techniques of co-integration, unit root, and long and short-run estimations are used. According to the findings of CS-ARDL estimation, non-renewable energy and globalization contribute to environmental deterioration, whereas renewable energy has a positive contribution to environmental quality improvement in ASEAN countries. Moreover, the findings prove the validation of the EKC hypothesis in the selected economies. The study concludes that the region is developing at the expense of environmental quality while also pursuing enormous globalization initiatives. The policy implications and directions of the findings for sustainable development are discussed.

Development of water quality management strategies based on multi-scale field investigation of nitrogen distribution: a case study of Beiyun River, China.

Accurately quantifying the distribution of nitrogen (N) contaminants in a river ecosystem is an essential prerequisite for developing scientific water quality management strategy. In this study, we have conducted a series of field investigations along the Beiyun River to collect samples from multiple scales, including surface water, riverbed sediments, vadose zone, and aquifer, for evaluating the spatial distribution of N; besides, column simulation experiments were carried out to characterize the transport behavior of N in riverbed sediments. The surface water of the Beiyun River was detected to be eutrophic because of its elevated total N concentration, which is 33 times of the threshold value causing the potential eutrophication. The hydrodynamic dispersion coefficient (D) of riverbed sediments was estimated by CXTFIT 2.1, demonstrating that the D of upstream section was lower than that of midstream and downstream sections (Dupstream < Dmidstream < Ddownstream), with the estimated annual N leaching volume of 130,524, 241,776, and 269,808 L/(m2·a), respectively. The average total N concentration in vadose zone and aquifer of upstream Sect.(297.88mg/kg) was obviously lower than that of midstream Sect.(402.62mg/kg) and downstream Sect.(447.02mg/kg). Based on multi-scale investigation data, subsequently, water quality management strategies have been achieved, that is, limiting the discharge of N from the midstream and downstream banks to the river and setting up the impermeable layer in the downstream reaches to reduce infiltration. The findings of this study are of great significance for the improvement of river environmental quality and river management.

МЕТОДОЛОГИЯ РАЗРАБОТКИ И ФОРМИРОВАНИЯ РЕЙТИНГА ЭКОЛОГИЧЕСКОГО РАЗВИТИЯ РЕГИОНОВ РЕСПУБЛИКИ БЕЛАРУСЬ

The development of a rating for the environmental development of the regions of the Republic of Belarus is conditioned by the necessity of a comprehensive assessment of the environmental state of the country’s regions for the implementation of the state policy of the country in the field of sustainable development and improvement of environmental quality, as well as for increasing the efficiency of application of environmental instruments in the framework of international cooperation. Based on the analysis of international approaches to the formation and use of various environmental ratings, the concept of the rating of environmental development of the regions of Belarus at the level of administrative-territorial units (regions) and large cities (regional centers and the city of Minsk) has been developed, scientific and methodological approaches to the formation and maintenance of rating of ecological development. The ranking methodology is based on the ranking of regions according to a set of indicators grouped into three categories. For the rating of cities, 31 indicators were determined, for regions - 37 indicators, which allow for a comprehensive assessment of the current state of the components of the natural environment, the impact of the main types of economic activity on the environment and issues of the effectiveness of environmental policy at the regional level. The methodology for the rating of ecological development of regions was formalized in 2021 in the form of a technical regulatory legal act - TCP 17.02-19-2021 «Environmental Protection and Nature Management. Rating of ecological development of regions of the Republic of Belarus. Technical requirements». Scientific, methodological and practical support for the functioning of the rating of ecological development of regions will be carried out by the Ministry of Natural Resources and Environmental Protection of the Republic of Belarus. An annual update of the rating of regions and cities of the Republic of Belarus and the publication of rating data are provided. In 2021, RUE «Central Research Institute for Complex Use of Water Resources», based on the developed methodology, created the information resource «Ranking of the Environmental Development of the Regions of the Republic of Belarus», which allows automating the procedure for calculating the rating of the ecological development of the regions of Belarus, and calculated and compiled the environmental rating for 2020 year in the context of regional centers and the city of Minsk, the results of which are given in the article.

