What is the best way to monitor the environment during torch work?

Having a dedicated fire watch trained on hazards and safety procedures is crucial during torch work because this individual is responsible for continuously monitoring the work environment for potential fire hazards, ensuring that safety protocols are strictly followed, and being ready to take immediate action in an emergency. This person has specific training to identify risks associated with hot work and can effectively manage any fire-related incidents that may arise, making the workplace significantly safer.

While other options might have some merit—like using thermal imaging cameras to identify hot spots or conducting air quality testing for hazardous fumes—these methods do not provide the ongoing vigilance that a dedicated fire watch does. Personal observations are valuable, but they may not be systematic or thorough enough, lacking the focused training that a fire watch provides to mitigate risks specifically related to torch operations.