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Microplastics are extremely small plastic particles that have become a major concern in public health and environmental studies. This literature review aims to discuss the sources of microplastics, their routes of exposure to the human body, their distribution in organs, and their potential health impacts. The method used was a literature review of scientific articles and reports published from 2021 onward, retrieved from Google Scholar, PubMed, ScienceDirect, and official websites of organizations such as the WHO, OECD, and the World Bank. The review findings show that microplastics originate from plastic waste, synthetic clothing, cosmetics, vehicle tires, and food packaging. These particles have been detected in blood, lungs, the placenta, feces, and various human tissues, indicating that human exposure is widespread. However, evidence from human studies is still limited, so cause-and-effect relationships cannot yet be confirmed with certainty. Based on these findings, further research is needed to better understand the long-term health effects of microplastics. In addition, efforts to reduce single-use plastics, improve waste management systems, and increase public education are essential to reduce exposure and prevent future health risks.

This community service activity is motivated by the increasing volume of household plastic waste that has not been optimally managed, thus potentially polluting the environment. Utilizing inorganic waste, especially used plastic bottles, as a planting medium is a simple solution to reduce pollution while increasing community creativity. This activity aims to increase community knowledge and skills in utilizing used plastic bottles as a useful and economically valuable planting medium container. The Women Farmers Group (KWT) participated in this activity on May 1, 2026 in Gempol Sari Village, Sepatan Timur District, Tangerang Regency, Banten Province. Participatory Action Research (PAR) strategies were used to carry out implementation techniques, which included socialization, training, direct practice, mentoring, and assessment. Pre- and post-activity tests were given and evaluated using Paired Sample T-Tests to assess the activity. After participating in the training, the level of participant understanding increased, in accordance with the results of the activity. Participants' knowledge increased significantly through this exercise, as indicated by a significant increase in their average post-test score from 92.86 to 78.57 (p < 0.05). In addition, participants were able to independently practice making simple planting media from used plastic bottles. This activity has positive implications for increasing environmental awareness and community creativity, as well as supporting economic empowerment and sustainable environmental management efforts.

This community service activity is motivated by the increasing volume of household plastic waste that has not been optimally managed, thus potentially polluting the environment. Utilizing inorganic waste, especially used plastic bottles, as a planting medium is a simple solution to reduce pollution while increasing community creativity. This activity aims to increase community knowledge and skills in utilizing used plastic bottles as a useful and economically valuable planting medium container. The Women Farmers Group (KWT) participated in this activity on May 1, 2026 in Gempol Sari Village, Sepatan Timur District, Tangerang Regency, Banten Province. Participatory Action Research (PAR) strategies were used to carry out implementation techniques, which included socialization, training, direct practice, mentoring, and assessment. Pre- and post-activity tests were given and evaluated using Paired Sample T-Tests to assess the activity. After participating in the training, the level of participant understanding increased, in accordance with the results of the activity. Participants' knowledge increased significantly through this exercise, as indicated by a significant increase in their average post-test score from 92.86 to 78.57 (p < 0.05). In addition, participants were able to independently practice making simple planting media from used plastic bottles. This activity has positive implications for increasing environmental awareness and community creativity, as well as supporting economic empowerment and sustainable environmental management efforts.

Nile tilapia (Oreochromis niloticus) culture requires an efficient and low-cost feeding strategy that can support fry growth and survival. This study aimed to analyze the effects of three types of natural feed, namely silk worms, earthworms, and snails, on absolute length growth, absolute weight growth, and survival of Nile tilapia fry. The study was conducted at the Aquaculture Laboratory, Faculty of Science and Computer Science, Universitas Muhammadiyah Gorontalo, from January 31 to March 2, 2026. An experimental method was applied using a Completely Randomized Design consisting of three treatments and three replications. A total of 45 Nile tilapia fry were reared in 9 plastic containers filled with 10 L of water, with 5 fish in each container. Growth and survival data were analyzed using ANOVA at the 5% significance level, while water quality was analyzed descriptively. The results showed that the type of natural feed had no significant effect on absolute length growth, absolute weight growth, and survival. Descriptively, silk worms produced the highest length and weight growth, with values of 2.99 cm and 6.37 g, respectively. Snails produced the highest survival rate of 86.66%. Water quality remained stable, with temperature ranging from 26.3 to 26.8°C, pH from 7.6 to 7.9, and dissolved oxygen from 5.2 to 5.6 mg/L. These findings indicate that silk worms are potential natural feed for improving growth, while snails support the survival of Nile tilapia fry.

