TY - JOUR
T1 - Personal monitoring of ozone exposure
T2 - A fully portable device for under $150 USD cost
AU - Cao, Tingting
AU - Thompson, Jonathan E.
N1 - Funding Information:
The authors wish to thank the volunteers for participation in this study. The research has been funded by the State of Texas/Texas Tech University via new investigator start-up funding. The Texas Tech University Human Subjects Committee has approved the protocol outlined in this manuscript (IRB 505012). Tingting Cao collected and reported data, generated figures for publication, and authored the manuscript. Jonathan Thompson conceived the project idea, procured and assembled parts, provided project guidance, and edited the manuscript.
Publisher Copyright:
© 2015 Elsevier B.V.
PY - 2016/3/1
Y1 - 2016/3/1
N2 - An inexpensive and portable device for monitoring personal ozone exposure is described and its performance characterized. The device is built from commercially available components, exhibits time resolution of approx. 60 s, and highest analytical sensitivity under 100 ppbv ozone. The sensor has been employed to provide insights into ozone exposure for 8 volunteers living in Lubbock, Texas during the winter months of 2015. Consistent with previous literature, the results indicate the volunteers were exposed to highest levels of ozone when outdoors during daylight hours. Exposure to ozone indoors was typically only a fraction (0.3-0.7) of the dose observed during times spent outdoors. The sensing system described requires minimal technical skills to assemble and use at a cost of approximately $150 USD per unit (see Table 1). The device's batteries provide power for 8-10 h on a single charge and the sensor can be re-used many times after recharging the battery pack. A major advantage of the sensor over chromogenic filters for exposure monitoring is the collection of time-series data that allows users to better understand when and where individuals are exposed to highest ozone concentrations. The device may prove useful for industries requiring a low-cost solution to monitor employee exposure to ozone for specific work environments.
AB - An inexpensive and portable device for monitoring personal ozone exposure is described and its performance characterized. The device is built from commercially available components, exhibits time resolution of approx. 60 s, and highest analytical sensitivity under 100 ppbv ozone. The sensor has been employed to provide insights into ozone exposure for 8 volunteers living in Lubbock, Texas during the winter months of 2015. Consistent with previous literature, the results indicate the volunteers were exposed to highest levels of ozone when outdoors during daylight hours. Exposure to ozone indoors was typically only a fraction (0.3-0.7) of the dose observed during times spent outdoors. The sensing system described requires minimal technical skills to assemble and use at a cost of approximately $150 USD per unit (see Table 1). The device's batteries provide power for 8-10 h on a single charge and the sensor can be re-used many times after recharging the battery pack. A major advantage of the sensor over chromogenic filters for exposure monitoring is the collection of time-series data that allows users to better understand when and where individuals are exposed to highest ozone concentrations. The device may prove useful for industries requiring a low-cost solution to monitor employee exposure to ozone for specific work environments.
KW - 29 CFR 1915
KW - 29 CFR 1926
KW - OSHA 29 CFR 1910
KW - Ozone exposure
KW - Personal monitoring
UR - http://www.scopus.com/inward/record.url?scp=84948134834&partnerID=8YFLogxK
U2 - 10.1016/j.snb.2015.10.090
DO - 10.1016/j.snb.2015.10.090
M3 - Article
AN - SCOPUS:84948134834
VL - 224
SP - 936
EP - 943
JO - Sensors and Actuators, B: Chemical
JF - Sensors and Actuators, B: Chemical
SN - 0925-4005
ER -