Community Air Monitoring Meets Geometric Non-negative Matrix Factorization: Source Attributions in Curtis Bay

Bora Jin, Bonita Salmerón, David McClosky, David Hagan, Russell Dickerson, Matthew Aubourg, Ryan Auvil, Laura Schmidt, Gregory Sawtell, Christopher Heaney, Abhirup Datta
Oct 4, 2025

  • Identify major sources for particular matters, black carbon, and gases in Curtis Bay, Baltimore.

  • Apply a geometric source apportionment approach yielding a population-level estimand with consistency guarantee.

Non-negative matrix factorization Source apportionment Identifiability

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