The problem of urban flooding is a growing issue due to high population density, increasing volumes of plastic waste, and the reduction of water absorption areas. The use of conventional paving blocks, which are impermeable, further exacerbates flooding conditions because they do not allow water to infiltrate into the soil. This study aims to develop an innovative plastic waste-based paving block incorporating rice straw and sugarcane bagasse, along with the integration of phytoremediation concepts as a solution for urban flood mitigation. The method employed was an experimental approach involving the following stages: material preparation, plastic incineration, material mixing, molding, and testing of water absorption capacity and compressive strength. The results showed that paving blocks with a combination of plastic waste, rice straw, and sugarcane bagasse had the highest water absorption rate of 34% and compressive strength of 21 kg/cm², meeting SNI standards. The addition of natural materials containing silica was proven to enhance the material’s porosity and strength. Additionally, the application of phytoremediation using water hyacinth has the potential to improve the quality of water seeping into the soil. Thus, this phytoremediation-based paving block innovation can serve as an effective alternative solution to reduce flood risks while supporting sustainable waste management and environmental stewardship.

Waste management is a major challenge in environmental conservation in Indonesia. One innovative approach that can be implemented is the use of informative waste signs as a visual educational medium for the public. Waste signs are information boards placed in strategic locations to provide knowledge about the types of waste, their environmental impacts, and the decomposition time of various materials. The Community Service Program (KKN) of Padang State University (UNP) has implemented this concept by creating educational boards containing information on waste decomposition time, ranging from waste that decomposes in 50–100 years to waste that does not decompose at all. This article aims to examine the concept, benefits, and effectiveness of waste signs as a community-based environmental education instrument. The methods used include field observation and a qualitative descriptive approach. The results of the study indicate that waste signs can increase public awareness of the importance of proper waste management. Thus, this medium has the potential to be a simple yet effective educational tool in supporting sustainable environmentally friendly behavior.

Waste management has become a critical environmental issue at both global and national levels due to increasing population and changing consumption patterns. In Indonesia, waste generation exceeds 60 million tons annually, with a significant portion consisting of plastic waste that requires hundreds of years to decompose. One of the main challenges in addressing this issue is the low level of public awareness and understanding regarding waste types and their decomposition time. This community service program conducted by students of Universitas Negeri Padang aims to improve environmental awareness through environmental education and community empowerment using an innovative visual medium in the form of waste decomposition time educational boards. The activity was implemented in Pasar Hilir Hamlet, Lumindai Village, using a participatory approach involving observation, socialization, board design, production, and installation. The results indicate that the program successfully enhanced community knowledge regarding the differences between organic and inorganic waste and their environmental impacts. The educational boards, placed in strategic locations near waste disposal areas, function as effective visual tools that continuously deliver information and reinforce environmentally responsible behavior. In addition, this program contributes to improving environmental cleanliness, strengthening community participation, and increasing environmental literacy. Therefore, the innovation of waste decomposition time educational boards serves not only as an informative medium but also as a sustainable educational tool to promote long-term behavioral change toward environmental awareness.

The transportation of tiger shrimp postlarvae (Penaeus monodon) in aquaculture practice is a critical stage as it may induce physiological stress that directly reduces survival rate. Salinity, as a water quality parameter closely associated with osmoregulatory processes, is a key determinant of success in closed wet system transportation. The present study was designed to examine how varying salinity concentrations influence the survival percentage of PL 10 tiger shrimp postlarvae subjected to closed wet transport conditions, as well as to identify the most suitable salinity range for such transport. A Completely Randomized Design (CRD) was employed with five salinity levels as treatments — 10, 15, 20, 25, and 30 ppt — each replicated five times. Each experimental unit contained 1,500 postlarvae in 1 L of oxygenated water packed in plastic bags and transported for approximately 3 hours. The main parameter observed was survival rate (SR), while supporting parameters included temperature, dissolved oxygen (DO), and pH. Statistical evaluation included the Kolmogorov–Smirnov normality test, Levene’s test for variance homogeneity, one-way analysis of variance (ANOVA), and Duncan’s Multiple Range Test (DMRT) at a significance level of α = 0.05. Results showed that salinity differences had a highly significant effect on postlarvae survival rate (Sig. = 0.000 < 0.05). The 25 ppt salinity treatment produced the highest survival rate of 99.64%, while 10 ppt resulted in the lowest at 63.78%. The measured water quality variables — temperature, dissolved oxygen, and pH — did not exert a statistically significant effect on postlarvae survival throughout the transport period.

