Air basin

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An air basin is an area within a ring or partial ring of mountains that in the absence of winds holds air and smog within the area.

[1] An air basin means a land area with generally similar meteorological and geographic conditions throughout. California is currently divided geographically into 15 air basins for the purpose of managing the air resources of the State on a regional basis.

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References

  1. "Air Basin Definition". Law Insider. Retrieved 2024-08-15.