Airborne particulate size and concentrations in five Thoroughbred training yards in Newmarket (UK).

This research study investigates the size and concentrations of airborne particles in horse training yards in Newmarket, UK. It takes into account factors such as season and time of day, and has implications for future investigations into the how yard conditions influence airborne particles.

Objective of the Study

• The aim of this study was to provide baseline data on airborne particulates in Thoroughbred racehorse stalls in the United Kingdom.
• This is crucial as these particulates are implicated in causing lower airway inflammation in horses, but there is currently a lack of comprehensive data in this area.

Methodology

• The researchers used a nephelometer (a scientific instrument used to measure airborne particles), to document airborne particulate sizes and concentrations.
• Sampling was conducted on a summer and winter day at three different times: morning, midday, and evening.
• The particle sizes considered were those with aerodynamic diameters smaller than 2.5 μm (PM2.5) and 10 μm (PM10) – these size classifications are typically used in air quality studies to measure fine and coarse particles respectively.

Results

• The average particulate concentration ranges were found to be 0.02-0.27 mg/m in the summer and 0.01-0.37 mg/m in the winter for PM2.5. For PM10, the concentrations were 0.02-0.39 mg/m in the summer and 0.02-0.60 mg/m in the winter.
• The study found that both the season (summer or winter) and the time of day significantly affected the particulate concentrations.

Implications

• These results set a baseline for understanding the prevalence and concentration of airborne particles in horse training yards.
• This information could be vital for future studies investigating the effect of different variables (like stall cleanliness, ventilation, horse activity, etc.) on airborne particulates in similar environments.
• Ultimately, the objective is to mitigate risks to horse health by understanding and controlling the factors contributing to particulate matter in the air.