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Population density plays a critical role in shaping public health outcomes and environmental quality, particularly in rapidly urbanizing regions. This study aims to analyze the relationship between high population density and its impacts on sanitation conditions, air quality, access to clean water, and the incidence of various diseases in densely populated areas. The research adopts a qualitative descriptive approach by combining a comprehensive literature review with field observations conducted in several urban areas characterized by high population concentration. The findings reveal that increased population density is closely associated with environmental degradation, including inadequate sanitation systems, reduced air quality due to pollution, and limited availability of clean water. These environmental challenges contribute directly to a higher prevalence of health problems, such as respiratory infections, waterborne diseases, and other communicable illnesses. Overcrowded living conditions also intensify the spread of diseases, placing additional pressure on public health infrastructure. Furthermore, the study highlights that insufficient public facilities and poor environmental management exacerbate the negative effects of population density on both health and the environment. To address these challenges, effective strategies are required, including population growth control, improved urban planning, and enhanced investment in public health and environmental sanitation facilities. Strengthening community awareness and participation in maintaining environmental cleanliness is also essential. Overall, this study emphasizes the need for integrated policies that balance population management with sustainable environmental and public health development.  

Sustainable Waste Management System at the Department of Environment and Forestry of Sinjai Regency, supervised by Hermansyah (Supervisor I) and Rajamemang (Supervisor II). The Department of Environment and Forestry (DLHK) of Sinjai Regency plays a crucial role in the waste management system in the region. This study aims to analyze the waste management system implemented by DLHK and identify the supporting and inhibiting factors in achieving sustainable waste management. This research employed a qualitative approach through in-depth interviews, direct observation, and document analysis. The analysis focused on five main aspects: operational technical, institutional, financing, legal, and community participation. Research shows that the waste management system in Sinjai Regency still faces several challenges. In terms of operational technical aspects, there is a limited number of waste collection vehicles and TPS 3R facilities that are not functioning properly. In terms of institutional structure, the organization is in place but lacks expert staff and training. Regarding funding, the allocated budget tends to decrease every year and is not enough to cover all waste management activities. From a legal perspective, there are regulations in place, but their implementation is not consistent. On the community participation side, awareness and involvement in sorting waste and maintaining cleanliness remain low. However, there are some supporting factors such as leadership commitment, the existence of local regulations, and the government's efforts in providing basic facilities. This study recommends strengthening waste management policies, increasing human resource capacity, and encouraging community participation to establish a sustainable waste management system.

The issue of inorganic waste such as plastic and used paper in industrial environments remains an important issue that affects the cleanliness and aesthetics of work areas. PT Pertamina Patra Niaga Fuel Terminal Rewulu faces challenges in managing non-hazardous solid waste due to limited sorting systems and waste transportation frequency. This Community Service activity aims to improve workers' understanding and skills through socialization and training in making ecobricks as a solution for utilizing inorganic waste. The methods used include pre-activity stages, socialization and hands-on practice, and evaluation through pre-tests and post-tests. The results of the activity showed a significant increase in participants' knowledge after the training, proving the effectiveness of interactive methods in strengthening understanding of the 3R (Reduce, Reuse, Recycle) concept. In addition to reducing waste volume, this activity also fostered awareness and participation among workers in creating a clean and sustainable work environment. The results of this community service are important as a first step in building a culture of independent waste management in industrial environments and can be replicated in other locations with a similar approach. Keywords: Implementation of Pancasila values, bullying prevention, character education, primary school, SDN 1 Jatisela, school environment, student behaviour.

This community service program aims to empower village communities through the establishment of waste banks as a solution for sustainable waste management. The background of the activity is the increasing volume of unmanaged household waste, which has led to environmental and health problems in the village. The waste bank was chosen as an instrument because it can integrate environmental, social, and economic aspects simultaneously. The service method is carried out using a participatory approach, including outreach, technical training on waste sorting, waste bank administration management, and mentoring community groups. The results of the activity show an increase in community awareness of the importance of waste management starting from the household level. The community has become accustomed to sorting organic and inorganic waste and submitting it to the waste bank. The collected waste is then processed or resold, generating economic value for the community. In addition to impacting environmental cleanliness, this program also creates a circular economic system in the village, where waste is viewed as a resource, not a burden. The waste bank has proven to be an effective instrument for empowering village communities, strengthening community participation, and supporting environmentally friendly sustainable development.

