■定期锻炼提供了无数的健康益处。为了保证健康,运动员的健康和表现,最佳室内空气质量,体育设施的定期维护和通风至关重要。
■这项研究评估了颗粒物的含量,低至超细范围(PM10、PM2.5和粒径范围为20-1000纳米的颗粒数浓度,即,-PNC20-1000nm),气态污染物(总挥发性有机化合物-TVOCs,CO2和O3)和舒适度参数(温度-T,相对湿度-RH)在健身俱乐部的不同功能空间(n=8),在特定的占用和通风限制下。
■在所有HCs中,人类占据导致颗粒升高(比以前报道的颗粒高2-3倍),考虑质量浓度(PM10:1.9-988.5μg/m3PM2.5:1.6-479.3μg/m3)和数量(PNC1.23×103-9.14×104#/cm3)。粗PM和细PM表示共同起源(rs=0.888-0.909),而PNC显示与颗粒质量的低-中度关联(rs=0.264-0.629)。此外,在心脏运动和健美(C&B)区域检测到高达两倍的PM和PNC,因为这些空间是最频繁的,加强职业活动的影响。在所有HC中,由于经常使用清洁产品和消毒剂(比以前的工作高2-28倍),TVOCs(0.01-39.67mg/m3)大大超过了现有的保护阈值(1.6-8.9倍)。与PM和PNC相反,工作室的TVOCs高于C&B地区(1.1-4.2倍),由于有限的通风加上较小的房间面积/体积。占用限制还导致二氧化碳比以前观察到的减少(122-6,914mg/m3),在自然通风的HC中具有最低值。最后,体育设施中RH和T的具体建议在很大程度上未得到满足,因此强调需要在这些空间中进行适当的通风程序。
Exercising on regular basis provides countless health benefits. To ensure the health, well-being and performance of athletes, optimal indoor air quality, regular maintenance and ventilation in sport facilities are essential.
This study assessed the levels of particulate, down to the ultrafine range (PM10, PM2.5, and particle number concentration in size range of 20-1,000 nm, i.e., - PNC20-1000 nm), gaseous pollutants (total volatile organic compounds - TVOCs, CO2, and O3) and comfort parameters (temperature - T, relative humidity - RH) in different functional spaces of health clubs (n = 8), under specific occupancy and ventilation restrictions.
In all HCs human occupancy resulted in elevated particles (up to 2-3 times than those previously reported), considering mass concentrations (PM10: 1.9-988.5 μg/m3 PM2.5: 1.6-479.3 μg/m3) and number (PNC 1.23 × 103 - 9.14 × 104 #/cm3). Coarse and fine PM indicated a common origin (rs = 0.888-0.909), while PNC showed low-moderate associations with particle mass (rs = 0.264-0.629). In addition, up to twice-higher PM and PNC were detected in cardiofitness & bodybuilding (C&B) areas as these spaces were the most frequented, reinforcing the impacts of occupational activities. In all HCs, TVOCs (0.01-39.67 mg/m3) highly exceeded the existent protection thresholds (1.6-8.9 times) due to the frequent use of cleaning products and disinfectants (2-28 times higher than in previous works). On contrary to PM and PNC, TVOCs were higher (1.1-4.2 times) in studios than in C&B areas, due to the limited ventilations combined with the smaller room areas/volumes. The occupancy restrictions also led to reduced CO2 (122-6,914 mg/m3) than previously observed, with the lowest values in HCs with natural airing. Finally, the specific recommendations for RH and T in sport facilities were largely unmet thus emphasizing the need of proper ventilation procedures in these spaces.