Which of the following is a common method for reducing exposure to toxic substances in the workplace?

Implementing personal protective equipment (PPE) is a well-established and effective method for reducing exposure to toxic substances in the workplace. PPE includes items such as gloves, masks, goggles, and protective clothing that are designed to create a barrier between the worker and the hazardous materials they may encounter. By using PPE, workers can significantly decrease the risk of inhalation, skin contact, and other forms of exposure to toxic agents, thereby enhancing their safety and health.

In contrast, increasing the number of chemicals used could lead to higher potential for exposure and risk, which is counterproductive to safety. Providing inadequate ventilation creates an environment where toxic substances can accumulate, further increasing risks of exposure. Lastly, allowing untrained staff to handle toxic substances can lead to improper handling and significant safety hazards, as they may not be aware of the risks involved or how to manage them properly.