Eshleman Emily J, LeBlanc Mallory, Rokoff Lisa B, Xu Yinyin, Hu Rui, Lee Kachiu, Chuang Gary S, Adamkiewicz Gary, Hart Jaime E
Department of Environmental Health, Harvard T.H. Chan School of Public Health, 401 Park Drive, Suite 401 East, Landmark Center, Boston, MA, USA.
Department of Dermatology, Massachusetts General Hospital, Boston, MA, USA.
Environ Health. 2017 Mar 29;16(1):30. doi: 10.1186/s12940-017-0239-z.
Occupational exposures to ultrafine particles in the plume generated during laser hair removal procedures, the most commonly performed light based cosmetic procedure, have not been thoroughly characterized. Acute and chronic exposures to ambient ultrafine particles have been associated with a number of negative respiratory and cardiovascular health effects. Thus, the aim of this study was to measure airborne concentrations of particles in a diameter size range of 10 nm to 1 μm in procedure rooms during laser hair removal procedures.
TSI Model 3007 Condensation Particle Counters were used to quantify the particle count concentrations in the waiting and procedure rooms of a dermatology office. Particle concentrations were sampled before, during, and after laser hair removal procedures, and characteristics of each procedure were noted by the performing dermatologist.
Twelve procedures were sampled over 4 days. Mean ultrafine particle concentrations in the waiting and procedure rooms were 14,957.4 particles/cm and 22,916.8 particles/cm (p < 0.0001), respectively. Compared to background ultrafine particle concentrations before the procedure, the mean concentration in the procedure room was 2.89 times greater during the procedure (p = 0.009) and 2.09 times greater after the procedure (p = 0.007). Duration of procedure (p = 0.006), body part (p = 0.013), and the use of pre-laser lotion/type of laser (p = 0.039), were the most important predictors of ultrafine particle concentrations. Use of a smoke evacuator (a recommended form of local exhaust ventilation) positioned at 30.5 cm from the source, as opposed to the recommended 1-2 in., lowered particle concentrations, but was not a statistically significant predictor (p = 0.49).
Laser hair removal procedures can generate high exposures to ultrafine particles for dermatologists and other individuals performing laser hair removal, with exposure varying based on multiple determinants.
激光脱毛是最常见的光美容手术，在此过程中产生的羽流中的超细颗粒职业暴露尚未得到充分表征。急性和慢性暴露于环境超细颗粒与许多负面的呼吸和心血管健康影响有关。因此，本研究的目的是测量激光脱毛手术期间手术室中直径范围为10纳米至1微米的空气中颗粒浓度。
使用TSI 3007型冷凝粒子计数器对皮肤科诊所的候诊室和手术室中的粒子计数浓度进行量化。在激光脱毛手术前、手术期间和手术后对颗粒浓度进行采样，并由实施手术的皮肤科医生记录每个手术的特征。
在4天内对12个手术进行了采样。候诊室和手术室中的平均超细颗粒浓度分别为14,957.4个颗粒/立方厘米和22,916.8个颗粒/立方厘米（p < 0.0001）。与手术前的背景超细颗粒浓度相比，手术室中的平均浓度在手术期间高2.89倍（p = 0.009），在手术后高2.09倍（p = 0.007）。手术持续时间（p = 0.006）、身体部位（p = 0.013）以及术前乳液的使用/激光类型（p = 0.039）是超细颗粒浓度的最重要预测因素。使用距离源30.5厘米处的烟雾排出器（一种推荐的局部排气通风形式），而不是推荐的1 - 2英寸，可降低颗粒浓度，但不是统计学上显著的预测因素（p = 0.49）。
激光脱毛手术会使皮肤科医生和其他进行激光脱毛的人员高暴露于超细颗粒中，暴露程度因多种因素而异。
