Pollution control is an essential governance issue in the rapidly industrializing developing nations where urbanization and growing constraints on natural resources are creating ever looming threats to the environment. The implementation, monitoring and enforcement of environmental laws and policies rely as much on institutional capacity as it does on their presence and effective pollution control relies on both. Proper pollution control requires good regulatory institutions which serve as the foundation for reducing exposure to pollution, protecting public health and ensuring sustainable economic development. Bangladesh is facing serious problems in maintaining environmental quality due to the rapid expansion of industries and urbanization. The rapid industrialization and urbanization in Bangladesh had posed serious problems in maintaining environmental quality. Growing industrial emissions, unmanaged industrial waste, and poor waste disposal and management have added to environmental risks for the urban and peri-urban population. Bangladesh had enacted environmental laws and regulations but the capacity to control pollution largely relies on the institutional capacity such as technical expertise, financial resources, capacity to monitor pollution and enforcement measures. Present studies showed that administrative institutions are often under-strength to effectively control industrial waste disposal and pollution as a result of rapid urban expansion which has heightened environmental and health risks (Miah et al., 2022). In addition, environmental governance needs more than the formulation of policies and it needs effective coordination of regulatory agencies, industries, local authorities and communities. Pollution control measures were less effective when they are not well monitored, not well enforced and lacking in accountability. The quality and capacity of institutions had been shown to have a significant impact on the effectiveness of environmental protection efforts in previous research (Fang and Yao, 2026; Tian et al., 2023). 

Previous study related to governance capacity and environmental pollution management had been studied and showed that good institutions, technical capacity and monitoring systems are essential for effective environmental regulation. Nevertheless, the implementation of environmental policies in developing countries was hindered by institutional a constraint which is the case in these countries. Though environmental legislation exists in our country but the ability of pollution control was being restricted by poor monitoring of environmental pollution and poor enforcement of environmental law. According to Miah et al. (2022) the current legal system has been unable to keep up with the rising industrial and urban waste issues due to the issue of implementation. Previous studies also highlighted the lack of accountability and the limited accountability structures as contributing to environmental sustainability challenges. The lack of institutional coordination, inadequate infrastructure and administrative capacity are important challenges impacting environmental management performance (Islam et al., 2023. Studies conducted in various governance contexts indicated that expanding policies without adequate institutional capacity can lead to misalignments between policies and environmental results (Yang, 2025; Sheikh et al., 2025). Previous research had tended to address particular pollution problems, environmental policies and a particular regulatory problem rather than attempting to provide a complete picture of institutional capacity, human resources, technical capability, financial resources and monitoring systems.

Though there had been increasing concern about environmental pollution in Bangladesh but there had been little systematic research that tried to understand the role of institutional capacity in environmental regulatory governance effectiveness. Constraint of institutional capacity, resource availability, monitoring and enforcement of pollution control are primarily responsible. There was predominately gap between law and practice related to environment in Bangldesh. Untreated industrial waste, insufficient compliance monitoring and inadequate accountability guidelines indicated that regulatory efforts are not only ineffective due to lack of policies but also due to institutional shortcomings. Thus an informative assessment of environmental regulations was needed to pinpoint where there are gaps and what institutional measures can be taken to enhance pollution control and public health.

This study presented an integrated analysis of institutional capacity and regulatory governance regarding environmental pollution control system in the context of Bangladesh. Though previous study tended to analyze pollution sources or pollution control regulation but this study looked at how institutional mechanisms affect the possibility of implementing environmental regulation effectively. The novelty of this research lied in the integrated assessment of multiple dimensions of environmental regulatory capacity including human resources, technical capacity, financial resources, monitoring systems and governance effectiveness. The study provided deeper insight why existing environmental laws and regulations unable to achieve satisfactory levels of pollution reduction by examining these interrelated factors. The findings contributed to improve environmental institutions, regulatory performance and protection of public health in Bangladesh. 

The aim of the study was 

• To examine the existing institutional framework for environmental pollution control in Bangladesh.
• To assess the capacity of environmental regulatory institutions in terms of human resources, technical capability, financial resources, and monitoring systems.
• To evaluate the effectiveness of regulatory governance mechanisms in controlling environmental pollution.
• To explore strategies for improving institutional capacity and strengthening environmental governance in Bangladesh.

The study was important because effective environmental governance is essential for balancing both economic development and environmental sustainability and public health protection in Bangladesh. This research provided real views for policymaker, environmental agency programs and stakeholder to create more effective pollution control strategies by highlighting institutional weaknesses and governance barriers. The findings contributed to make practical recommendations on how to make the regulatory institutions stronger by improving the monitoring systems, enhancing the technical capacity, allocating assets, and improving accountability mechanisms. 

