MSHA Issues Health Alert on Ammonia Exposure Risks
MSHA is warning mine operators and workers about the health risks of ammonia exposure, emphasizing ventilation, monitoring, training and proper protective equipment to prevent serious injuries.
- By Stasia DeMarco
- Feb 13, 2026
The Mine Safety and Health Administration (MSHA) has issued a health alert warning mine operators and workers about the dangers of ammonia exposure and the importance of proper controls, training, and protective equipment.
Ammonia is a colorless gas with a strong, irritating odor that is used in a variety of industrial applications. While its odor can provide an early warning, exposure to elevated ammonia concentrations can cause serious health effects, including eye and skin burns, respiratory irritation, coughing, and breathing difficulties. High-level exposure can result in severe lung damage and may be life-threatening.
MSHA emphasized that ammonia hazards can arise during storage, handling, or equipment failures, including leaks from systems containing the chemical. The agency urged mine operators to ensure that workers are trained to recognize symptoms of ammonia exposure and understand emergency response procedures.
The alert also highlights the importance of ventilation, monitoring, and hazard communication practices, including ensuring chemical safety information is readily accessible. MSHA encouraged operators to review safety plans, reinforce safe work procedures, and confirm that appropriate personal protective equipment is available and used when ammonia exposure is possible.
MSHA said prompt identification and correction of ammonia-related hazards can help prevent serious injuries and protect worker health.
About the Author
Stasia DeMarco is the Content Editor for OH&S.