Study on the Coupling Relationship between Environmental Quality and Green Financial Economy Based on the Grey Correlation Analysis Model

Since the reform and opening up, there has been a great demand vacancy in the market. The development of green finance can just meet many market demands. Let it stand out among many financing schemes. As an innovative financial model that can effectively promote the global economy, green finance is of great significance to the global ecological economy and environmental state. In this article, we will discuss the economic coupling relationship between environmental quality and green finance. Because we lack a relatively perfect economic evaluation system, therefore we integrate green finance and environmental quality indicators, introduce them into relevant and suitable evaluation system indicators, and mainly analyze and judge based on the grey relational analysis model. The results show the following: (1) investigate the environmental quality and green financial comprehensive benefit development index of A, B, and C cities, judge the lagging types of the three cities, and evaluate the specific development status of the cities. (2) Collect data and calculate the coupling degree and coordination degree of cities. Their coupling levels and coordination types are summarized, respectively. (3) The higher the correlation between urban environmental quality and green financial indicators, the closer the relationship between the two indicators and the greater the mutual influence. (4) Sort them by grey relational degree. The correlation between Y1 and Z3 is the least, which is 0.55 and 0.552, respectively. Y3 can be correlated up to 0.655. The results of this paper are very good, and we get the result that green finance can promote the effective improvement of environmental quality.

Does the change of official promotion assessment standards contribute to the improvement of urban environmental quality?

Official promotion assessment standards are an important factor affecting the environmental governance of local governments. The study of the Chinese government adding the evaluation of ecological civilization to the official promotion assessment standards is of great significance to promote China's environmental pollution control and eco-environmental protection. Therefore, it is necessary to explore diversified ways of environmental governance from the perspective of improving the assessment standards for official promotion. Based on this background, this paper uses a variety of econometric models to compare the impact of traditional assessment standards and new assessment standards, including environmental factors on environmental quality. The results show that: (1) Different from the negative environmental impact brought by traditional assessment, when the official promotion assessment standards change, that is, when it is included in the environmental assessment, the official promotion incentive can actively promote the improvement of regional environmental quality, and this result has a more significant effect on the improvement of environmental quality in economically underdeveloped areas and vulnerable areas. (2) The mechanism test shows that the change of assessment standards will force officials to improve environmental quality by improving regional productivity. (3) the promotion of environmental supervision, represented by the development of information technology, helps strengthen the positive effect of the transformation of official assessment standards on the environment. However, it is unstable. This paper provides a useful reference for improving official promotion assessment standards, exploring diversified ways of environmental governance, and clarifying the effectiveness of the Chinese government's ecological environment reform.

The Nexus between FDI, Per Capita Income, Energy Consumption, Trade Openness, and Carbon Dioxide Emissions: Panel Data Analysis of ASEAN Plus Six

ASEAN and ASEAN Plus countries’ commitment in following the Paris Agreement requires them to utilize trade and investment to balance economic growth and improve environment quality. Using observational data from eleven ASEAN Plus countries from 1979–2018, this study aims to assess how income, energy consumption, FDI, and trade openness jointly cause CO2 emissions in ASEAN Plus countries using panel data estimates. This research proves the existence of the Inverted-U Environmental Kuznets Curve phenomenon in ASEAN Plus countries. In addition, a significant increase in energy consumption explains the increase in CO2 emissions levels in this region. FDI inflows have been found to have a negative relationship with the level of CO2 emissions. Meanwhile, trade openness has been found to positively influence the level of CO2 emissions. This FDI and trade relationship with CO2 emissions shows the need for a new harmonization of a more environmental-friendly integrated production system in the region.

Evaluating the Effect of Supported Systematic Work Environment Management During the COVID-19 Pandemic: Protocol for a Mixed Methods Study.

BackgroundThe work environment is a complex phenomenon in which many factors interact. Scientific research indicates a relation between the work environment and employee health, staff turnover, patient satisfaction, and patient safety. There is a great need for knowledge on how to conduct work environment interventions and practical work environment management to maximize benefits to the employees.ObjectiveThe aim of this study is to explore how Occupational Health Service (OHS) support will affect the work environment, sick leave, staff turnover, patient satisfaction, and patient safety during and following the COVID-19 pandemic in a medical ward setting.MethodsA mixed methods evaluation of a concurrent work environment quality improvement project at the Department of Internal Medicine and Geriatrics in a local hospital in the south of Sweden will be performed.ResultsThe mixed methods evaluation of the quality improvement project received funding from Futurum–Academy for Health and Care, Jönköping County Council and Region Jönköping County, and the study protocol was approved by the Swedish Ethical Review Authority. The work environment quality improvement project will continue between May 2020 and December 2021.ConclusionsThe study might contribute to increased knowledge of how work environment interventions and practical work environment management can impact the work environment, and employee health, staff turnover, patient satisfaction, and patient safety. There is a need for knowledge in this area for OHS management to provide increased benefits to employees, employers, and society as a whole.International Registered Report Identifier (IRRID)DERR1-10.2196/34152

