PM10 (PM₁₀)
Coarse Inhalable Particulate Matter (≤ 10 µm)
Coarse airborne particulate comprising dust, pollen, spores, and mechanical abrasion debris.
What is PM10 (Coarse Inhalable Particulate Matter (≤ 10 µm))?
Particulate Matter 10 (PM10) encompasses airborne particles with an aerodynamic diameter of 10 micrometers or less. This category includes coarse fraction dust, construction debris, road salt, fungal spores, and botanical pollen. While larger than PM2.5, PM10 particles are readily inhaled into the upper respiratory tract, irritating tracheobronchial airways.
- •Movement across untreated carpets and dusty surfaces
- •Pet dander, biological shedding, and fungal spore liberation
- •Indoor renovation, drywall sanding, and paint dust
- •Poorly maintained ventilation ductwork blowing legacy settling dust
- •Unpaved road travel, vehicular tire and brake wear
- •Civil construction, demolition, and earthmoving activities
- •Windblown crustal desert dust and agricultural tilling
- •Industrial quarrying, crushing, and cement manufacturing
Health Effects of PM10
- •Severe nasal congestion, allergic rhinitis, and throat scratching
- •Persistent dry cough and bronchospasm in asthmatic individuals
- •Eye irritation and conjunctivitis from direct mechanical contact
- •Accelerated decline in pulmonary lung function
- •Increased susceptibility to chronic microbial respiratory infections
- •Aggravation of preexisting chronic respiratory illnesses
Concentration Levels & Safety Guidelines
Standardized thresholds to identify when active ventilation and air filtration intervention is required.
Clean ambient air suitable for unconstrained outdoor and indoor occupancy.
Dust concentrations noticeable; respiratory irritation possible for sensitive individuals.
Noticeable haze and throat discomfort across general building occupants.
High particulate density; industrial filtration and active dust suppression required.
| Organization | Guideline Limit | Exposure Timeframe |
|---|---|---|
| World Health Organization (WHO) | 15 µg/m³ | Annual Mean Target |
| World Health Organization (WHO) | 45 µg/m³ | 24-Hour Mean Target |
| US EPA NAAQS | 150 µg/m³ | 24-Hour Standard |
How DLE Measures PM10
High-angle forward scattering laser sensors measure pulse amplitude of coarse particles to isolate size bins between 2.5 µm and 10 µm in continuous airstreams.
Industrial and commercial grade particle tracking for cleanrooms, logistics, and offices.
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