Particulate Matter (PM₂.₅ / PM₁₀)
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Particulate matter (PM) refers to a complex mixture of solid particles and liquid droplets suspended in air. In occupational settings, particulates arise from grinding, sanding, drilling, blasting, cutting, combustion, and handling of powdered materials. Health effects depend on particle size: larger inhalable particles deposit in the upper airways, while fine respirable particles (below 10 µm) penetrate deep into the lungs and may enter the bloodstream. Chronic exposure to high levels of respirable dust causes lung diseases including pneumoconiosis, chronic bronchitis, and impaired lung function. Industrial hygiene surveys use gravimetric air sampling to measure total inhalable and respirable dust fractions.
Particulate matter (PM) monitoring helps measure airborne dust levels, including PM₁₀ and PM₂.₅, so you can spot exposure risks and verify controls on active jobsites. All particulate matter monitors from RAECO Rents are zero-calibrated or bump tested prior to rental, and our team provides fast turnaround and technical phone support to help you choose the right monitor, settings, and accessories so you can capture usable field readings quickly.
Regulatory Exposure Limits
As of March 09, 2026
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ACGIH TLV
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