Effective waste management is a crucial challenge in maintaining environmental cleanliness and sustainability, especially in rural areas. This study aims to analyze the development of waste banks as a sustainable waste management solution in Jl Sosro GG 1001 Village. The research method used is qualitative descriptive with data collection techniques through field observations, in-depth interviews with residents and waste bank managers, and documentation of activities. The results of the study show that the existence of waste banks is able to increase public awareness in sorting and managing household waste. In addition, the social and economic impacts caused are quite significant, such as the formation of work groups, increased additional income, and strengthening the value of mutual cooperation. However, there are a number of challenges that hinder program optimization, including limited operational facilities, lack of continuity of community participation, and lack of technical support from local governments. To overcome this, a capacity building strategy is needed through continuous training, provision of supporting facilities, and cross-sector collaboration. The waste bank in Jl Sosro GG 1001 Village has great potential to be used as a model of sustainable community-based waste management, if supported by a joint commitment between residents, the government, and other stakeholders.

This study examines the Green Village Movement as a form of community empowerment in environmental conservation at Jl. Sosro Gg. Amban, Bandar Selamat Subdistrict. The increasing environmental degradation has encouraged local community-based initiatives to sustain environmental preservation. The Green Village Movement integrates active participation of residents in activities such as greening, waste management, and natural resource conservation through a bottom-up approach. This research employs a descriptive qualitative method with data collected through interviews, participatory observation, and document studies. The results indicate that the movement effectively empowers the community to actively maintain cleanliness and environmental beauty, while enhancing social solidarity. Despite challenges such as limited funding and awareness, the Green Village Movement positively impacts environmental quality and social life. This study concludes that the community empowerment model based on the Green Village Movement can be replicated as an effective sustainable rural development strategy.

The community service activity themed “Efforts of the GG. Subur, Bandar Selamat Residents in Maintaining Environmental Cleanliness” was carried out to increase public awareness in maintaining the cleanliness of the surrounding environment, as well as to encourage active participation in preserving environmental sustainability. This program includes household waste management, street park cleaning, and mosque cleanliness. The methods used were socialization about the importance of maintaining environmental cleanliness, mutual cooperation in cleaning the environment, and interactive discussions with local residents to explore ideas on efficient waste management methods. The results of the activity showed a positive response from the community, with active involvement in every stage of the activity, as well as the emergence of initiatives to continue the cleanliness program independently through a mutually agreed upon routine schedule of gotong royong. This program not only increases awareness about the importance of cleanliness but also strengthens social relationships among residents and fosters a sense of ownership over the environment. In conclusion, this activity successfully raised the community’s awareness of environmental cleanliness and is expected to continue as a sustainable community-based environmental management model.

The POSEIDON 2025 program is a community service initiative focused on enhancing environmental resilience and improving the welfare of coastal communities in Kalijaga Hamlet. The program began with a series of surveys aimed at identifying environmental conditions, social dynamics, and the main issues faced by local residents. The survey results revealed rapid sedimentation, accumulated waste along the coastline, and seawater intrusion that rendered groundwater unfit for consumption. Based on these findings, several solution-oriented activities were designed, including the installation of a water filter in the mosque, seminars and socialization on the functions and conservation of mangroves, the planting of 100 mangrove seedlings, the restoration of the Community Hall with the addition of an environmental-themed reading corner, and a beach clean-up activity. The program was carried out over three days with the involvement of local residents, students, academics, and social organizations. The implementation results showed an increase in public awareness of the importance of protecting mangrove ecosystems and coastal cleanliness, improved access to clean water, and enhanced environmental literacy among children. This program demonstrates that interdisciplinary collaboration and active community participation play a vital role in achieving sustainable and resilient coastal development.

Community Service Program (KKN) is a student service activity aimed at applying the knowledge and skills acquired during college to real community problems. This KKN was conducted in Desa Rasau Jaya Satu, Kecamatan Rasau Jaya, Kabupaten Kubu Raya for a duration of four weeks in August 2025. The program involved comprehensive activities, including identifying key village issues and potentials, as well as implementing various development programs focused on improving infrastructure, education, agricultural productivity, and environmental cleanliness. The methods used during this KKN included direct observation, in-depth interviews with community leaders and members, community counseling sessions, and active participation of local residents in all stages of the program. As a result, students successfully accomplished multiple work programs such as the creation and installation of street name signs and cemetery markers, socialization campaigns addressing bullying prevention and environmental awareness, and technical assistance in resident data input for better governance. These efforts collectively contributed to positive impacts on the social, educational, environmental, institutional, and economic conditions of Desa Rasau Jaya Satu. Furthermore, this KKN has enhanced the awareness and sensitivity of participating students regarding the importance of community engagement and empowerment, as well as reinforced their practical skills in interdisciplinary collaboration. The integrated approach of this program supports sustainable village development and exemplifies the role of higher education institutions in fostering community welfare and student personal growth.