Plastic waste management in rural areas, particularly in tourism villages, remains an environmental challenge that requires sustainable solutions. Negeri Tongging Village, as a tourism area around Lake Toba, has experienced an increase in household plastic waste that has not been managed optimally, potentially affecting environmental quality and community well-being. This community service activity aimed to enhance community awareness and capacity in plastic waste management through the implementation of a circular economy approach based on a waste exchange program and ecobrick production. A participatory approach was employed by actively involving the community in all stages of the activity, including socialization, program implementation, and evaluation. The program was carried out during the 2025 Community Service Program of Universitas Islam Negeri Sumatera Utara, consisting of circular economy socialization, collection of plastic waste through an exchange scheme with basic necessities, training on ecobrick production, and the provision of supporting facilities for environmental cleanliness. The results indicate an increase in community participation and environmental awareness, a reduction in improperly disposed plastic waste, and an improvement in community skills in processing plastic waste into useful products. In addition, the activity strengthened mutual cooperation and environmental responsibility among community members. In conclusion, the application of a circular economy approach through ecobrick-based activities can serve as an effective alternative solution for plastic waste management while simultaneously supporting sustainable community empowerment in rural tourism areas.

This community service program was conducted by Group 7 of KKN ITB Ahmad Dahlan Lamongan in Bapuhbandung Village, Glagah District, Lamongan Regency, aiming to address environmental and public health issues through the utilization of ecobricks and the cultivation of family medicinal plants (TOGA). The main problems identified were low awareness of plastic waste management and the underutilization of home yards for medicinal plants. The program applied a participatory assistance method involving students, parents, youth, and village officials throughout the stages of observation, planning, implementation, and evaluation. The results showed that more than 300 ecobricks were produced and assembled into an installation forming the word “BAPUHBANDUNG,” which now serves as a new village icon. In addition, medicinal plants such as ginger, turmeric, and lemongrass were planted around the installation area and residents’ yards. The evaluation indicated high community participation, good-quality ecobricks, and positive initial growth of TOGA. This program not only produced physical outputs but also increased community awareness of plastic waste management, family health independence, and the strengthening of village identity.

This study aims to analyze the characteristics of the soil at PIT North with two highwall and lowwall locations at PT Karya Putra Borneo, Kutai Kartanegara Regency, East Kalimantan Province. The research method was carried out by collecting primary data from the results of field tests using the sondir method with the Cone Penetration Test(CPT) tool and laboratory tests using physical properties, specific gravity, grain size, soil consistency, and consolidation tests, as well as secondary data from the results of literature studies. The parameters analyzed for soil characteristics include the sondir cone resistance (qc) value, grain size fraction distribution, soil plasticity index, and the rate of land subsidence through consolidation. The results showed that at PIT North the highwall area had a qc value of 5.6 Mpa, Fr 0.2%, IP 8.06%, Cc 1, a large rate of land subsidence of 3.3 mm with a settlement period of 4 years. In the lowwall area with a qc value of 10.31 Mpa, Fr 0.16%, IP 6.39%, Cc 0.535, the rate of settlement was 4.4 mm with a settlement period of 3 years. From these results, it is concluded that the soil at the highwall and lowwall locations has different compressibility, seeing the different soil Cc values and the soil plasticity index that affect the compressibility level of the soil and the value of the land settlement rate.

The issue of plastic waste is increasingly becoming an environmental concern, including in elementary schools, due to its non-biodegradable nature and its potential to cause environmental pollution if not properly managed. This activity aims to implement the Ecobrick method as an innovative solution for managing and utilizing plastic waste at SDN 054945 Desa Dogang, Gebang District, Langkat Regency. The method used is a descriptive qualitative approach involving 65 students from grades IV and V through a community service activity. The activity was carried out on July 17, 2024, through preparation, implementation, and evaluation stages, with data collection techniques including observation, documentation, and reflective discussion. The results show that the application of the Ecobrick method successfully increased students' understanding and awareness of the dangers of plastic waste and fostered an early environmental concern. Moreover, previously worthless plastic waste was processed into functional Ecobrick benches that can be utilized within the school environment. This activity also encouraged a sense of mutual cooperation, responsibility, and creativity among the students. Thus, the Ecobrick method has proven to be an effective alternative for plastic waste management and a contextual learning medium in creating an environmentally friendly school culture.

