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SUMMARY:Contaminants of Emerging Concern from Wildland-Urban Interface Fire
 s
LOCATION:Chemistry A101
TZID:America/Denver
DTSTART:20251001T160000
UID:2026-07-18-20-38-38@natsci.colostate.edu
DTSTAMP:20260718T203838
Description:About the seminar:\n\nWildfires in the wildland-urban interface
  (WUI) are an escalating concern\, yet their impacts remain poorly underst
 ood because of unpredictable fire dynamics and the concurrent combustion o
 f vegetation and manmade materials. Characterizing the chemical footprint 
 of WUI fires is essential for assessing public health risks and guiding th
 e restoration of affected sites. Among contaminants of emerging concern\, 
 per- and polyfluoroalkyl substances (PFAS) are widely used in consumer pro
 ducts\; however\, their release and accumulation in soils during WUI fires
  remain largely unexplored. To address this knowledge gap\, I will investi
 gate PFAS release following the January 2025 Eaton Fire in Los Angeles\, C
 alifornia. We collected soil\, debris\, and point sources from residential
  properties with varying levels of fire damage. PFAS extraction from WUI f
 ires-impacted soils and debris is complicated by the high concentration of
  dissolved organic matter and the co-occurrence of a wide range of PFAS fu
 nctional classes. To address these challenges\, I will discuss an optimize
 d extraction protocol that improves recovery across diverse PFAS compounds
 \, followed by quantification using LC-MS/MS. Findings from this study wil
 l provide insights into how PFAS derived from WUI fires affect soil qualit
 y\, contribute to contaminant persistence\, and shape post-fire management
  strategies\, addressing a critical knowledge gap for contaminants of emer
 ging concern in WUI fires-impacted urban environments. 4:00 pm
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