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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.  

This study aims to describe the integration of environmental education into early childhood learning activities at TK Prawidya Dharma Demulih through the use of recycled waste as a creative and educational learning medium. The study was motivated by the low environmental awareness among children and the limited use of environmentally themed learning media in the institution. A qualitative descriptive approach was applied using the ADDIE development model, consisting of the stages of analysis, design, development, implementation, and evaluation. The findings reveal that employing a recycled-material spinner game enhanced children’s understanding of environmental cleanliness and encouraged environmentally responsible behavior through playful learning activities. The children showed strong enthusiasm, participated actively, and began to develop habits related to cleanliness after the learning sessions. Moreover, teachers gained new insights into designing innovative and functional learning media using discarded materials. Overall, the use of recycled waste as an educational tool proved effective in fostering environmental awareness while supporting creativity and meaningful learning experiences for early childhood learners..

This study aims to describe the implementation of environmental literacy through the One Student One Plant Movement program at MI Muhammadiyah Gawang. The research method uses a descriptive qualitative approach. Data collection techniques are carried out using questionnaires and documentation. This program is designed through three main stages, namely environmental literacy socialization, program implementation, and plant care assistance. The results of the study indicate that the program is effective in improving students' environmental literacy, evidenced by the average student environmental literacy score of 62.8 before the program (pretest) with a sufficient category and 82.4 after the program (posttest) with a good category, which indicates an increase of 19.6 or 31.2% in environmental literacy scores. This program also contributes to positive changes in student behavior, such as increased awareness of environmental cleanliness and initiatives in caring for plants. Through these activities, students not only gain knowledge about the environment but also real-life experience in maintaining and caring for plants, connecting theory with practice. This program has succeeded in increasing student awareness and involvement in environmental issues, and can be used as a model for similar programs in other schools.

Plastic waste detection in indoor environments is an essential challenge in the development of intelligent cleaning systems and robotic automation. Small and medium-sized plastic debris is often difficult to identify using conventional methods due to variations in color, shape, and reflectance. This study proposes an image-processing-based approach that combines thresholding and contour detection techniques to improve the accuracy of detecting plastic objects on floor surfaces. The initial stage involves converting the image into a color space that is more stable under varying illumination, such as HSV or grayscale, to reduce the influence of lighting intensity. Subsequently, adaptive thresholding is applied to separate plastic objects from the background by using dynamic threshold values tailored to the image’s conditions. The segmentation results are refined through morphological operations such as opening and closing, enabling the removal of small noise and enhancing the clarity of object boundaries. The core stage of the system employs contour detection to extract object shapes and areas, allowing the identification of plastic waste based on size, perimeter, and specific geometric characteristics. Experiments were conducted under different lighting conditions and various floor types, and the results demonstrate that the proposed approach successfully detects plastic debris with satisfactory accuracy and relatively fast processing time. Therefore, this method is suitable for implementation in robotic cleaning systems, indoor cleanliness monitoring devices, and other computer vision applications requiring real-time and efficient object detection.

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.

Clean and Healthy Living Behavior (PHBS) is a strategic effort to improve public health from an early age. Elementary schools are ideal environments to instill PHBS values because children are at a developmental stage where habits are easily shaped. However, observations show that many students still have poor hygiene habits, such as not washing hands properly, consuming unsafe snacks, and neglecting school cleanliness.This PHBS education activity through the School Health Program (UKS) aims to improve students’ knowledge, attitudes, and healthy living practices. The implementation methods include interactive health education, handwashing demonstrations, environmental cleanliness simulations, and classroom cleanliness competitions. The evaluation results show a significant increase in students’ PHBS knowledge from 56% to 92%, accompanied by positive behavioral changes such as regular handwashing and proper waste disposal. This program demonstrates that an educational approach through UKS is effective in fostering clean and healthy living habits among elementary school students. It is expected that similar programs will continue sustainably with the involvement of teachers, health workers, and parents to create a healthy and supportive school environment for children’s growth and development.