Desarrollo de herramientas tecnológicas didácticas para la implementación de un programa de educación ambiental no formal

In Mexico, environmental problems require the intervention of all sectors of society, higher education institutions are an important axis to develop a sustainable society aware of environmental care. The educational community is undoubtedly one of the key sectors in contributing to the improvement of environmental quality, both because of its responsibility in educating citizens and because of the influence it has on the rest of society. Technological tools are new forms of communication and information in both public and private spheres, and must be integrated into educational systems as a didactic resource choice, which is why this document presents a project to use technological tools as part of a non-formal environmental education program, which will serve as a means of learning for environmental awareness and education that allow the regional conservation of the thorny ecosystem, mainly of the reserve that is located in the Mario Molina Technological University Lagos de Moreno Academic Unit. For the selection of the material that the program will contain, 68 children between 6 and 15 years old were surveyed, of which 84% do not know that it is a nature reserve and 90% are unaware of the ecological reserves of Lagos de Moreno; That is why as part of this non-formal environmental education program, one of the tools generated was the design and development of a web page that serves as an environmental education center for the ecological reserve, where it is intended that the Laguense population know the only endemic ecosystem of this municipal head. Another tool that was carried out was the development of didactic software represented by games aimed at obtaining knowledge of the flora and fauna that exist in the thorny forest of the ecological reserve of the Technological Mario Molina Lagos de Moreno Academic Unit, as well as the diversity of other thorn forests in other regions and with this tool strengthen the learning and awareness process about thorn ecosystems.

Economic Benefit Evaluation Model of Urban Street Reconstruction Based on Parallel Multigrid Computing

This study draws on the relevant experience of algebraic multigrid, which effectively deals with anisotropic matrices, transforms the geometric characteristics of unstructured grids into numerical relationships, distinguishes the degree of anisotropy of geometric grids through numerical values, and forms a strong-weak coupling relationship between elements. It is used to aggregate and generate coarse grid levels, which makes up for the defect that the cell-centric calculation format cannot effectively deal with high-ductility grids. In order to reduce the computational complexity of the coarse-grid layer and adapt to the calculation requirements of different dimensions, multiple strong coupling aggregations are used for high-ductility grid cells and cell-centric aggregations are used for other grid cells. Under the RGD model, the government pays attention to the improvement of environmental quality and land fiscal revenue. Residents pay attention to the level of demolition compensation and resettlement fees and the improvement of urban landscape functions. Developers pay attention to urban renewal and renovation costs, public participation, and coordination between new and old buildings. The government pays attention to the level of demolition compensation and resettlement fees and the cost of urban renewal and transformation, residents are concerned about the improvement of cultural education and the level of rental income, and developers are concerned about the improvement of traffic conditions, land utilization, and urban landscape functions. The government pays attention to the level of demolition compensation and resettlement fees and the status of land fiscal revenue, residents pay attention to public participation, and developers pay attention to land use. The comprehensive benefit evaluation of urban renewal is multidimensional, and comprehensive evaluation is carried out from the six dimensions of the social, economic, and environmental perspectives of the government, residents, and developers that coordinate the benefits and the social, economic, and environmental aspects of the development benefits. Social and people’s livelihood, economic development, environmental support, ecological balance, and historical and cultural inheritance are the core content of the evaluation system. The social and people’s livelihood is the foundation, economic development is an important condition, the environment is an important factor, and history and culture are the connotations. Urban renewal is not only about economic development but more concerned about the sustainable development of the society and the environment. Due to many factors, before starting an urban renewal project, the implementation plan should be comprehensively evaluated from multiple perspectives and dimensions and the plan and investment scale should be reasonably formulated to achieve the best goal of sustainable development.

Characteristics of spatiotemporal variations in coupling coordination between integrated carbon emission and sequestration index: A case study of the Yangtze River Delta, China