The institutional capacity and effectiveness of environmental governance had been the core point of environmental management research in developing countries. In past studies, the impacts of regulatory institutions, legal frameworks, enforcement mechanisms and administrative structures on pollution control had been explored. The importance of institutional capacity was linked to the fact that environmental regulations can only be effective if there are capable institutions to have the resources, technical expertise, monitoring mechanisms and enforcement powers needed to achieve their goals. Contemporary studies focused mainly on the links between institutional arrangements and compliance and environmental outcomes. Research had shown that the implementation of laws and policies can affect the actions of industries and other polluters by setting expectations and the standards for compliance (Yao & Liu, 2026). In developing countries, however, environmental governance problems are especially pronounced due to the speed of industrialization and urbanization that can outpace regulatory institutions' capacity. Within the Global South setting, researchers have focused on the factors that facilitate or impede environmental sustainable reforms, with adaptive governance approaches highlighting the importance of understanding these (Yasmin et al., 2023).

Several governance and regulatory theories explained the relationship between institutional capacity and environmental outcomes. Institutional theory argues that environmental performance was not just a function of formal rules but also effectiveness with which institutions are able to implement, monitor and enforce those rules. A robust regulatory regime, if not supported by strong institutions, can be ineffective in achieving substantial environmental benefits. The notion of regulatory capacity also highlights that environmental failures frequently result from regulatory agency deficiencies in human resources, technical expertise, financial resources, and monitoring systems. Poor institutional capability may lead to implementation gaps in policy or give an industry some leverage to circumvent compliance or regulatory loopholes. In the same way, adaptive governance theory states that environmental issues needed flexible, coordinated, and participatory governance, which must be multi-stakeholder. In the absence of transparency-based accountability systems and the involvement of stakeholders, even though strong laws are in place, systemic failures may happen (Atta & Sharifi, 2024; Mokhtar et al., 2026). Thus, environmental pollution issues were not only attributable to poor policy design, but also to institutional constraints which prevent efficient policy implementation, coordination and enforcement.

A number of institutional problems with regard to environmental pollution control had been identified in previous studies. Studies demonstrated that environmental laws are not effective without effective accountability systems, technical capacity and regulation enforcement mechanisms. Yao and Liu, (2026) investigated the importance of institutional frameworks in environmental governance and concluded that institutional structures and enforcement mechanisms had a significant impact on the compliance behavior of stakeholder. (Islam et al., 2023; Miah et al., 2022; Din et al., 2023) also showed that institutional weaknesses including lack of accountability mechanisms and stakeholders' participation are often linked to environmental governance failures which indicates that institutional strengthening is needed beyond the development of laws. Miah et al. (2022) pointed out the issues faced due to rapid urbanization and growing emission from industrial and domestic sources in Bangladesh. They found that constraints of institutional capacity on pollution related an issue has led to an escalation of environmental and public health problems. 

Internal institutional capacity had been highlighted in other studies. As a result (Cao et al., 2026; Yang, 2025) concluded that inadequate staffing, technical constraints and poor information systems can undermine the effectiveness of environmental laws and pollution control programs. There had also been some research on governance coordination and administration. Bangladesh being a complex governance environment, studies indicated that multi sectoral coordination has an impact on legitimacy and the cooperativeness of environmental enforcement agencies (Din et al., 2023).

Previous studies showed some common features in the area of environmental governance and pollution control. Existing literature reflected the need for good institutions, effective enforcement systems, proper resources and active involvement of stakeholders for the successful management of the environment. Some studies focused on legal frameworks and regulatory mechanisms and their effects on compliance behavior (Yao & Liu, 2026). Governance principles, accountability and stakeholder participation are other factors that have been mentioned as affecting environmental outcomes (Atta & Sharifi, 2024; Mokhtar et al., 2026). Likewise, the broad studies on environmental governance in developing countries had been limited to the environmental governance issues pertaining to urbanization, industrial development and weak environmental governance (Miah et al., 2022). Al-though previous studies had the potential to offer important insights, many have focused separately on different aspects of environmental governance rather than combining multiple dimensions of institutional capacity, such as human resources, technical capacity, financial resources, monitoring systems, and the effectiveness of enforcement.

