Potential contaminants in the gym

In addition to pollution from exercise equipment, gym ventilation systems can unintentionally draw in pollutants from outside sources, according to researchers.

Recently, a group of Chinese scientists conducted a study to investigate air quality in gyms , aiming to clarify the composition and concentration of air pollutants in gym environments. indoor exercise.

Professor Sun Yele from the Institute of Atmospheric Physics of the Chinese Academy of Sciences, and author of the study, said that over a period of 20 consecutive days, they meticulously analyzed the air using an optical machine. high-resolution aerosol mass spectrometry.

Increased breathing rate during exercise will increase the possibility of inhaling pollution particles if present in the gym - (Photo: Freepik).

Their findings, published in the journal Environmental Science & Technology Letters , show that indoor air at gyms contains higher proportions of organic aerosols (OA) than ambient air. outdoor school. Specifically, approximately 50% of inhaled particulate matter in gyms was OA, a significant increase compared to approximately 40% observed outdoors.

Additionally, scientists have identified two distinct types of OA in the gym environment. The first organic aerosol siloxane (SiOA) was found in unexpectedly high concentrations, accounting for 7-11% of total OA.

According to Professor Sun, the presence of SiOA is due to the silicone polymer lubricant used in fitness equipment during exercise. In addition, OA contained in cigarette smoke or cooking activities in neighboring spaces is also a factor that contributes to indoor air quality.

The researchers note that gym ventilation systems may unintentionally draw in pollutants from outside sources.

Therefore, Mr. Sun believes that understanding the composition and concentration of pollutants in exercise environments is important to assess the potential health risks associated with exercise, due to increased breathing rates. high levels during exercise will increase the possibility of inhaling these particles and affecting human health.

The study advocates for a comprehensive assessment of air quality at a variety of fitness facilities, taking into account factors such as equipment variety, occupancy rates and ventilation systems. Such investigations are instrumental in developing effective strategies to protect indoor air quality and reduce health risks associated with exercise.

Professor Sun also wants to expand the research by conducting tests at various gyms, to determine the prevalence of pollution particles.

He also expressed optimism about future improvements in instruments, envisioning real-time monitoring of OA and volatile organic compounds to support improved understanding of air quality. air in gyms.