NSF award 2445545 · Portland State University

Towards fundamental understanding of the accumulation, chemistry, and human exposure to indoor surface-associated wildfire smoke constituents

Final report due

29 December 2028

in 803 days · The award ends on 31 August 2028.

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Decide about an extension3 May 2028in 563 days
award ending 2028-08-31 · Research.gov
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Extension request17 Jul 2028in 638 days
award ending 2028-08-31 · Research.gov
PAPPG 24-1: “at least 45 days prior to the end date”
No-cost extension notice21 Aug 2028in 673 days
award ending 2028-08-31 · Research.gov
PAPPG 24-1: “at least ten calendar days prior to the end date”
Final report due29 Dec 2028in 803 days
award ending 2028-08-31 · Research.gov
PAPPG 24-1: “no later than 120-days following the end date of the award”
Project outcomes report due29 Dec 2028in 803 days
award ending 2028-08-31 · Research.gov
PAPPG 24-1: “no later than 120 days following the end date”
Award is closed out29 Dec 2028in 803 days
award ending 2028-08-31 · Research.gov
PAPPG 24-1: “financially closed out 120 days after their expiration date”

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NSF lists this award's end date as 31 August 2028.
NSF rules say the final report is due no later than 120 days after that.
So the final report is due by 29 December 2028.

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Award card

Award number: 2445545
Period of support: 15 Sep 2025 – 31 Aug 2028
Amount: $418,746
Awardee: Portland State University, Portland, OR
Program: EnvE-Environmental Engineering
Directorate: ENG

Abstract

When wildfire smoke enters buildings, particles and chemicals can stick to indoor surfaces like floors and clothing, remaining indoors even after the smoke outside clears. The health risks from these contaminated surfaces are largely unknown, presenting a potential hidden danger in homes and workplaces. This project will study how smoke pollutants accumulate on common indoor materials, how these chemicals might…

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