• Analyzes the degree of coupling coordination between integrated carbon emissions and sequestration. • Analyzes the coercive effect of economic development on the degree of coupling and coordination. • Analyzes the restraint effect of ecological environment on the degree of coupling and coordination. • Analyzes the effects of regional government decision-making priority with different development characteristics. To explore the degree of coupling coordination between carbon emissions and sequestration, a theoretical analysis framework of integrated carbon emission and sequestration index was constructed, and an evaluation index system was constructed based on the economic development, population growth, energy emissions, land use and other indicators. Then, a comprehensive index method and a coupling coordination degree model were used to analyze the characteristics of spatiotemporal variation in the degree of coupling coordination between economic development carbon emissions and ecological environment quality in the Yangtze River Delta (YRD) from 2005 to 2017. A grey relational degree model was used to identify driving factors, and the influence of governmental decision-making priorities on the degree of coupling coordination was simulated. The results showed that: (1) the total carbon emissions of the YRD are still increasing, and vegetation carbon sequestration is stable. Before 2003, carbon emissions and absorption were basically in balance, but they gradually became unbalanced after 2003. (2) The degree of coupling coordination between economic development carbon emissions and ecological environment quality in the YRD is in a period of turning and rising, and the number of high-quality development cities is also increasing, but the entire region remains in the slightly unbalanced stage of coupling coordination. (3) The coordination degree is closely related to the quality of the ecological environment, and areas with higher ecological environmental evaluation scores have higher coordination degrees. The degree of population spatial agglomeration, quality of economic development and efficiency of land use are the main factors that affect the ecological environment. The maintenance of ecological service functions and proportion of expenditures for environmental protection have an increasing impact on the quality of economic development. (4) Governmental decision-making priorities currently significantly affect the coupling coordination trends; the environmental restraint of economic development is increasingly strengthened, and it is necessary to pay more attention to the improvement of environmental quality while improving the quality of economic development. To a certain extent, this research may provide a reference for policy makers in creating sustainable development policies.

Modelling the economic and social issues related to environmental quality in Nigeria: the role of economic growth and internal conflict.

Over the past decades, environmental quality-related issues have occupied a central place in the global discourse with greater concerns to the risk of civil war, terrorism/political violence, civil disorders, and corruption which alter economic sustenance and social structures in the world. This study presents and analyses an empirical model of economic and social issues related to environmental qualitywithin the context of the environment Kuznets curve (EKC) in Nigeria between 1990 and 2016. The empirical results based on the standard ARDL model show that increases in internal conflict and corruption are environmentally deteriorative while increases in renewable energy consumption are found to be a major driver behind environmental quality improvement. The results also show that economic growth stimulates environmental degradation and hence validates the EKC hypothesis in Nigeria. These results are robust across the estimates of the dynamic ARDL simulations with deviation only in the responses ofshocks to internal conflict and corruption which significantly dampen environmental degradation in the short run--and the predicted values remain large over the long run. Furthermore, a unidirectional causal relationship flows from economic growth to ecological footprint, renewable energy, and corruption. Also, renewable energy has a predictive power for ecological footprint. In addition, internal conflict predicts renewable energy, while a change in internal conflict is caused by corruption. These findings, therefore, provide insightful policy implications for stimulating the consumption of renewable energy as a tool for sustainable cleaner environment.

Short communication The Outbreak of the COVID-19 Pandemic and its Healing Effects on the Environment

COVID 19, the virus which originated from a wet market in Wuhan, China. Since its exposure in December, 2019, the virus has spread to almost all the countries in the world, thus turning an epidemic into a pandemic. Although COVID 19 has taken a massive toll on the Human health and global economy, its outbreak has shown positive impacts on the environmental air quality. As the majority of the world is under lock down, the global air pollution has reduced by 40 percent during April 2020. This was identified with the assistance of the data collected from European and American Atmospheric monitoring sites. This article thus summarizes the positive effects of lock down and reduced human mobility, towards the improvement of environmental air quality.

Hydrodynamic zones and the influence of microorganisms on nitrogen transformation in the diverging area of branched rivers

Diverging area is widespread in river networks, and understanding its biogeochemical process characteristics is of great significance to river ecological restoration and environmental quality improvement. Microbial communities affected by hydrodynamics play an important role in biogeochemical processes, but their relationship in diverging area is little known. Here, the composition of microbial community and its feedback to hydrodynamics and nitrogen conversion in the diverging area of river networks were first studied by coupling ecological theory, biogeochemical theory, microbial DNA sequencing and mathematical model of water environment. The results showed that there were five hydrodynamic zones with significant velocity differences in the diverging area, namely low velocity zone, maximum velocity zone, stagnant zone, separation zone, and deflection zone. According to the flow velocity grouping, there were significant differences in the microbial diversity and abundance among low velocity group, maximum velocity group and stagnant group had significant differences (p < 0.05, stress = 0.1207). In the low velocity group, Firmicutes was the dominant phylum which had a highest abundance and may promot the conversion of organic nitrogen into ammonia nitrogen. In the maximum velocity group, Bdellovibrionota was the dominant phylum which had a highest abundance and may promot the conversion of nitrate and nitric oxide to nitrogen. In the stagnant zone, Methylomirabilota was the dominant phylum which had a highest abundance and may promot the conversion of nitrogen into nitrate and ammonium. In addition, dissolved oxygen was the most sensitive environmental factor for shaping microorganisms and nitrogen conversion in the diverging area of the river networks by canonical correlation analysis. The denitrifying bacteria Rhodocyclaceae, was shown to negatively correlated with the flow velocity. This research improves the scientific basis for the study of the ecosystem in river networks, which will guide the construction of river ecological projects.

