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Understanding where particulate matter (PM) comes from is essential for effective air quality management — especially in complex environments where multiple sources coexist.

At Particle Vision, we specialize in the precise identification of PM pollution sources through automated morpho-chemical particle analysis and advanced data modeling through our propietary approach ASPA MC2®. Our methodology allows public agencies, consultants, and industrial stakeholders to go beyond simple concentration measurements and determine:

What is in the air (chemical composition & morphological properties)

Where it likely comes from (road traffic, industry, biomass burning, railways, dust, etc.)

How much each source contributes to the total PM load

Our Approach

We select the analytical approach best suited to your specific challenge—whether it’s bulk analysis, single-particle analysis, or a tailored combination of both. Our goal is always to deliver the clearest, most actionable results.

Our proprietary ASPA MC2® methodology combines:

  1. Targeted Sampling
    at critical exposure points, depending on the source and context.

  2. Automated Analysis of Thousands of Particles
    using high-resolution methods to determine particle morphology and elemental composition.

  3. Machine-Learning Classification
    to compare each particle’s fingerprint against validated source libraries.

  4. Source Attribution & Reporting
    providing decision-ready insights tailored to technical, legal, or policy needs.

Why Identifying the PM Pollution Sources Matters

Most air quality systems measure how much PM is present — but they don't explain where it comes from. This limits the ability to:

  • Design targeted mitigation measures

  • Resolve conflicts or attribute responsibilities

  • Assess the real impact of infrastructure or regulation

Our solution closes that gap by making invisible sources visible, even in environments with overlapping emitters.


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Particle Vision GmbH
Passage du Cardinal 13B
CH-1700 Fribourg

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