Although much research had been undertaken on environmental governance there were still some limitations. First, there were limited studies that have evaluated systematically the effect of institutional capacity on achieving the effectiveness of environ-mental pollution control in Bangladesh. While previous studies had identified regulatory problems and yet lacked the empirical understanding of the role that institutional factors play in determining pollution management results. Second, the studies had generally not included the most important dimensions of institutional capacity including human resources, technical capacity, financial capacity and monitoring capacity into one framework. The connection between these institutional factors and the effectiveness of these regulations are not fully understood. Also, the literature demonstrated the disconnect between the national environmental policies and local implementation. The study found that environmental governance is still fragmented and institutional rigidity still hinders adaptive governance and the effective management of pollution (Paul et al., 2025). Thus, this study filled the gap by focusing on the relationship between institutional capacity and environmental regulatory governance and the effectiveness of pollution control in Bangladesh. The research concentrated on the institutional challenges and solutions to these challenges and recommends institutional solutions evidence based on the research to enhance environmental governance and public health.

The study adopted a mixed-method approach combining qualitative and quantitative methods to explore the institutional capacity and regulatory governance role in environmental pollution control in Bangladesh. It had been measurable institutional aspects as well as complex social, administrative, and policy-related aspects which was not be fully understood by one method alone (Creswell & Plano Clark, 2018). This provided a more holistic view of the environmental management issues as the statistical relationships were complemented with the pers-pectives and experiences of the stakeholders and institutional realities (Molina-Azorín and López-Gamero, 2016). The quantitative study measured the relationship between institutional capacity, the effectiveness of regulatory control and pollution control performance while the qualitative study gave deeper explanations on institutional limitations, enforcement challenges and institutional capacity building opportunities. The study was carried out in Bangladesh where pollution control and protecting public health have become a serious problem due to rapid industrialization, urbanization and environmental pressures. The study population comprised stakeholders who are directly engaged in environmental management, regulatory activities and pollution control practices. The participants were from the Department of Environment (DoE), government, industry, environmental, NGO, academic and local community sectors. The participants were selected from the target population using purposive sampling method, which is based on their knowledge and experience on environmental governance issues. The quantitative part of this study involved 150 respondents who answered structured questionnaire and 50 key informants who participated in qualitative interviews. Demographic information such as occupation  type and years of experience was gathered to gain insight into any differences in stakeholder groups.

Structured questionnaire survey and semi-structured interview were used to collect primary data. The questionnaire was designed to address the research questions and consisted of 5-point Likert scale from 1 (Strongly Disagree) to 5 (Strongly Agree). The questionnaire consisted of several sections focusing on institutional framework, institutional capacity, effectiveness of regulatory governance, effectiveness of pollution control, public health protection, institutional challenges and solutions for environmental governance. The institutional framework section analyzed the roles and responsibilities, the sufficiency of environmental legislation, the authority of environmental regulatory institutions, coordination mechanisms, and effectiveness of existing environmental regulatory mechanisms.

The indicators for institutional capacity included availability of trained personnel, technical knowledge, training opportunities, environmental expertise, monitoring technologies, reliability of pollution measurement system, financial resources, and others. The quality of regulatory governance was determined by the implementation of environmental regulation, industry compliance, inspection, enforcement, accountability, and transparency of regulatory institutions. Pollution reduction performance, industrial pollution management practices, improvement in waste management, air quality monitoring, water quality monitoring, and contribution of pollution control initiatives towards environmental improvement were used to measure the effectiveness of pollution control. In addition, the questionnaire analyzed how environmental governance is related to public health protection by reviewing health risks presented by pollution, the inclusion of health effects in decision making and the impact of better environmental governance on health. 

The questionnaire also contained questions on institutional and governance issues that impact pollution control effectiveness. The challenges faced were less skilled manpower, less financial resources, lack of monitoring equipment, ineffective implementation of environmental laws, lack of communication among agencies and little involvement from the public. Moreover, the respondents were asked to score various options on how the environment could be better governed, such as building capacity of trained environmental staff, deploying new monitoring equipment, beefing up enforcement, better coordination among stakeholders, and better public participation.