Handwashing with Soap (CTPS) is the activity of cleaning hands using clean, running water and soap to remove dirt, oil, and various germs such as viruses, bacteria, and parasites that may cling to the skin. As one of the most effective, simplest, and most affordable methods of preventing infectious diseases, CTPS is highly important to practice consistently, especially among students at Public Elementary School 283 located in Waitomu Hamlet, Leihitu District, Central Maluku Regency. However, observations indicate that after school activities or playtime, several students still show reluctance to wash their hands, which may be influenced by low awareness, limited understanding of hygiene, insufficient supervision, or the absence of strong daily habits related to cleanliness. This issue reflects the need for more structured hygiene education, continuous reminders, and interactive learning methods to instill good handwashing habits. In addition, improving supporting facilities—such as accessible handwashing stations, adequate soap supply, and visual posters—can motivate students to practice CTPS more regularly. Strengthening CTPS awareness and habits is expected to reduce the risk of disease transmission, foster a healthier school environment, and encourage students to adopt lifelong hygiene practices that benefit both their personal well-being and the wider community.

Communal land in Kenagarian Tarantang has undergone conversion into tourism areas, bringing impacts on local environmental conditions. This study aims to explain the forms of communal land conversion into tourist areas, environmental conditions after conversion, and its impact on the environment in Kenagarian Tarantang. The research employed a quantitative associative approach involving 50 respondents randomly selected from 789 households. Data were collected through questionnaires, field observations, and interviews, then analyzed using simple regression analysis. The results showed that communal land conversion occurred intensively for homestay construction and tourism facilities with a total score of 1121 in the good category. Environmental conditions were generally well-controlled with a score of 983 in the very good category, although there were impacts such as reduced vegetation and decreased water quality. Regression analysis confirmed a significant influence between communal land conversion and environmental conditions at 18.49 percent with a significance value of 0.002. Community participation in maintaining the cleanliness of tourism areas was very good, however, stricter government supervision, reforestation programs, and adequate waste management are needed to prevent ecosystem degradation in the future.

This study aims to improve early childhood learning activities by utilizing vacant land as a nature center at Aisyiyah Bustanul Athfal 50 Kindergarten, Surabaya. The underlying problem is the lack of variety in early childhood learning, which tends to be limited to the classroom and the suboptimal use of the surrounding environment as a learning resource. This study used a qualitative approach with the Classroom Action Research (CAR) method, conducted in two cycles. The subjects were 15 children in Group B, characterized by active learning but limited focus on learning and environmental exploration. Data were collected through observation, interviews, and documentation, while data validity was tested through triangulation of sources and techniques. The results showed that children's learning activities increased significantly after the implementation of nature-center-based learning. Children became more active, enthusiastic, and were able to interact better with their environment and peers. Activities such as planting, watering, observing insects, and maintaining garden cleanliness provided meaningful and enjoyable learning experiences. In addition, the utilization of vacant land was an effective solution in creating a contextual and child-friendly learning atmosphere. The environment around the school was optimally utilized as a learning medium appropriate to the development of early childhood. This study concluded that the nature center significantly contributed to increasing children's learning activities. Therefore, this nature-based learning model can be recommended as an innovation in early childhood learning for other educational units. 

Social media represents a significant advancement in information technology that plays an essential role in facilitating communication and social interaction within society. Environmental care behavior reflects individual efforts to support and promote environmental sustainability. This study specifically targets Generation Z and millennials as future generations, emphasizing the importance of instilling environmental awareness and encouraging the maintenance of environmental cleanliness in all settings. Based on these considerations, the Instagram account @pandawaragroup was selected as the independent variable of this study, with a primary focus on environmental care behavior influenced by the content shared on the account. This research aims to examine the extent to which the Instagram account @pandawaragroup affects environmental care behavior. A quantitative research approach was employed, utilizing a random sampling technique by distributing questionnaires to 100 respondents who are followers of the @pandawaragroup Instagram account. Data analysis was conducted using simple linear regression with the assistance of IBM SPSS version 2025. The results of the hypothesis testing indicate that the use of the Instagram account @pandawaragroup has a significant effect on environmental care behavior, with a coefficient of determination of 17%. This finding suggests that the Instagram account @pandawaragroup contributes 17% to shaping environmental care behavior, while the remaining 83% is influenced by other factors beyond the scope of this study.

