When working inside of a confined space, the atmosphere must be monitored _______________.

Monitoring the atmosphere continuously in a confined space is crucial for ensuring the safety of workers. Confined spaces can have fluctuating conditions due to a variety of factors, such as chemical reactions, equipment operation, or changes in temperature. Continuous monitoring allows for real-time detection of hazards like toxic gases, insufficient oxygen levels, or flammable atmospheres, enabling prompt actions to ensure the safety of everyone involved.

While checking the atmosphere before entering, after work begins, or once per shift can provide initial information about the conditions, these methods do not provide the necessary level of awareness and response needed in potentially hazardous environments. Continuous monitoring mitigates the risk of exposure and allows for immediate evacuation or remediation if dangerous conditions arise. This approach aligns with safety regulations and best practices in confined space work, which prioritize worker health and safety at all times.