Stay compliant with MSHA's new silica standard

Understand if you're compliant, pinpoint sources of exposure, and put effective controls in place.

How APT helps with silica limit compliance

Sample workers with real-time monitors and body cams

Our wireless MINIMA sensors measure silica concentrations up to four times per minute.

Track compliance across your workforce

Instantly see if you're below the Permissible Exposure Limits (PEL) for respirable crystalline silica.

Pinpoint sources of overexposure

Use the analytics tool to see which tasks contributed most to overexposure, and put targeted controls in place.

Quantify the effectiveness of engineering contols

Quantify the before/after effect of engineering controls with statistical accuracy.


Powered by real-time dust sensors

Monitor your workforce with personal monitors, or entire areas with stationary monitors. We developed our monitors in-house to integrate seamlessly with our software.

Stationary monitor


Personal monitor


Data quality

Independently tested and validated air quality data

We’ve partnered with AQ-SPEC and the EPA to guarantee reliable air quality data.

With shift average samples, we don't know what's contributing to exposures.

But using APT's real-time particulate monitoring, we're able to understand which tasks contribute the most to their exposure, and justify with data where we need to put our money and effort.

Health & Hygiene Manager

Leading Canadian mining company

How a leading producer of aggregates manages their fugitive dust risk with APT

Measuring opacity in real- time and collecting defensible data against complaints.

See how APT compares

Real-time data
PM 1.0, PM 2.5, PM 10
Integrated cloud
Automatic GPS
Real-time dust mapping
Shift-based notifications
Tipping indicator
Integrated weather data
Customized reports
Particle size distribution
Wearable & area monitoring options
External data integration
Time-series AI
Tracking engineering controls

Better decisions through real-time insights