This study aims to describe the religious habituation strategies implemented at PAUD Adz-Dzikra in developing religious and moral values among children aged 5–6 years, as well as to analyze the behavioral changes resulting from these practices. Using a descriptive qualitative approach, the research involved 50 children and 4 teachers. Data were collected through observation, interviews, and documentation, and were analyzed using data reduction, data display, and conclusion drawing. The findings indicate that the habituation activities—such as Iqra reading practice, short surah memorization, Dhuha prayer, and the Friday Cleaning program—significantly contributed to the development of children’s religious and moral values. Children not only recognized basic religious teachings but were also able to apply them in real actions, including reading hijaiyah letters, performing simple worship, demonstrating politeness, honesty, helpfulness, and maintaining personal and environmental cleanliness. The religious habituation strategies applied at PAUD Adz-Dzikra proved effective in internalizing religious and moral values in accordance with the indicators of the Early Childhood Development Achievement Standards (STPPA) stated in the Ministry of Education and Culture Regulation No. 137 of 2014. This study confirms that consistent habituation is a fundamental approach to developing religious character in early childhood.

River pollution has become one of the serious environmental issues in Indonesia, including in the Gelis River in Kudus City. The lack of public awareness—especially among the younger generation—in maintaining river cleanliness highlights the need for effective and engaging educational media. This study aims to design an Android-based educational game as an interactive learning tool for children aged 7 to 12 years to raise their awareness about the importance of keeping rivers clean. The research method used is Research and Development (R&D), employing the ADDIE development model (Analysis, Design, Development, Implementation, Evaluation). The game developed, titled RiverCourse: Petualangan Menjaga Sungai (RiverCourse: The Adventure of Protecting the River), features a sidescrolling mechanic with a visual style combining pixel art and cartoons, suited to the cognitive development stage of children. Testing was conducted on the target age group through observation and simple questionnaires.

This journal discusses the archive storage and maintenance system at the Lirik District Office, Indragiri Hulu Regency, using qualitative methods. The results of the study indicate that the archive storage system at the Lirik District Office has implemented manual and digital storage. Physical archive storage is carried out manually by arranging it based on the principle of the origin of the archive and the type of media, taking into account the environmental conditions of the storage room (temperature and humidity). Physical archives are stored in fireproof cabinets and coded folders. Digital archives are stored via Google Drive. There are regulations set to maintain confidentiality, limit access, and maintain the cleanliness of the storage room. Archive maintenance efforts include: (1) Maintaining the storage room with air conditioning and ventilation. (2) Cleaning the storage room and archives regularly. (3) Separating damaged archives; (4) Using fireproof metal archive cabinets; (5) Arranging archives neatly and using camphor. Overall, the implementation of the archive storage and maintenance system at the Lirik District Office has met expectations, although not yet optimal. This study concludes that the archive maintenance efforts carried out are quite good in maintaining the physical condition and information of the archives, although there is still room for improvement and optimization of the system.

This study aims to analyze the quality of waste transportation services provided by the Waste Management UPT in Bogor Regency, with a case study in Harapan Jaya Village. The research employed a descriptive quantitative approach using questionnaires distributed to 100 community respondents. The variables examined refer to the five service quality dimensions, namely tangibles, reliability, responsiveness, assurance, and empathy. The findings indicate that community perceptions of waste transportation services fall into the “fairly good” category, with an overall average score of 3.39. Specifically, the tangibles dimension scored 3.46 (fairly good), reliability 3.47 (fairly good), responsiveness 3.16 (fairly good but lowest), assurance 3.21 (fairly good), and empathy 3.63 (good, highest). These results suggest that waste transportation services have been running fairly well, though improvements are needed, particularly in responsiveness. The study’s findings are expected to provide input for the Bogor Regency Environmental Agency to enhance the effectiveness and quality of waste management services, as well as encourage greater community participation in maintaining environmental cleanliness.

The 2025 Independent Community Service Program (KKN) of the University of Muhammadiyah North Sumatra will be held in Dalu 10A Village, Tanjung Morawa District, Deli Serdang Regency. This activity aims to increase the understanding and concern of elementary school students for the environment through the natural literacy program. The educational approach is carried out through organic and inorganic waste introductions, recycling of used goods, and planting plant seeds in the school environment. In addition, students also carry out supporting activities such as financial management education, MSME promotion, and socialization of the importance of investment for students. To strengthen student understanding, the KKN team also prepared simple learning media in the form of posters and mini modules that make it easier for students to recognize the types of waste and simple steps to maintain cleanliness. The school is also involved through routine coordination to ensure the sustainability of the program after the KKN is completed. The results of the implementation show an increase in student awareness in maintaining school cleanliness, the emergence of environmentally caring behaviors, and the active involvement of the community and the school in maintaining the sustainability of the program. Overall, this KKN program has succeeded in fostering the value of social responsibility, ecological concern, and strengthening synergy between students, schools, and village communities in supporting a cleaner and more educational environment.

