Bradley Ries
Current Organizations / Institutes
The organizations/institutes from the scholar's latest article
Research Subjects
Bradley Ries has a total of 18 co-authors. Here are the top co-authors by number of shared publications:
- Armistead G. Russell
Georgia institute of Technology, Atlanta, GA 30332, USA
2 shared publications - Dien Wu
Division of Geological and Planetary Sciences, California Institute of Technology, Pasadena, CA 91125, USA
2 shared publications - Francois L. H. Tissot
The Isotoparium, Division of Geological and Planetary Sciences, California Institute of Technology, Pasadena, CA 91125, USA
2 shared publications - Haroula D. Baliaka
California Institute of Technology, Pasadena, CA 91125, USA
2 shared publications - John H. Seinfeld
California Institute of Technology
2 shared publications - Nga Lee Ng
California Institute of Technology, Pasadena, CA 91125, USA
2 shared publications
Latest Publications
- Open Access
- 30 October 2026
- Published by American Association for the Advancement of Science (AAAS) in Science Advances
- Vol. 12 (44)
Fire at the boundary: Airborne toxic metals from the 2025 Los Angeles urban firestorm
Urban fire smoke is chemically distinct from wildland fire smoke yet remains poorly understood. Using real-time airborne trace element measurements during the 2025 Los Angeles Eaton urban firestorm, we show that the plume evolved rapidly as fire transitioned from structures to wildland, tracked hourly by the potassium-to-lead ratio. Compared to wildfire smoke, the urban plume was enriched more than 50-fold in lead, 7-fold in halogens, and 3-fold in arsenic, a toxic mixture linked to burning vehicles, electronics, and building materials, a fundamentally different fuel from conventional wildland vegetation. During peak structural burning, we estimate that approximately 7 million residents (range, 4.3 to 8.0 million) experienced 24-hour lead concentrations exceeding 50 nanograms per cubic meter, over 80 times background levels. Unlike wildfire smoke that has been the focus of decades of air quality research, this plume represents an emerging class of urban fire air pollution that demands revised exposure frameworks and emergency response protocols as fires increasingly burn into cities.
- 30 October 2026
- Published by American Association for the Advancement of Science (AAAS) in Science Advances
- Vol. 12 (44)
Open AccessFire at the boundary: Airborne toxic metals from the 2025 Los Angeles urban firestorm
Urban fire smoke is chemically distinct from wildland fire smoke yet remains poorly understood. Using real-time airborne trace element measurements during the 2025 Los Angeles Eaton urban firestorm, we show that the plume evolved rapidly as fire transitioned from structures to wildland, tracked hourly by the potassium-to-lead ratio. Compared to wildfire smoke, the urban plume was enriched more than 50-fold in lead, 7-fold in halogens, and 3-fold in arsenic, a toxic mixture linked to burning vehicles, electronics, and building materials, a fundamentally different fuel from conventional wildland vegetation. During peak structural burning, we estimate that approximately 7 million residents (range, 4.3 to 8.0 million) experienced 24-hour lead concentrations exceeding 50 nanograms per cubic meter, over 80 times background levels. Unlike wildfire smoke that has been the focus of decades of air quality research, this plume represents an emerging class of urban fire air pollution that demands revised exposure frameworks and emergency response protocols as fires increasingly burn into cities.
- Open Access
- 23 April 2026
- Published by American Chemical Society (ACS) in ChemRxiv
Fire at the boundary: airborne toxic metals from the 2025 Los Angeles urban firestorm
Urban fire smoke is chemically distinct from wildland fire smoke, yet remains poorly understood. Using real-time airborne trace element measurements during the 2025 Los Angeles Eaton urban firestorm, we show that the plume evolved rapidly as fire transitioned from structures to wildland, tracked hourly by the potassium-to-lead ratio. Compared to wildfire smoke, the urban plume was enriched more than 50-fold in lead, 7-fold in halogens, and 3-fold in arsenic, a toxic mixture linked to burning vehicles, electronics, and building materials, a fundamentally different fuel from conventional wildland vegetation. During peak structural burning, we estimate approximately 5 million residents experienced 24-hour lead concentrations exceeding 50 ng m −3 , over 80 times background levels. Unlike wildfire smoke that has been the focus of decades of air quality research, this plume represents an emerging class of urban fire air pollution that demands revised exposure frameworks and emergency response protocols as fires increasingly burn into cities.
- 23 April 2026
- Published by American Chemical Society (ACS) in ChemRxiv
Open AccessFire at the boundary: airborne toxic metals from the 2025 Los Angeles urban firestorm
Urban fire smoke is chemically distinct from wildland fire smoke, yet remains poorly understood. Using real-time airborne trace element measurements during the 2025 Los Angeles Eaton urban firestorm, we show that the plume evolved rapidly as fire transitioned from structures to wildland, tracked hourly by the potassium-to-lead ratio. Compared to wildfire smoke, the urban plume was enriched more than 50-fold in lead, 7-fold in halogens, and 3-fold in arsenic, a toxic mixture linked to burning vehicles, electronics, and building materials, a fundamentally different fuel from conventional wildland vegetation. During peak structural burning, we estimate approximately 5 million residents experienced 24-hour lead concentrations exceeding 50 ng m −3 , over 80 times background levels. Unlike wildfire smoke that has been the focus of decades of air quality research, this plume represents an emerging class of urban fire air pollution that demands revised exposure frameworks and emergency response protocols as fires increasingly burn into cities.