Research Center of Sports Equipment Engineering Technology of Hubei Province, Wuhan Sports University, Wuhan 430079, China.
Key Laboratory of Sports Engineering of General Administration of Sport of China, Wuhan Sports University, Wuhan 430079, China.
Int J Environ Res Public Health. 2023 Jan 19;20(3):1828. doi: 10.3390/ijerph20031828.
The volatile organic compounds (VOCs) released from a plastic track can cause stimulation and damage to the human body; the temperature, relative humidity (RH) and air exchange rate (AER) have a significant impact on the release of VOCs from materials. In this study, we used a 0.1 m environmental chamber; a qualitative and quantitative analysis of VOCs released from a plastic track was conducted by gas chromatography-mass spectrometry with a temperature range of 23-60 °C, RH of 5-65% and AER of 0.5-1.5 h. The formation rate, the speciation, the nature of the main compounds and the mass concentration of VOCs under different environmental conditions were determined. It is shown that with the increase of temperature, the concentration of some main VOCs gradually increased and the and were larger by 736.13 μg·m and 984.22 μg·m at 60 °C, respectively. Additionally, with the increase of RH, the concentration of different VOCs gradually increased. Nonetheless, the change in RH had no effect on the concentration percentage of different VOCs in the total VOC. With the increase in AER, the concentration of different main VOCs significantly declined, as did the VOC detection rate. When the AER was increased from 0.5 h to 1.5 h, the decreased by 206.74-254.21 μg·m and decreased by 73.06-241.82 μg·m, and the number of non-detected VOC monomers increased from 1 to 7-12 species. The conclusion is that the increase in temperature and RH can promote the emission of VOCs from a plastic track, while increasing AER significantly reduces the concentrations of VOCs. Environmental temperature mainly causes the changes in the concentrations of different VOCs, and RH is a main factor leading to the variation in the detection rate of main VOCs. Overall, the release of VOCs from a plastic track is affected by environmental temperature, AER and RH in sequence. Through this paper, we clarify the effects of ambient temperature, RH and AER on the emission of VOCs from a plastic track, and furthermore, we determine the release characteristics of plastic track VOCs.
挥发性有机化合物（VOCs）从塑料跑道中释放出来会对人体造成刺激和损害；温度、相对湿度（RH）和空气交换率（AER）对材料中 VOCs 的释放有显著影响。在本研究中，我们使用了一个 0.1 m 的环境室；通过气相色谱-质谱联用仪对塑料跑道在温度范围为 23-60°C、RH 为 5-65%和 AER 为 0.5-1.5 h 时释放的 VOCs 进行了定性和定量分析。确定了不同环境条件下 VOCs 的生成速率、形态、主要化合物的性质和质量浓度。结果表明，随着温度的升高，一些主要 VOCs 的浓度逐渐升高，在 60°C 时，分别增加了 736.13μg·m 和 984.22μg·m。此外，随着 RH 的增加，不同 VOCs 的浓度逐渐增加。然而，RH 的变化对总 VOC 中不同 VOCs 的浓度百分比没有影响。随着 AER 的增加，不同主要 VOCs 的浓度显著下降，VOC 的检测率也随之下降。当 AER 从 0.5 h 增加到 1.5 h 时， 减少了 206.74-254.21μg·m， 减少了 73.06-241.82μg·m，并且未检测到的 VOC 单体数量从 1 增加到 7-12 种。结论是，温度和 RH 的升高可以促进塑料跑道中 VOCs 的排放，而增加 AER 则显著降低 VOCs 的浓度。环境温度主要导致不同 VOCs 浓度的变化，而 RH 是导致主要 VOCs 检测率变化的主要因素。总体而言，塑料跑道中 VOCs 的释放依次受到环境温度、AER 和 RH 的影响。通过本文，我们阐明了环境温度、RH 和 AER 对塑料跑道中 VOCs 排放的影响，并进一步确定了塑料跑道 VOCs 的释放特征。
