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Wearable sensors for personal temperature exposure assessments: A comparative study
Elizabeth Bailey1, Christopher Fuhrmann2, Jennifer Runkle3
1Department of Geography & Planning, Appalachian State University, Boone, NC, USA.
Environmental Research
|November 12, 2019
Summary
Personal heat sensors accurately measure ambient temperature, but sensor type and placement significantly impact readings. Future research must consider these variations for precise heat exposure data.
Area of Science:
- Environmental Health
- Sensor Technology
- Human Health
Background:
- Rising global temperatures necessitate accurate heat exposure measurement for public health.
- Personal sensors offer continuous, mobile ambient temperature monitoring.
- Limited research exists on comparing different personal sensor types and placements.
Purpose of the Study:
- To validate the accuracy of various low-cost personal ambient temperature sensors.
- To assess the influence of sensor placement on human subjects.
- To evaluate sensor performance against fixed weather station data.
Main Methods:
- Field exposure and calibration studies were conducted.
- Multiple wearable sensors (HOBOs, iButtons, Kestrel) were evaluated.
- Bland-Altman analysis, correlation, and index of agreement were used for validation.
Main Results:
- Significant differences in temperature measurements were observed based on sensor type.
- Sensor placement on participants also led to varied readings.
- Sensor performance varied when compared to fixed weather station monitors.
Conclusions:
- Personal ambient temperature sensor accuracy is dependent on both the device and its placement.
- Future studies should account for these sensor-specific and placement-related variations.
- This research informs the selection and use of personal sensors for heat exposure monitoring.
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