Gotong royong, or mutual cooperation, is a deeply rooted local cultural value in Indonesian society that plays a strategic role in strengthening social cohesion and promoting environmental consciousness. This study aims to explore and analyze the function of gotong royong in fostering social solidarity and raising community awareness of environmental sustainability through various communal activities. These activities include neighborhood cleaning, reforestation efforts, and participatory waste management, all of which require active involvement from community members. Using a qualitative descriptive method, the research was conducted through field observations and in-depth interviews with residents actively engaged in gotong royong practices. The findings reveal that gotong royong serves as a powerful social mechanism that encourages a sense of togetherness, mutual aid, and shared responsibility among community members. These interactions help to solidify social bonds and create a collective spirit that is vital for social resilience. In addition to reinforcing social relationships, the practice of gotong royong significantly contributes to enhancing environmental awareness. Communities become more proactive in maintaining cleanliness, preserving green spaces, planting trees, and managing waste sustainably. The study concludes that gotong royong is not merely a traditional cultural practice, but also an effective and relevant instrument for promoting social and environmental well-being in contemporary society. Its continued integration into community development programs could further strengthen both social solidarity and environmental stewardship, making it a vital component in sustainable development initiatives. Therefore, revitalizing and institutionalizing gotong royong is essential for fostering holistic and inclusive community growth.

Community Service Program (KKN) is a form of student community service by directly applying scientific knowledge in the field. The 2025 Unimed KKN was conducted in Durin Simbelang Village, Pancur Batu District, Deli Serdang Regency, with the aim of empowering local potential and improving the quality of education, social, and environmental aspects of the village. This research used a qualitative descriptive approach with participatory methods, in which students actively engaged with the community in each program. Data were collected through observation, interviews, documentation, and direct participation, then analyzed descriptively through the stages of reduction, presentation, and conclusion. Research findings indicate that the Community Service Program (KKN) has had a significant impact in various aspects. In the economic sector, the downstreaming and marketing of processed starfruit products has successfully improved residents' skills in processing harvested produce into value-added products. In the educational sector, activities such as "Ceria Calistung Ceria," "Si Cerdik Math," "English Fun Club," "Savings for Small Change," "Education for the Creative Economy," and "Wisdom Digital Literacy" have proven effective in improving academic skills, creativity, and positive character traits among the younger generation. In the social and environmental aspects, the "gotong royong" (mutual cooperation) program, rhythmic gymnastics, educational trash signage, volleyball court construction, gate decoration, and 17th August competitions have strengthened social cohesion, raised awareness of healthy living, and increased concern for environmental cleanliness.

Household waste management, especially organic waste, remains a major problem in many regions, including Pematang Guntung Village, Teluk Mengkudu District, Serdang Bedagai Regency. Improperly managed organic waste has the potential to cause unpleasant odors, environmental pollution, and become a source of disease. Therefore, an appropriate and environmentally friendly solution is needed to overcome this issue. This study aims to examine how the application of the biopore method can serve as a strategy to create a cleaner environment while simultaneously improving soil fertility. The research method used was qualitative, with data collection techniques including observation, interviews, and documentation. The data obtained were analyzed descriptively to illustrate the implementation of biopores in the community. The results showed that the application of biopores was able to significantly reduce the volume of household organic waste. Organic waste placed into biopore holes naturally decomposed into compost, which is beneficial as an environmentally friendly fertilizer. In addition, biopores improved soil water absorption capacity, which helps reduce waterlogging during the rainy season and maintain soil moisture. From a social perspective, biopores encouraged the development of new awareness among community members regarding the importance of waste management. This was demonstrated by the active participation of residents in creating, utilizing, and maintaining biopore holes sustainably. Thus, biopores function not only as a technical solution for organic waste management but also as an environmental education tool that strengthens community collaboration in maintaining cleanliness and enhancing soil fertility in their area.