UMKM Kerupuk Subur is one of the SMEs quite well-known for its cracker products and is located at Jl. Gedongkuning Gg. Nuri No.66, RT.2/RW.33, Wonocatur, Banguntapan, Bantul Regency, Special Region of Yogyakarta. Product packaging is one of the important factors in maintaining the quality of the crackers to keep them crispy and not easily soggy. Currently, UMKM Kerupuk Subur still uses ordinary plastic packaging that is only tied with a string, so its protection against physical damage and product quality deterioration is still limited. Besides functioning as a protector, product packaging also serves as a consumer attraction that can influence purchasing decisions. In 2024, UMKM Kerupuk Subur experienced a production and sales decline of 4.58 percent, which is suspected to be influenced by packaging factors. This study aims to develop Kerupuk Subur packaging based on customer criteria and needs. The Green Quality Function Deployment approach is used to obtain comprehensive information in designing packaging according to consumer needs and preferences. The results of identifying consumer needs show priorities such as packaging that is easy to open, resealable, transparent, environmentally friendly, durable, and tear-resistant. Based on these needs, packaging development alternatives were designed, including an easy-open system, durable and tear-resistant packaging, and resealable packaging to maintain product quality and crispness. Then, testing was conducted with 50 respondents to assess consumer satisfaction. The level of consumer satisfaction falls into the satisfied category, with an average score of 4.18, where 80% of respondents stated they were satisfied or very satisfied with the designed packaging prototype.

Plastic waste has become one of the main environmental problems due to its nature, which is difficult to decompose naturally and can cause environmental pollution. One alternative waste treatment method that can be applied is to use a plastic melter to melt and recycle plastic waste into useful products. However, the design of plastic melters often lacks consideration of structural strength and safety aspects during the operation process. This study aims to design and engineer a plastic melter using the Finite Element Analysis (FEA) simulation approach to analyze structural resistance to thermal and mechanical loads that occur during the operation process. The research method was carried out through 3D design modeling of plastic melter components using Solidworks software, followed by analysis with FEA simulation on the main component, namely the melting tube. The parameters analyzed include the distribution of von Mises stress, the amount of displacement, and the safety factor. The analysis results show that the analyzed components experience von Mises stress distribution and displacement that are still below the material tolerance limits, with safety factor values above the recommended safety limits. Thus, the resulting plastic melter design is declared safe and can proceed to the manufacturing process. Therefore, the plastic melter design is safe, strong, and feasible to be realized as an effective and sustainable plastic waste processing technology solution.

Community service with the theme of Socialization and Education of Legal Products for MSME and Creative Economy Actors in Temberan Village, Pangkalpinang City, is based on field conditions, where many MSME actors in the region do not have legal legality for the businesses they run and lack basic knowledge regarding product packaging and brand creation that have high marketability. As a result, their businesses are not developing to strengthen the creative economy and enhance the capacity of actors. The model used in this program is a direct dialogue method with the MSME actors. The discussion results showed that of the 26 participants, only 1 MSME actor had received guidance and had an NIB (Business Identification Number), but lacked a halal certificate and patent rights for their product brands. The other 25 participants were briefed for the first time regarding the importance of legal legitimacy for their business. Therefore, it can be concluded that these 25 MSME actors do not have legal legitimacy for their businesses. The team provided assistance to help register their businesses by collaborating with relevant agencies. Regarding product branding, it was found that all participants had not optimized their product branding, as most MSME actors in Temberan Village packaged their products simply without attractive branding, packaging, colors, or packaging materials. Many even used plastic wrapping without a brand. The team intervened intensively by providing further assistance to MSME actors in Temberan Village, utilizing information and communication technology to help determine product brands for those without one and to select packaging materials that follow current trends, shapes, colors, and materials to make the product more attractive and increase branding and consumer interest.

This community service was carried out in Margaluyu Village, Kasemen District, Serang City. This community service program was prepared based on the problem of increasing the amount of household plastic waste in Margaluyu Village which until now has not been managed optimally. As an innovative effort in handling this problem, the community service team held a training activity on making wind hole breeze breeze blocks using mixed materials in the form of shredded plastic and silica sand. This community service program not only focuses on efforts to reduce the level of environmental pollution, but also directs inorganic waste to be processed into building materials that have aesthetic value as well as high benefits for local residents. The activity was carried out with a focus on strengthening the role of youth groups and fathers as the main drivers of the creative economy at the village level. In the demonstration session, participants were invited to directly practice steps ranging from plastic sorting, the enumeration process, to roster printing techniques that require high precision. In addition, the team also provided technical assistance and simulations of production cost calculations so that participants understood the potential economic value of the product. Participatory discussions were conducted to explore field challenges, while the final evaluation showed an improvement in the participants' skills and environmental awareness.

