Driving theory questions

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What is PM10?

  • Incorrect: An eco-friendly car classification.
  • Incorrect: A traffic safety objective.
  • Correct: Small harmful particles.
  • Incorrect: Premiums for eco-friendly car purchases.

Inhalable particles, PM10, are microscopic particles. PM10 stands for ‘particulate matter 10’ and indicates the mass of particles with a diameter of less than 10 micrometres (millionth of a meter). These particles can be inhaled and the smallest ones can get down into the lungs.” (Swedish Transport Administration)


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