Workplace health and safety is a field that is concerned with the safety, health, and welfare of employees. Handbooks and research exist to provide guidance on best practices and new advances in the field.
When safety and health are at risk, it is important to stop whatever it is you are doing and report it immediately to prevent any accidents from occurring. Warn those working around you, and report it to a supervisor so he or she can investigate further. Failing to do this can result in accusations of negligence against you.