哮喘联盟

   摘要
   引言：来自可燃烟草的二手烟(SHS)能够导致多种疾病。已经制定多项政策来预防室内吸烟导致的SHS暴露，从而降低非吸烟者的健康风险。然而，很少有政策来制止室内电子烟(ECIG)使用，且很少有研究对二手ECIG气雾剂暴露的影响进行评估。
   方法：在一个大房间内进行2天ECIG事件后检测室内空气质量。采用2个装置检测细颗粒物（PM）：微粒气动直径为2.5μm或更小的PM的含量(PM2.5)。在ECIG事件发生前、发生的2天及事件发生的后一天对PM2.5进行检测。同时对事件发生酒店的餐厅和旁边酒店的餐厅进行PM2.5检测。
   结果：在事件进行的6个时间点，有59-86位主动ECIG使用者在房间内（房间体积为4023m3）。在事件进行过程中，PM2.5的中值浓度从基线的1.92-3.20 μg/m3达到311.68 μg/m3(四分位间距IQR 253.44-411.84 μg/m3)-818.88 μg/m3(四分位间距IQR 760.64-975.04 μg/m3) 。
   结论：ECIG 事件中的PM2.5浓度比之前在允许吸烟的咖啡厅和酒吧里测得的浓度高。本研究表明室内ECIG的使用使不吸烟者暴露于二手ECIG气雾剂中。监管机构应该考虑制定相应的政策：在那些禁用可燃烟草的地方也需禁用ECIG。

 

（苏欣 审校）
TobControl. 2016Feb15.pii:tobaccocontrol-2015-052772.doi:10.1136/tobaccocontrol-2015-052772. [Epub ahead of print]


 

Electronic cigarette use and indoor air quality in a natural setting.
 

Soule EK1, Maloney SF1, Spindle TR1, Rudy AK1, Hiler MM1, Cobb CO1.
 

Abstract
INTRODUCTION:Secondhand smoke (SHS) from combustible cigarettes causes numerous diseases. Policies have been developed to prevent SHS exposure from indoor cigarette use to reduce health risks to non-smokers. However, fewer policies have been implemented to deter electroniccigarette (ECIG) use indoors, and limited research has examined the impact of secondhand exposure to ECIG aerosol.
METHODS:Indoor air quality was measured at a 2-day ECIG event held in a large room at a hotel. Fine particulate matter (PM) was measured using 2 devices that measured concentrations of PM 2.5 μm aerodynamic diameter or smaller (PM2.5). Measurements were taken before the event, over 2 days when the event was ongoing, and the day after the event. PM2.5 measurements were also taken from the restaurant at the hotel hosting the event and a restaurant at a nearby hotel.
RESULTS:During 6 time points when the event was ongoing, between 59 and 86 active ECIG users were present in the event room (room volume=4023 m3). While the event was ongoing, median PM2.5 concentrations in the event room increased from a baseline of 1.92-3.20 μg/m3 to concentrations that ranged from 311.68 μg/m3 (IQR 253.44-411.84 μg/m3) to 818.88 μg/m3 (IQR 760.64-975.04 μg/m3).
CONCLUSIONS:PM2.5 concentrations observed at the ECIG event were higher than concentrations reported previously in hookah cafés and bars that allow cigarette smoking. This study indicates that indoor ECIG use exposes non-users to secondhand ECIG aerosol. Regulatory bodies should consider establishing policies that prohibit ECIG use anywhere combustible cigarette use is prohibited.
 

TobControl. 2016Feb15.pii:tobaccocontrol-2015-052772.doi:10.1136/tobaccocontrol-2015-052772. [Epub ahead of print]