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【Quick Reference】Introduction to JHA Analysis 【Quick Reference】Introduction to JHA Analysis Identifying hazards involves analyzing potential sources of danger during operations, including the following aspects: Unsafe working conditions: excessive loads, confined spaces… Unsafe equipment: rotating parts without protective devices, electrical leaks… Unsafe environments: noise, lighting conditions… Unsafe materials: toxic and harmful substances, flammable and explosive materials… Unsafe organizational practices: lack of training, improper organization of tasks… Hazards present at the customer’s or third-party site that pose risks to physical health. Advantages of the Job Hazard Analysis (JHA) method: ① It is a semi-quantitative evaluation method. ②It is simple and easy to use, with strong operability. ③The task steps are broken down, making them clearer. ④Unlike the dangerous situations associated with each individual step, it enables not only the analysis of the hazards caused by improper behavior on the part of workers, but also the analysis of potential hazards present at the work site (objective conditions). This method is suitable for various tasks that involve manual operation. It is important to note that, as a tool for EHS management, JHA has its own difficulties and limitations in terms of implementation, as follows: 1. The insufficient involvement of construction contractors in JHA analysis is also a challenge in implementation ； 2. During the supervision of the work process, it is inevitable that workers fail to follow the JHA completely in order to save time ； 3. Using a risk matrix tool for JHA analysis is not very suitable for occupational disease risks (such as noise hazards, chemical hazards, etc.) ； 4. JHA analysis is relatively straightforward and easy for front-line personnel to grasp and understand, but it lacks quantitative analysis and is not suitable for analyzing equipment and processes ； 5. JHA lacks effective analysis tools for assessing environmental risks in the operation process, such as soil pollution, water pollution, and environmental emission risks associated with such operations ；