Final answer:
Chemical manufacturing, construction, and restaurants are businesses with special hazards—chemical risks communicated by the NFPA hazard diamond, construction safety hazards, and restaurant fire risks, respectively. Ensuring safety involves understanding the potential hazards, using warning systems like the hazard diamond, and abiding by safety regulations.
Step-by-step explanation:
Three businesses that may contain ‘special hazards’ include chemical manufacturing, which involves hazardous substances, construction with high-risk activities, and restaurants where there are fire risks due to cooking. In chemical manufacturing, the NFPA hazard diamond is crucial for communicating the risks associated with substances, such as their flammability, reactivity, and health-related dangers. Construction sites are prone to hazards such as falls, electrical risks, and machinery accidents, making safety regulations and preventive measures vital. Restaurants face the risk of kitchen fires, so proper fire safety practices and equipment are essential.
In the event of an industrial accident, like the discharge of carcinogens into a river, it is important to evaluate the risks based on the chemicals' residence times in the environment to determine their impact on nearby communities. In addition, pollution from heavy metals and uncontrolled radioactive sources can pose serious health consequences, making safety protocols and government regulations necessary to mitigate risks.