Wearable Devices Used for Short Term Exposure Monitoring

What is Short Term Exposure Monitoring?

Short Term Exposure Monitoring is the act of monitoring a worker's average exposure to hazardous airborne substances over a period of approximately 15 minutes.

Threshold Limit Values (TLVs) are worker limits to hazardous airborne substances put in place by regulatory bodies, which include Short Term Exposure Limits (STELs). STELs are often monitored in conjunction with Long Term Exposure using a Time-weighted Average (TWA) concentration.

Benefits of Short Term Exposure Limit (STEL) Monitoring

STELs are usually determined by governmental or regulatory bodies and often mandated. Benefits of STEL monitoring is improved employee health and a reduction of lost-time injuries and occupational health lawsuits.

How Do the Following Wearables Provide Short Term Exposure Monitoring?

There are two leading methods of monitoring personal toxic gas exposure for industrial workers. The most accurate way is to provide workers with a personal toxic gas monitor, which monitors the air directly in the worker's vicinity at all times. An alternative approach is to provide workers with location tracking devices and mount fixed toxic gas monitors within the working environment where the threats are expected to occur, then combine the two data sources and monitor personal limits remotely using software.

Due to power requirements and technology constraints, most personal gas monitors on the market are relatively bulky and will not always be carried by all personnel that may be exposed to threats. However, personal toxic gas monitors come with the benefit of being more accurate and can alert the worker immediately when they have reached a limit. Alternatively fixed or wall-mounted sensors in combination with wearable location tracking devices are far more prevalent, affordable, and lightweight, but will require third-party software to combine the air-quality measurements with worker locations. Also, without a mobile or wearable communication device to alert the worker, they may have no way to know when they have reached a short-term exposure limit.

Related Workplace Applications

Employee Location Tracking, Occupational Health and Safety & Long Term Exposure Monitoring


RealWear HMT-1

Worn on the Head and used for Industrial applications.
The RealWear HMT-1 provides the foundation for an integrated workforce. Use it in wet, dusty, hot, dangerous, and loud industrial...

Zebra Dart Tag

Worn on the Body (Anywhere) and used for Industrial applications.
This small device tag can monitor and track the location of assets and personnel visibility in real time using Ultra-Wideband (UWB)...

Leica Pegasus Backpack

Worn on the Torso and used for Industrial applications.
The Leica Pegasus Backpack is a reality capture sensor platform that provides a mobile mapping solution. The wearable backpack contains 5...

Zebra WT6000 Wearable Computer

Worn on the Wrist and used for Industrial applications.
The Zebra WT6000 is a multipurpose computing device that is worn on the wrist and a part of Zebra's line of Total Wearable Solutions. It is...

Deloitte Smart Helmet

Worn on the Head and used for Industrial applications.
The Smart Helmet Clip is an industrial-grade wearable device that facilitates safer productivity in heavy industries. It has a modular...