To gain detailed qualitative information about institutional weaknesses, regulatory barriers, enforcement limitations and policy improvement opportunities, semi-structured interviews were undertaken with selected policy makers, government officials, environmental experts, NGO representatives and academic researchers. Semi-structured interviews were used because they give researchers flexibility to explore more complex governance issues and yet, ensure the consistency of the questions throughout the interviews (Creswell and Creswell, 2018). The questions for the interviews centered on the strengths and weaknesses of the environmental regulatory institutions, barriers to implementing effective pollution control measures, measures to improve environmental governance and public health protection. Primary data were supplemented by secondary data from government reports, Department of Environment publications, environmental policies and legislation, scientific journal articles and international environmental reports. Secondary sources were utilized for background information to enrich the interpretation of primary sources and to compare results of the study with prior environmental governance research. The quantitative data was analyzed with the aid of the Statistical Package for the Social Sciences (SPSS). The demographic characteristics, institutional capacity indicators, regulatory governance measures and pollution control effectiveness were summarized using descriptive statistics. The internal consistency of the measurement constructs was checked through reliability analysis by Cronbach's alpha. To analyze the relationships between the institutional capacity, regulatory governance effectiveness and pollution control results, correlation analysis was used. A multiple regression analysis was used to analyze the effects of institutional capacity and regulatory governance on the effectiveness of pollution control. Independent sample t-tests and analysis of variance (ANOVA) were used to determine differences in perception between various stakeholder groups.

The thematic analysis had been adopted for the qualitative interview data which involved a systematic coding and interpretation process. Data analysis included transcription of responses, identification of similarities and differences, building themes and themes and interpreting institutional and governance problems. Thematic analysis was chosen as a method for identifying, analyzing and reporting patterns in qualitative data, which it is flexible enough to do (Braun & Clarke, 2006). 

Table 1: Reliability Statistics.

The qualitative results were combined with quantitative results to get a holistic picture of institutional capacity constraints and regulatory governance issues in Bangladesh. 

The ethical principles were followed during the research process. It was voluntary and informed consent was secured with all participants and confidentiality or anonymity was guaranteed. The collected information was used only for academic purposes and participants were informed on their right to exit the study at any point in time. The Cronbach alpha values were all above the recommended 0.70, indicating that the items on the questionnaire were reliable measures of the constructs they were intended to measure. To test the internal consistency of the measurement tools which were used in this study a reliability analysis was carried out. The Cronbach's alphas of the constructs ranged from 0.812 to 0.883, which is higher than the minimum recommended value of 0.70. This means that each measure item had an acceptable to good internal consistency. The constructs with the highest reliability were Regulatory Governance Effectiveness (α = 0.883), Governance Improvement Strategies (α = 0.871) and Institutional Capacity (α = 0.861). The poorest alpha was found for Public Health Protection (α = 0.812) which is still acceptable. Thus, all constructs were deemed valid and were used in subsequent statistical analyses.

Table 2: Descriptive Statistics of Main Variables.

The highest mean score was obtained for the governance improvement strategies (Mean = 4.21) which showed a high level of agreement of the respondents on the need for institutional strengthening but the scores for institutional capacity were comparatively low, indicating that resources, technical capacity and monitoring capacity is a concern. The descriptive statistics show that the perceptions about the institutional capacity, the regulatory governance effectiveness and the performance of pollution control were in the moderate range in general. Governance Improvement Strategies (Mean = 4.21, SD = 0.63) had the highest mean score indicating that the respondents were most confident that strengthening environmental governance in the country through improving institutional arrangements, technology adoption, enforcement mechanisms, and stakeholder participation is important. The mean score of the Institutional Framework was moderate (Mean = 3.46, SD = 0.74) meaning respondents acknowledged that there are environmental regulations and institutional structures. Given the moderate score, however, there is a need for improvement of existing frameworks in terms of implementation and coordination. The lowest mean score (Mean = 3.18, SD = 0.81) was for Institutional Capacity which suggests areas of concern include the human resources available, technical expertise, monitoring facilities and financial support. Likewise, the moderate score for Pollution Control Effectiveness (Mean = 3.19, SD = 0.76) indicates that efforts in the area of pollution control are progressing, but still not enough.

Table 3: Item-Level Descriptive Results.

The results showed that the respondents were moderately agreeable with the effectiveness of the existing environmental institutional framework. Environmental institutions had clearly defined roles and responsibilities (Mean = 3.72) suggesting that in general, respondents were aware of the existence of institutions and specified the responsibilities of these institutions. The lowest score was however recorded for Coordination among environmental institutions is effective (Mean = 3.26). This indicates that coordination between agencies is still a challenge, with institutional roles present. The findings suggest that the lack of environmental institutions and regulations is not a significant concern but rather the functioning of coordinating and implementing mechanisms. Co-operation between agencies in this sense will thus lead to better environmental governance results.

Table 4: Correlation Matrix.

