Aitken dust counter

{
  "id": "MLC-T-MET-003421",
  "term": "Aitken dust counter",
  "field": "Meteorology and atmospheric science",
  "definition": "An instrument used to measure the concentration of very small atmospheric aerosol particles, typically those with radii less than 0.1 micrometers, known as Aitken nuclei. It operates by rapidly expanding a sample of air, causing water vapor to condense on the particles, making them visible for counting. This device provides data on atmospheric cleanliness and cloud condensation nuclei.",
  "synonyms": [
    "Aitken nucleus counter"
  ],
  "see_also": [
    "dust counter"
  ],
  "url": "https://mlchart.com/terminology/meteorology/aitken-dust-counter/"
}