The 2025 Independent Community Service Program (KKN) of the University of Muhammadiyah North Sumatra was held in Dalu 10A Village, Tanjung Morawa District, Deli Serdang Regency. This activity aims to increase elementary school students' understanding and awareness of the environment through a nature literacy program. An educational approach was carried out through activities introducing organic and inorganic waste, recycling used goods, and planting seedlings in the school environment. In addition, students also carried out supporting activities such as financial management education, MSME promotion, and socialization of the importance of investment for students. The implementation results showed an increase in student awareness in maintaining school cleanliness, the emergence of environmentally conscious behavior, and active involvement of the community and school in maintaining the sustainability of the program. This KKN program successfully fostered values of social responsibility and ecological awareness among students and strengthened the synergy between students, schools, and the village community.

This study aims to determine the implementation of strengthening religious values ​​and environmental awareness through educational and creative activities for children in Sari Rejo Village, Medan Polonia District. The main objective of this study is to describe how religious values ​​and environmental awareness are systematically instilled through an interesting and enjoyable non-formal educational approach for children. The problem in this study focuses on the low level of religious awareness and environmental awareness among children who tend to be influenced by technological developments and modern lifestyles. The research method used is a descriptive qualitative approach with data collection techniques through observation, interviews, and documentation of educational activities such as making key chain crafts, caring for the environment by making pot crafts from used plastic bottles, ecobrick crafts, and Islamic-based learning. The results of the study indicate that educational and creative activities can be an effective means of forming religious character and increasing children's awareness of environmental cleanliness. The conclusion of this study confirms that collaboration between the community, educators, and parents plays an important role in fostering moral and social values ​​from an early age, as well as making children more aware of spiritual and ecological responsibilities in everyday life.

Sanitation facilities are a fundamental element that contributes to creating a healthy, comfortable, and productive learning environment in higher education institutions. This study aims to describe the availability of sanitation facilities in the Office Administration Management Study Program, analyze the factors that influence their condition, and explore the perspectives of the academic community regarding their quality and usefulness. A qualitative descriptive approach was employed, with data collected through field observations, in-depth interviews, and documentation. The informants of this study consisted of students, lecturers, administrative staff, and facility managers. The findings reveal that sanitation facilities such as toilets, sinks, and trash bins remain inadequate in terms of quantity, physical condition, and distribution within the campus area. Several key challenges were identified, including limited financial resources, suboptimal management practices, low awareness and discipline among users, and the absence of clear and strict institutional policies related to sanitation standards. The academic community generally perceives that the available sanitation facilities do not meet the expected standards of comfort and hygiene, which may negatively affect the quality of learning experiences and academic activities. This study highlights the importance of strategic planning, adequate budget allocation, and supportive institutional policies in improving the quality of sanitation facilities. The implications of the study are expected to provide valuable input for higher education managers in formulating policies and planning facilities that are more responsive to the needs of the academic community, thereby supporting effective, professional, and sustainable educational governance.

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.

School cleanliness is a fundamental aspect in creating a healthy, comfortable, and character-based learning environment. This community service activity aims to raise students’ awareness of the importance of maintaining school environmental hygiene through a Participatory Action Research (PAR) approach conducted at MDTA Nurul Huda, Padamaju Village, Pagelaran District, Cianjur Regency. The activity consisted of several stages: observation, educational counseling, collaborative cleaning activities, and participatory evaluation. The results show an increased awareness among students of the importance of cleanliness, a more organized school environment, and active involvement of teachers and students in maintaining school facilities. Teachers served as role models who significantly influenced students’ clean habits. The activity also affirmed the integration of Islamic values in hygiene education, aligning with the principle of an-nadhafah minal iman (cleanliness is part of faith). Therefore, the school cleanliness education program at MDTA Nurul Huda is not merely a physical cleaning action but also a sustainable form of character education based on spiritual and social values.