Pearson correlation analysis was performed to explore correlations between institutional framework, institutional capacity, regulatory governance effectiveness and pollution control effectiveness. The results show strong positive correlations between all important variables. Regulatory governance effectiveness was significantly and positively associated with institutional capacity (r 0.68; p < 0.01): institutions with good human resource capacity, technical expertise and financial resources were more likely to perform well in terms of governance. Moreover, the effectiveness of the regulatory system was found to be most correlated with the effectiveness of pollution control (r = 0.72, p < 0.01). This indicates that the effective implementation, enforcement and accountability mechanisms are important for better pollution control results.

Table 5: Regression Coefficients.

Multiple regression analysis was carried out to determine the factors affecting the effectiveness of environmental pollution control. The regression model was statistically significant (F = 115.34, p < 0.001) and the model accounted for 61% of the variation in the effect of pollution control (R² = 0.610). This shows that the institutional and governance factors have a significant impact on pollution control. Of the predictors, Regulatory Governance Effectiveness was the most significant (β = 0.49, p < 0.001), suggesting that effective implementation, enforcement, transparency and accountability are important factors in the success of pollution control. Adequate resources, skilled personnel and technical capability, as measured by Institutional Capacity, were also highly positively related (β = 0.31, p < 0.001), indicating that there is a strong link between institutional capacity and environmental outcomes. The Institutional Framework had a minor but significant contribution (β = 0.18, p = 0.012) suggesting that although regulatory structures offer an important base, they need to be effectively implemented.

Table 6: ANOVA Results.

The ANOVA results showed that statistically significant  differences  exist  between  the stakeholder 

groups in relation to their perceptions of the institutional capacity, governance effectiveness and pollution control performance. Stakeholder groups did not have a shared understanding of environmental governance performance as some perceive it better than others as they were shown by the significant p values <0.05. The differences might be due to the different perception on environmental governance by stakeholders. The assessment of institutional performance could be undertaken along administrative lines by the regulatory body while community members and NGOs might have more interest in assessing an institution's environmental results.

Qualitative Findings

The qualitative study of 50 key informant interviews revealed five broad themes of institutional capacity, effectiveness of regulatory governance, environmental governance challenges and solutions to enhance environmental governance in Bangladesh. Themes were identified by systematic coding and interpretation of the responses of the interviews. Each theme is a key dimension that affects the effectiveness of environmental pollution control.

One of the key topics that came up in the interviews was the lack of institutional capacity including in terms of human resources, expertise and professional development. Many participants pointed out that the responsibilities of environmental regulatory institutions are being expanded with the accelerated industrialization, urbanization and environmental stress but manpower and technical resources are not commensurate. All of the participants of regulatory agencies emphasized that specialized knowledge in environmental monitoring, industrial pollution assessment, waste management and environmental impact evaluation are essential for effective pollution control. 

Institutions, however, frequently have limited capacity to regularly inspect, assess environmental hazards and take evidence-based regulatory measures because of the scarcity of trained staff. A few also highlighted the importance of ongoing capacity development training to ensure staff awareness of updated knowledge on best practices in environmental management. The overall results suggest that environmental governance is less effective when there is less institutional capacity which limits monitoring, enforcement, and decision making. The role of environment has been greatly expanded but the manpower and technical skills of institutions have not increased to a corresponding level to meet the new challenges of environment.

The second key topic that arose from the interviews was the disconnect between the environmental laws and implementation. Participants expressed general consensus that Bangladesh has already legislated and developed regulatory systems for the environment, but weak enforcement of the regulations is often limiting the effectiveness. Inconsistent inspections, insufficient follow-up and limited enforcement of non-compliance, and problems with ensuring industrial compliance were cited by respondents as significant issues. The lack of monitoring and enforcement pressure was cited as a challenge for some industries to keep environmental standards, by several participants. Consistent enforcement and accountability were also noted as a key component to the successful implementation of regulations, particularly by government representatives and environmental professionals. The results indicate that incentives for better environmental policies, effective enforcement, better compliance monitoring, and transparency in the regulation process are needed to turn policies into pollution reductions. If the country has environmental regulations, the big problem is that they are enforced and adhered by all stakeholders, “” said him.

The other major theme that emerged was the lack of environmental monitoring infrastructure and technological capacity. The participants stressed the importance of accurate environmental information, innovative monitoring systems and scientific evaluation instruments for effective control of pollution. Many respondents, however, indicated that the current monitoring facilities are not sufficient to properly monitor the industrial emissions, water pollution and waste management in a continuous manner. Lack of laboratory facilities, modern monitoring technologies, and environmental databases hinders identification of pollution sources and compliance monitoring, environmental experts stresssed. Participants proposed that better governance performance could be achieved significantly through investing in digital monitoring systems, automated pollution measurement systems, and better data management platforms. This theme highlights how technological constraints are an important constraint on the ability of regulatory institutions to make timely and evidence-based environmental choices. When monitoring data is inaccurate and technology advances are insufficient, it is hard to determine pollution issues and to assess the success of any regulatory measures.