Optimal Allocation Model for Water Resources Coupled with Ecological Value Factors—A Case Study of Dalian, China

The surface water ecosystem has important ecological value and plays an important supporting and guarantee role in the sustainable development of human society. In this study, an inexact two-stage stochastic programming (ITSP) model was developed for supporting water resource allocation for the four main water sectors (industry, municipal, agriculture, and ecological environment). Several scenarios corresponding to different flow patterns, which reflect different probabilities of water resource availability and environmental carrying capacity, were examined. On the basis of traditional water resource allocation, this model adds consideration of ecological value factors, which is conducive to the synergistic efficiency of socio-economic and ecological water consumption. Results revealed that the water resource carrying capacity, ecological value factors, and water environmental capacity are the main factors affecting the optimal allocation of water resources. Furthermore, the optimal allocation scheme for water resources coupled with ecological value factors were determined to realize the coordinated development of social economic benefits and ecological benefits. The current study findings are of great significance for establishing a rational water resource management system for water resource exploitation and utilization. This model can be used to guide various departments in Dalian to formulate an optimal water resources allocation scheme by considering ecological value factors, and provide a basis for realizing the coordinated development of Dalian’s socio-economic development goals, water resource utilization, and environmental quality improvement.

Identifying impact of international trade and renewable energy consumption on environmental quality improvement and their role in global warming.

There is a lack of proper research that highlights the impact of institutional quality (IQ) and renewable energy consumption (REC) on the carbon emission (CE). The significance of IQ and REC in the achievement of zero CE is highlighted in this research. The current research reports the effects of these important factors on the consumption-based carbon emissions in the G-7 countries from 1995 to 2018. Based on the outcome of the cointegration test, the long-run connection is recognized between IQ, REC, GDP, exports, imports, and consumption-based CE. The findings also validated that there exist significant decrease and increase in the CE in both the short and long run; for instance, IQ, REC, and exports decrease the CE, while imports and GDP increase the CE. The estimates of causality test showed that policies aimed at improving IQ, REC, GDP, exports, and imports have a significant impact on the CE. Consequently, based on these results, policymakers in the G-7 must prioritize IQ and REC to enhance environmental quality and attain carbon neutrality.

Remote-Sensing Evaluation and Temporal and Spatial Change Detection of Ecological Environment Quality in Coal-Mining Areas

The large-scale development and utilization of coal resources have brought great challenges to the ecological environment of coal-mining areas. Therefore, this paper has used scientific and effective methods to monitor and evaluate whether changes in ecological environment quality in coal-mining areas are helpful to alleviate the contradiction between human and nature and realize the sustainable development of such coal-mining areas. Firstly, in order to quantify the degree of coal dust pollution in coal-mining areas, an index-based coal dust index (ICDI) is proposed. Secondly, based on the pressure-state-response (PSR) framework, a new coal-mine ecological index (CMEI) was established by using the principal component analysis (PCA) method. Finally, the coal-mine ecological index (CMEI) was used to evaluate and detect the temporal and spatial changes of the ecological environment quality of the Ningwu Coalfield from 1987 to 2021. The research shows that ICDI has a strong ability to extract coal dust with an overall accuracy of over 96% and a Kappa coefficient of over 0.9. As a normalized difference index, ICDI can better quantify the pollution degree of coal dust. The effectiveness of CMEI was evaluated by four methods: sample image-based, classification-based, correlation-based, and distance-based. From 1987 to 2021, the ecological environment quality of Ningwu Coalfield was improved, and the mean of CMEI increased by 0.1189. The percentages of improvement and degradation of ecological environment quality were 71.85% and 27.01%, respectively. The areas with obvious degradation were mainly concentrated in coal-mining areas and built-up areas. The ecological environment quality of Pingshuo Coal Mine, Shuonan Coal Mine, Xuangang Coal Mine, and Lanxian Coal Mine also showed improvement. The results of Moran’s Index show that CMEI has a strong positive spatial correlation, and its spatial distribution is clustered rather than random. Coal-mining areas and built-up areas showed low–low clustering (LL), while other areas showed high–high clustering (HH). The utilization and popularization of CMEI provides an important reference for decision makers to formulate ecological protection policies and implement regional coordinated development strategies.