NaDos: A real-time, wearable, personal exposure monitor for hazardous organic vapors

SENSORS AND ACTUATORS B-CHEMICAL

卷:255

Article

Reid, Michael¹  Reid, Ray D.¹  Oswal, Prashant¹  Sullivan, Kim¹  Bhartia, Rohit²  Hug, William F.¹ 

[1] Photon Syst, Ind Pk, Covina, CA 91722 USA

[2] NASA, Jet Prop Lab, Oak Grove Dr, Pasadena, CA USA

关键词: Real-time detector;    Dosimeter;    Naphthalene;    BTEX;    UV LED sensor;    Integrated optics;    Gas sensor;    Optical device;   

DOI  :  10.1016/j.snb.2017.09.122

来源: Elsevier

【 摘 要 】

We have demonstrated an intrinsically safe, near-real-time, personal exposure monitor (PEM) for measuring naphthalene in the breathing zone of the wearer. The NaDos PEM is a fully integrated, battery powered, <1 kg PEM, small enough to be worn by personnel working in hazardous environments. The NaDos PEM was originally developed with high detection specificity for naphthalene vapor because of the wide range of health hazards association with naphthalene inhalation, but it can also measure a wide range of HOVs including benzene, toluene, xylene, naphthalene, anthracene, etc. with a real-time limit of detection less than 10 mu g/m(3). The performance of the instrument has been demonstrated across a range of naphthalene concentrations from 10 mu g/m(3) to over 100 mg/m3. Performance was found to meet or exceed NIOSH recommended acceptance criteria of +/- 25% of the true concentration, >95% of time. To deliver this accuracy in a real-world environment, the monitor accurately removes the effects of both humidity (0-95% RH) and temperature (0 degrees C to >45 degrees C). A major feature is its real-time nature, giving highly specific, high sensitivity, real time data which is a superior predictor of human health outcomes. (C) 2017 Elsevier B.V. All rights reserved.

【 授权许可】

Free