The fourth theme was about issues related to institutional coordination and collaboration. Participants identified that environmental pollution control is a process involving various actors such as government actors, industries, local authorities, researchers, NGOs and communities. But there is little coordination between these stakeholders and environmental management is often less effective. The respondents highlighted the main governance challenges as overlapping responsibilities, lack of information sharing and poor communication between institutions. NGO representatives and environmental professionals especially stressed that there is need to tackle environmental issues in a coordinated manner within the framework of an institution or institutional package. Rather, a cooperative strategy has to be developed between the government, industry and community, so as to achieve sustainable management of pollution. The results suggest that the institutional effectiveness can be boosted and collective environmental action can be strengthened through the strengthening of coordination mechanisms and through the development of integrated governance approaches. To protect the environment "coordinated efforts" are needed from all the stakeholders, and sometimes the lack of communication and the lack of coordination of responsibilities results in a lack of effectiveness in the realization of the actions already taken.

The final theme that came out of the interviews was on strategies for building institutional capacity and strengthening environmental governance. Participants repeatedly stressed the need for an institutional, technical, regulatory and stakeholder-driven approach to enhance pollution control. Most respondents called for more qualified environmental professionals, and for ongoing environmental staff training and development initiatives. Investment in modern monitoring technologies, better environmental data systems and better laboratory facilities were also highlighted as key priorities. In addition, the participants emphasized the importance of better enforcement systems, better coordination between agencies and involving the public more in environmental decision-making processes. The findings in these recommendations suggest that stakeholders understand that the improvement of environmental governance is a multi-dimensional process that must involve simultaneous development of institutional resources, regulatory systems and collaborative mechanisms. To improve environmental governance, the institutions, technologies, and enforcement must be strengthened and all stakeholders must be engaged.

A summary of the findings from the qualitative data was presented. Qualitative findings were summarized. The qualitative results helped to explain the quantitative results and are used to identify the 'how' of the impact of institutional capacity and regulatory governance on the effectiveness of pollution control. The quantitative analysis proved that there were significant relationships between institutional capacity, governance effectiveness and pollution control outcomes whereas the interview findings described the challenges underlying the relationships. In particular, these were the absence of skilled staff, inadequate enforcement, monitoring systems and coordination were cited as significant constraints. The results of the mixed methods indicated that in addition to developing robust regulatory frameworks, there was a need for improved institutional capacities, technological development, effective enforcement, and collaborative governance approaches in order to better control environmental pollution in Bangladesh.

The study showed that institutional capacity is an important factor to determine the efficiency of controlling environmental pollution in Bangladesh. The quantitative results showed that institutional capacities were found to be significant in determining pollution control performance and qualitative data indicated that a lack of skilled manpower, technical skills, financial resources, and monitoring facilities were areas of major constraint. The results of this study corroborated that the effectiveness of environ-mental governance depends not just on the institutional rules but also on the ability of institutions to effectively implement, monitor and enforce environmental policies. The areas of administrative, technical and financial capacity are the areas environmental regulations need to deliver measurable environmental improvements from policy objectives. Previous studies highlighted that even though some developing countries have formal environmental laws, they are not effectively implemented due to the weak institutional capacity, technical expertise, and resources of regulatory institutions (Agarwal et al., 2000; World Bank, 2023). Similarly the climate and environmental policy tools often fail because regulatory authorities lack effective monitoring, enforcement powers and capabilities (Blackman, 2010; Nipa et al., 2022). This study contributed to prior work by providing empirical evidence that institutional capacity is not an administrative problem in its own right but a key pathway by which environmental governance affects pollution results. The regression analyses indicated that institutional capacity was significant predictor of the effectiveness of pollution control which implies that better institutional capacity in terms of improved staffing, technical capability and financial resource can improve the environmental management performance. This relationship was further explained by the qualitative results. One of the main features that interviewees underscored related to environmental challenges arising from industrialization and urbanization and the inability of the regulatory institutions to keep up with these pressures. Challenges of this kind have been noted in developing countries where the environmental agency often experiences difficulties trying to meet the demands of regulatory expansion with dwindling institutional resources. As such the reinforcement of environmental institutions should be seen as a necessary rather than an additional measure to introduce to enhance pollution control results.

