What is one method to prevent employee exposure to hazardous atmospheres?

Providing ventilation is a crucial method to prevent employee exposure to hazardous atmospheres. Proper ventilation helps to dilute and remove harmful substances in the air, such as dust, gases, vapors, or fumes, which can accumulate in poorly ventilated spaces, especially in excavation sites or confined areas. By ensuring that fresh air circulates and that contaminants are effectively removed, ventilation plays a fundamental role in maintaining a safer working environment.

This approach is essential in any operation where hazardous materials are present, as it directly addresses the air quality that workers are exposed to. It also works in conjunction with other safety measures, such as personal protective equipment (PPE), to create a comprehensive safety strategy. The other methods listed, while potentially helpful in certain situations, do not directly impact air quality or mitigate exposure to hazardous atmospheres.