Dust from arena surfaces is a significant respiratory welfare concern for horses, contributing to equine asthma and reduced exercise tolerance in horses working in dusty conditions.
Arena dust is a chronic welfare hazard for horses worked in poorly managed surfaces. Respirable particles penetrate deep into the airways, triggering inflammatory responses in susceptible horses and worsening existing respiratory disease. Horses with equine asthma show reduced exercise tolerance, coughing, and laboured breathing that reduce the quality of every work session. Regular watering of arenas — particularly before work in dry conditions — reduces dust dramatically. Horses with respiratory disease may need work suspended entirely during periods when arena surfaces are particularly dusty, as continued work in dusty conditions perpetuates airway inflammation. Environmental management is as important as medication in respiratory disease welfare.