The study found that the effectiveness of regulatory governance has a significant impact on the results of pollution control which is one of the most important findings of this study. Pollution control effectiveness was found to be strongly associated with regulatory governance effectiveness, suggesting that effective implementation, enforcement, transparency and accountability are key factors in achieving better environmental results. This finding corresponded to the institutional theory which holds that formal rules can be only achieve desired results when they can be put into practice and enforced within the institutions. Among the reasons for environmental governance failures are when policymaking and implementation are misaligned. Environmental legislation was satisfactory in many developing countries but was poorly enforced. This was supported by the qualitative results in which stakeholders voiced enforcement inconsistencies as a significant obstacle. Participants agreed that Bangladesh has established regulatory mechanisms to prevent pollution but a problem was identified about compliance by industries, regular pollution checks and implementing any sanctions. There was also similar evidence from developing-country contexts that the effectiveness of pollution control is heavily reliant upon the credibility of the pollution control systems and the ability of the regulatory authorities to monitor compliance. The findings also add to the current literature as it outlines the importance of seeing the effectiveness of regulation as a multidimensional construct which included monitoring, enforcement, accountability, and coordination. Even complete legal provisions on a regulatory system can yield small environmental benefits when institutional arrangements for carrying out the regulations are insufficient. The effective management of a monitoring capacity is an essential component of an Environmental Information System. 

The results showed that one factor that hampers the effectiveness of environmental governance is monitoring. Relatively lower assessments were given on monitoring equipment, measurement reliability and technological capacity by survey respondents. Inadequate monitoring infrastructure is also identified as a qualitative participant as a factor that hampers evidence-based decision making. Environmental monitoring is essential due to the need for information by regulatory bodies to determine the source of pollution, assess compliance and develop effective measures. Reliable monitoring systems had been shown to be vital to good environmental enforcement, especially in developing countries where monitoring agencies may have limited resources. The findings suggested that technological constraints have adverse effects on the regulatory process, a phenomenon that can generate a vicious circle of low regulatory monitoring, low detection capability and low incentives to comply. As a result, the investment in digital monitoring systems, automated measurement technologies and environmental data platforms can have a huge impact on the performance of regulations. The results were especially important for Bangladesh where the growing industrialization has made the regulation of pollution more complex. In recent evaluations, the need to enhance environmental monitoring, data management and institutional capacity in the environmental governance system of Bangladesh have been identified.

This research also highlighted a significant finding of institutional coordination which is a key governance challenge. While respondents understood that there are environmental institutions and regulators, the level of coordination among environmental agencies was comparatively low. Environmental pollution was a multi-faceted governance issue with a number of actors including government bodies, industry, scientific institutions, NGOs and communities. Hence, environmental interventions was less effective due to poor coordination and fragmented decision-making. Collaborative approaches to environmental governance have been stressed in previous studies as the problems of pollution can often be beyond the capacity of individual organizations. Good governance requires information sharing, institutional co-operation and stakeholder engagement. The qualitative results showed that the stakeholders feel that the lack of clear distribution of responsibilities and communication among the stakeholders are obstacles to effective pollution control. This, in turn, reflects that strengthening environmental governance in Bangladesh needs not only to be strengthening the individual institutional capacity but it also needs to be strengthening the integrated coordination mechanism. The results showed the good correlation between the effectiveness of environmental governance and protection of public health. Generally, respondents are in agreement that improved pollution control plays a role in lowering environmental health risks. This was consistent with the evidence from around the world that environmental pollution is one of the largest risk factors for burden of disease, especially in developing countries where populations are exposed to air pollution, unsafe drinking water, poor waste management and hazardous substances. But the findings indicate that environmental policy is not enough to get health benefits. Effective pollution control required institutional capacity, reliable monitoring systems and enforcement. Therefore, environmental governance should be considered an important component of preventive public health policy.