This community service initiative aimed to enhance public awareness in Lam Keumok Village regarding environmental cleanliness and health through the installation of educational posters. The project was motivated by the prevalence of environment-related diseases and limited public access to effective visual information. The method used was educational and observational with limited participatory engagement. Poster were designed to be visually appealing and easily understood, then placed in strategic public locations such as village halls and places of worship. Observations revealed increased public engagement, marked by spontaneous interactions like reading and discussing the posters. The media proved effective in directly conveying messages, strengthening collective awarenes, and fostering civic involvement. Use of local language and contextual visuals ensured message clarity. Despite the short implementation period, the long-term potential impact is promising as repeated visual exposure can influence behavioral change. The findings conclude that educational posters are a powerful communication tool in rural areas and suggest the strategi can be replicated in similar settings. Community participation in content planning was a key factor in enhancing ownership and ensuring program sustainability.

Waste management has become an increasingly complex environmental issue, particularly in urban areas and densely populated settlements. The lack of public awareness in disposing of waste properly has caused numerous negative impacts, including soil and water pollution, flooding due to clogged drainage systems, reduced environmental aesthetics, and the spread of infectious diseases. These conditions indicate that the waste problem is not merely a technical issue of collection and disposal, but also strongly related to people’s behavior and environmental awareness. Therefore, a simple, practical, and effective approach is required to encourage behavioral change in daily life. One alternative solution is through visual education by using waste signboards that display educational and persuasive messages. These signboards are installed in strategic locations to serve as direct reminders for residents to care more about environmental cleanliness. This study aims to analyze the effectiveness of waste education signboards in improving community understanding and discipline in waste disposal practices. The methods applied included counseling sessions, participatory discussions with residents, designing communicative and attractive signboards, and installing them in high-traffic areas such as main roads, schools, worship places, and public spaces. The results of the activity indicated an increase in public knowledge regarding the impacts of waste, active participation in maintaining cleanliness, and a significant reduction in littering behavior around the areas where the signboards were installed. Furthermore, residents gave positive feedback and expressed their willingness to expand the initiative by adding more signboards in other locations as part of sustainable action. In conclusion, educational signboards proved to be an effective, low-cost, and practical medium to raise community awareness. Beyond delivering environmental messages, the signboards also helped strengthen collective commitment among residents to create a clean, healthy, and sustainable living environment.

This Community Service (PKM) activity was carried out by lecturers and students with the aim of increasing public awareness in environmental management through understanding and implementing relevant Regional Regulations (PERDA) that apply in Sepatan Village, namely Tangerang Regency PERDA number 1 of 2023. The main problem faced was the low level of community participation in preserving the environment, caused by a lack of understanding of the regulations and minimal outreach regarding the legal consequences and collective benefits of complying with PERDA. The activity implementation methods included outreach, group discussions, and direct community mentoring. Outreach aimed to provide an understanding of the contents of PERDA on the environment, while group discussions encouraged interaction and the exchange of experiences among residents in implementing these regulations. The mentoring focused on simple practices, such as household waste management, reforestation, and reducing the use of single-use plastics. The results of the activity demonstrated increased public knowledge of environmental laws and a growing collective awareness to play an active role in maintaining environmental cleanliness and sustainability. Furthermore, this activity also fostered a shared commitment to supporting the sustainable implementation of PERDA. Thus, this PKM emphasizes that regional regulations (PERDA) can function as an effective educational and regulatory instrument to build public awareness and participation in environmental management.

Collaboration between students and the community is a crucial strategy in village empowerment to achieve sustainable development. This study aims to describe the forms of student-community collaboration in educational programs, environmental actions, and the commemoration of the 80th Indonesian Independence Day in West Ambarawa Village, Pringsewu Regency. The method used was descriptive qualitative, with data collection techniques through observation, interviews, and documentation during program implementation. The results indicate that educational activities, including campus outreach, prevention of immorality, anti-bullying, and early childhood education (PAUD) mentoring, increased educational awareness and social literacy. Environmental actions such as mutual cooperation (gotong royong) and mosque revitalization successfully strengthened the values of mutual cooperation and environmental cleanliness. Furthermore, QRIS socialization positively impacted the digital literacy of MSMEs, while local tourism promotion increased the village's tourism potential. The commemoration of the 80th Indonesian Independence Day served as a platform for strengthening social capital and community togetherness. Despite challenges such as limited time and participation, this collaboration significantly contributed to strengthening community capacity. Further recommendations include ongoing mentoring, infrastructure support, and strengthening the role of youth to ensure the program's sustainability.

