Photostationary state relation

{
  "id": "MLC-T-MET-007927",
  "term": "Photostationary state relation",
  "field": "Meteorology and atmospheric science",
  "definition": "A condition in atmospheric chemistry where the rates of formation and destruction of a chemical species by photochemical reactions are approximately equal, leading to a relatively constant concentration. This dynamic equilibrium is often observed for short-lived radicals and trace gases in the troposphere and stratosphere. A classic example involves the balance between ozone formation and destruction in the presence of nitrogen oxides.",
  "url": "https://mlchart.com/terminology/meteorology/photostationary-state-relation/"
}