E-book~Figure 99

Thread Content

Answer to Figure 99: Environment and occupational health: 1. The exhaust openings of the ventilation systems are enclosed by walls, preventing toxins from dissipating; moreover, they are located along pathways used by people. 2. The ventilation ducts lack any collection devices, resulting in poor ventilation efficiency. 3. There are no warning signs, informational plaques, or detection/alarm systems in place when toxic substances are used, and the floors and walls are rough, allowing toxins to adhere to them easily. 4. Hazardous waste is not collected in a sorted manner, and the methods used for collecting hazardous waste are incorrect. 5. Hazardous chemicals placed in open containers are prone to falling to the ground, which may lead to poisoning incidents and environmental pollution. 6. Tasks involving severe occupational hazards and those with moderate occupational hazards are carried out in the same area. Safety issues include: 1. There are basically no fire-fighting facilities in areas prone to fires and explosions. 2. The wiring of electrical equipment is not proper; non-explosion-proof electrical devices and switches are used in such areas. 3. There are insufficient warning signs, as well as no safety operating procedures, emergency response measures, safety data sheets for chemicals, or safety labels. 4. Hazardous chemicals are stored together in areas where they are used. 5. Mechanical equipment lacks adequate safety protection mechanisms, and the random placement of workpieces poses a risk of injury. 6. Oil products and hazardous chemicals can spill onto the ground, leading to slips, poisoning, suffocation, and fires