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Plastic is often used for various purposes in human life in very large quantities. From food packaging to automotive materials needs. Plastic is a very well-know material and is widely used as a material for making automotive components, besides metals, such as iron. The main problem with plastics is that they produce waste that doesn’t melt down naturally. It takes a very long time to produce all the plastic waste from the earth’s surface. Contolling the usse of plastic is becoming increasingly difficult, which will also cause air temperatures to be higher than usual, because the polymer has no [ores. Currently, actors must start reducing the use of plastic in their production. This is important to stop the high level of environmental pollution caused by plastic waste.  

Scavenger societies are social groups that depend on the activities of collecting, sorting, and recycling used goods. They do this work as the main source of income. This research aims to understand the characteristics and role of scavenger communities in waste and environmental management. The research methods used include surveys, interviews, and field observations. The collected data is analyzed qualitatively by identifying the main themes that arise from the research results. The results show that scavenger communities have an important role in reducing waste and recycling used goods. They collect various types of materials such as paper, plastic, metal, and electronics that can be resold or recycled. Their work contributes to reducing the negative impact on the environment and sustainable waste management. However, scavenger communities also face challenges and obstacles in carrying out their work. They often experience unsafe working conditions and health risks due to exposure to hazardous materials. In addition, they also face limited access to public services and social stigma that can affect their daily lives.

This study aims to identify, analyze and mitigate the risks of work accidents at PT Dewa Ruci Agung. Occupational Health and Safety (K3) is very important to be implemented by every company. Prevention of work accidents can be done by knowing the existing risks, one of which is through the Hazard Identification, Risk Assessment and Determining Control (HIRADC) method. The data collection method used in this study uses primary and secondary data. From the results of the study it was found that there were 15 potential hazard risks including the Lifting Process of moving blocks/goods using a crane, the Cutting Process lifting material and placing it on the cutting machine, preparing the cutting machine, the Grinding Process lifting material and placing it in the grinding area, preparing grinding tools, Fitting Process and Working at Height plate installation process, Main Engine (ME) Overhaul Process, New metal seat removal process (ME) using manual tools, Removal process (ME) with Chain block, Cylinder liner (ME) removal process with chain block, Process Welding, Sandblasting and Painting Process, Zinc Anode Process, B3 Waste Disposal Process. Based on the results of the risk analysis, risk identification is then carried out using the HIRADC method which is most likely to reduce the level of risk severity. The risk identification proposed by the researcher is that it is recommended that every worker carrying out the task wear PPE in accordance with the provisions given by the company and the person in charge of the company's K3. So that unwanted events do not occur. Always check tools and Personal Protective Equipment (PPE) regarding their eligibility for worker safety.