Tawangsari Hamlet, Tejosari Village, Ngablak District, Magelang Regency, faces serious waste management challenges, reflected in the high daily waste production and the inactivity of waste banks post-COVID-19. To address this issue, the Tidar University Community Service Program (KKN) was implemented, aiming to improve environmental cleanliness through active community participation. This program also supports the achievement of the "Climate Action" goal in the Sustainable Development Goals (SDGs), which focuses on combating climate change caused by air pollution and reducing environmental pollution. The method used in this program is Participatory Action Research (PAR), which is oriented towards community empowerment by involving all stakeholders in every stage of implementation. The activity began with a series of observations to understand the condition of waste management in the community. Then, a waste management tool was created in the form of a smoke-free waste incinerator, which aims to manage inorganic waste in an environmentally friendly manner. In addition, trash bins to facilitate waste sorting at the household level were also provided. Socialization and mentoring for the community, especially youth organizations, were carried out to introduce and educate them on the correct use of incinerators and waste sorting. A demonstration of incinerator use was also conducted with the community, which proved to increase understanding and active participation. The implementation of the incinerator and waste sorting facility demonstrated that these measures were effective in addressing the waste problem in Tawangsari Hamlet and contributed to a cleaner and healthier environment. Furthermore, the program successfully raised environmental awareness among the Tawangsari Hamlet community. Through direct involvement in the waste management process, residents not only gained new knowledge about the importance of waste sorting but also experienced the direct benefits of implementing smoke-free incinerator technology.Keywords: waste management, low-smoke incinerator, Climate Action, SDGs, community empowerment, environmental pollution, Magelang Regency

Waste management is a major challenge in sustainable development, particularly in areas with tourism potential. Paya Jeget Village, Pegasing District, Central Aceh Regency, a developing tourist destination, is addressing waste management issues that require serious attention. The increasing number of tourists visiting the village has the potential to significantly increase the volume of waste generated. Without proper management, this condition can threaten environmental sustainability and public health. Therefore, a community-based waste management approach is needed that involves the active participation of all stakeholders, from village government, community leaders, tourism operators, and the general public. The objectives of this community service activity are to increase public knowledge and awareness about sustainable waste management, develop an integrated community-based waste management system, and establish independent community waste management groups to realize a clean and healthy tourist destination. Implementation methods include outreach and education, practical training, the formation of working groups, and ongoing mentoring to ensure the program runs consistently. The community service activities carried out on June 2, 2025 have achieved the following results: 45 participants participated in the outreach activities, 90% of participants understood the importance of waste from a religious and environmental perspective, the formation of collective awareness to maintain environmental cleanliness, the formation of a waste management group consisting of 15 members, the availability of waste sorting places at three strategic points, the implementation of waste sorting activities at the household level, and the start of organic waste composting activities. In addition, this activity also succeeded in fostering a spirit of mutual cooperation in waste management and improving residents' skills in processing organic waste into compost.

This community service activity was carried out at Sawa Kete Beach, Afulu Village, North Nias Regency, with the aim of raising collective awareness among the community about the importance of environmental cleanliness in the context of sustainable tourism management. The method used was descriptive-qualitative with a participatory approach, directly involving the community in socialization activities, installing information boards, distributing educational leaflets, and conducting joint community service activities. The results of the activity showed an increase in the community's understanding of the principles of waste management based on the 3R (Reduce, Reuse, Recycle) approach, as well as the emergence of a culture of maintaining cleanliness in the tourist area. Active participation from youth groups, housewives, and village officials serves as an indicator of the success of this collaborative approach. However, challenges such as inadequate waste management infrastructure and the absence of clear local regulations were also identified. Therefore, sustained collaboration between the village government, higher education institutions, and community groups is necessary to strengthen environmental management in tourist destinations. This program makes a tangible contribution to the development of clean, healthy, and competitive tourist villages through education, social action, and sustainable community empowerment.

Coastal environmental pollution, especially due to plastic waste, has become a serious threat to marine ecosystems and public health. Nambo Beach in Kendari City, Southeast Sulawesi, is one of the areas affected by the lack of waste management and low public awareness. This community service activity aims to increase community awareness and participation in maintaining beach cleanliness through clean-up actions and environmental education. The methods used include collecting rubbish by students and providing education to visitors through poster media. The results of the activity show that there is community enthusiasm for this activity as well as increased understanding of the importance of protecting the environment. Visual education has proven effective in conveying environmental messages, while beach clean-up actions encourage direct behavior change. This activity proves that collaboration between academics and the community can create a positive impact and needs to be implemented sustainably as part of a participatory-based waste management strategy in coastal areas.