The ANOVA analysis showed that there were significant differences between the various groups of stakeholders in relation to the perception of institutional capacity, effectiveness of governance and pollution control performance. The general trend of institutional-level respondents was a more positive assessment than community-level respondents. These differences might be due to variations in stakeholder experiences as well as access to institutional information. Governance can be assessed by government officials in terms of institutional frameworks and regulatory processes, while it can be felt by communities due to its effects on the environment. The results showed that it is crucial to consider multiple stakeholders' viewpoints in environmental governance assessments. Participatory approaches can help to increase transparency, enhance accountability, and build public trust in environmental decision making. This study had several major contributions to the body of literature on environmental governance. First, it offers an integrated framework that connects institutional capacity, effectiveness of regulations and pollution control results. Many previous studies dealt with the study of environmental policies or some particular pollution problem, while this study focuses on the institutional mechanisms that shape the performance of regulation. Second, the mixed-method design offered statistical evidence as well as contextual explanations. The identification of significant relationships between variables in the quantitative analysis was followed by qualitative findings that explained what may be happening at the institutional level. Third, the study provided practical suggestions to the policy makers. The findings indicated that institutional strengthening for better pollution control should be an all-encompassing approach including Capable environmental human resources development, Investigate the use of monitoring technologies, strengthening enforcement mechanisms, improving inter-agency coordination and Increasing stakeholder participation.

The results had a number of policy and institutional implications for Bangladesh including environmental agencies need more technical and financial assistance to do an effective job performing their regulatory functions, environmental monitoring systems need to be further modernized, using digital technologies and better data management, enforcement measures should be tightened to guarantee compliance with pollution regulations of the polluters. Moreover, environmental governance should shift from a regulatory to a participatory governance model, with the participation of government institutions, industries, research bodies, NGOs and communities. This would help to increase accountability and enhance the effectiveness of pollution reduction strategies.

Though the findings of the quantitative part were based on the perceptions of the participants and it may have some subjective factors. The cross-sectional design could not cover all for establishing long-term causal relationships. So, the future studies could include longitudinal environmental data, measurements of industrial emissions and comparative analysis among various region of Bangladesh. A further study could also explore the long-term effect of digital environmental monitoring systems, institutional changes and community-based governance on the effectiveness of pollution control.

This study illustrated that environmental pollution control in Bangladesh requires not only the presence of environmental laws and policies. it also required the ability of environmental institutions to implement, monitor and enforce environmental laws and policies. The results showed that the institutional capacity and effectiveness of pollution control has a significant effect on pollution control performance. The quantitative results revealed a strong positive correlation among the institutional framework, institutional capacity, regulatory governance effectiveness and the effectiveness of pollution control and regression analysis identified regulatory governance effectiveness as the most influencing factor. The qualitative evidence also showed that environmental institutions have deficits such as lack of trained personnel, limited technical skills, poor monitoring facilities, poor enforcement and poor coordination among the stakeholders. These challenges leave a gap between the regulations and its implementation. Therefore, there was a need for a multi-faceted approach to pollution control, including institutional strengthening, modernization of monitoring networks, strengthening of monitoring and enforcement, strengthening of inter-agency coordination and broadening of stakeholder participation. The study underscored the need to shift from policy making to implementing and monitoring governance based on accountability. To ensure long-term environmental sustainability and public health in Bangladesh, it is crucial to build resilience in the regulatory institutions by providing them with appropriate resources, technology, human resources and participatory governance. Long-term environmental data, actual pollution measurements and regional comparisons could be introduced in future studies to further assess institutional reform and their long-term effects.

M.A.A.R.: Conceptualization, methodology development, software related analysis, investigation, data curation, formal analysis, visualization and writing-original draft preparation. N.S.R.: Legal analysis, literature review, critical interpretation of findings, validation and writing – review and editing. M.F.K.T.: Software analysis, technical investigation, data processing, methodology support, writing – review and editing. N.T.: Research design support, academic supervision, validation of research outcome, critical revision of the manuscript and writing-review and editing. K.M.N.: Supervision, conceptualization of the research, expert guidance, validation, project administration, critical revision of manuscript and final approval of the submitted version. All authors have read the manuscript, approved the final version and are responsible for the entire content.

The authors wish to thank all individuals and organizations that helped make this research a success. The authors would like to express their special thanks to the government officials, environmentalists, NGO representatives, industry representatives, academics and community members who generously shared their knowledge and experience during the data collection process. The authors also thank all the respondents for their time, cooperation and willingness to share their information for this work. They played a crucial role in raising awareness about the issues of institutional capacity, regulatory governance, and environmental pollution control in Bangladesh. The authors would like to thank their colleagues, researchers, and academics who gave them helpful suggestions and constructive feedback during the research process. Finally, the authors appreciate the continuous motivation and support from their families and well-wishers, which helped them complete this study successfully.

The authors have no conflicts of interest to declare concerning the article. The authors do not have any financial, personal, professional or institutional relationships that could be viewed as having influenced the research design, data analysis, data interpretation, or writing of this manuscript. Each author has participated in this research independently and objectively, and has approved the final version of the manuscript.