This community service was carried out in Margaluyu Village, Kasemen District, Serang City. This community service program was prepared based on the problem of increasing the amount of household plastic waste in Margaluyu Village which until now has not been managed optimally. As an innovative effort in handling this problem, the community service team held a training activity on making wind hole breeze breeze blocks using mixed materials in the form of shredded plastic and silica sand. This community service program not only focuses on efforts to reduce the level of environmental pollution, but also directs inorganic waste to be processed into building materials that have aesthetic value as well as high benefits for local residents. The activity was carried out with a focus on strengthening the role of youth groups and fathers as the main drivers of the creative economy at the village level. In the demonstration session, participants were invited to directly practice steps ranging from plastic sorting, the enumeration process, to roster printing techniques that require high precision. In addition, the team also provided technical assistance and simulations of production cost calculations so that participants understood the potential economic value of the product. Participatory discussions were conducted to explore field challenges, while the final evaluation showed an improvement in the participants' skills and environmental awareness.

This study examines the seismic performance of slender Air Traffic Control (ATC) towers in high‑hazard regions (PGA > 0.4g), where vertical taper, torsional eccentricity, and top‑heavy cab mass can significantly increase drift, base shear, and collapse risk relative to conventional buildings. Existing studies often rely on linear procedures and outdated provisions, leading to underestimation of nonlinear behaviour and limited guidance for ATC towers designed to SNI 1726:2019. The research aims to quantify these irregularity effects and formulate design recommendations that satisfy Immediate Occupancy, Life Safety, and Collapse Prevention performance targets. The methodology couples response spectrum analysis, using a site‑specific Padang spectrum consistent with SNI 1726:2019 and ASCE 7‑16, with nonlinear pushover analysis interpreted through FEMA/ATC performance‑based criteria. A parametric study is performed on three cab configurations small, medium, and large modelled as 5%, 15%, and 25% mass ratios at the tower head, while keeping a 10 m × 10 m hybrid core–frame shaft constant. Results indicate that larger cab mass produces systematic but moderate increases in global displacement, story drift, and base shear, while plastic hinges localize primarily in the upper stories and cab‑support region, yielding performance levels from Immediate Occupancy to Collapse Prevention. Overall, the tower meets code drift limits and acceptable performance if local strengthening is provided around the shaft–cab interface, offering a calibrated reference for top‑heavy ATC tower design in Indonesian high‑seismic settings and identifying priorities for future time‑history and soil–structure interaction studies.

. This research is driven by the low literacy of plastic waste management in primary education, where students tend to perceive cleanliness only as disposing of trash without having the skills for reuse. This study aims to describe the utilization of recycled plastic waste media in enhancing students' environmental awareness at MI Salafiyah Syafi’iyah through an experiential learning approach. The method employed is descriptive-analytical qualitative, with data collection techniques including direct observation, interviews, and documentation. The research implementation was carried out through three main stages: participatory waste sorting, selection of clothing pattern designs as adhesive media, and the construction of creative collages into an educational display board named "Karyaku." The results indicate that the integration of plastic waste as a learning medium is capable of transforming students' paradigms from a consumptive to a creative perspective, as well as improving their practical understanding of the 3R principles (Reduce, Reuse, Recycle). The success of this research is evidenced by the creation of aesthetic and functional visual media that not only enhances students' creativity but also fosters a sense of responsibility and sustainable environmental concern for the school ecosystem.  

Household plastic waste remains a serious challenge in urban environments, including Jl. Assofa II, Kebon Jeruk, West Jakarta, which is characterized by high population density and intense socio-economic activities. The low level of public awareness in sorting and managing plastic waste, particularly bottle caps, highlights the need for educational approaches from an early age. This community service activity aimed to enhance environmental awareness, creativity, and character development among children through the “Recycled Keychain” project, which involved recycling plastic bottle caps into keychains. The activity was implemented using a Project-Based Learning (PjBL) approach and involved 12 children aged 7–9 years as the main participants. The implementation methods included education on waste management based on the principles of reduce, reuse, and recycle (3R), collection and sorting of bottle caps, and the process of creating creative products. The results showed an increase in children’s environmental awareness and environmentally responsible behavior, the creation of eco-friendly educational products, as well as improvements in creativity, motor skills, and teamwork abilities. In addition, this activity supported the strengthening of the Pancasila Student Profile, particularly in the dimensions of cooperation, critical thinking, creativity, and independence. Overall, the Recycled Keychain project proved to be an effective model of contextual, participatory, and sustainable environmental education in instilling environmental care values from an early age in urban communities.