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This article was developed under Assistance Agreement No. R840238 awarded by the U.S. Environmental Protection Agency to Elliott Gall, Portland State University. It has not been formally reviewed by EPA. The views expressed in this document are solely those of Aurélie Laguerre and Elliott Gall and do not necessarily reflect those of the Agency. EPA does not endorse any products or commercial services mentioned in this publication. This work was partially supported by a seed grant from the Sloan Surface Consortium for Chemistry of Indoor Environments (SURF-CIE).
Published In
ACS omega
Document Type
Article
Publication Date
6-2023
Subjects
Amorphous materials, Aromatic compounds, Computer simulations, Extraction, Materials
Abstract
Wildfire smoke penetrates indoors, and polycyclic aromatic hydrocarbons (PAHs) in smoke may accumulate on indoor materials. We developed two approaches for measuring PAHs on common indoor materials: (1) solvent-soaked wiping of solid materials (glass and drywall) and (2) direct extraction of porous/fleecy materials (mechanical air filter media and cotton sheets). Samples are extracted by sonication in dichloromethane and analyzed with gas chromatography–mass spectrometry. Extraction recoveries range from 50–83% for surrogate standards and for PAHs recovered from direct application to isopropanol-soaked wipes, in line with prior studies. We evaluate our methods with a total recovery metric, defined as the sampling and extraction recovery of PAHs from a test material spiked with known PAH mass. Total recovery is higher for “heavy” PAHs (HPAHs, 4 or more aromatic rings) than for “light” PAHs (LPAHs, 2–3 aromatic rings). For glass, the total recovery range is 44–77% for HPAHs and 0–30% for LPAHs. Total recoveries from painted drywall are
Rights
Copyright © 2023 The Authors. Published by American Chemical Society. This publication is licensed under CC-BY-NC-ND 4.0.
Locate the Document
DOI
10.1021/acsomega.3c01184
Persistent Identifier
https://archives.pdx.edu/ds/psu/40403
Citation Details
Laguerre, A., & Gall, E. T. (2023). Measurement of Polycyclic Aromatic Hydrocarbons (PAHs) on Indoor Materials: Method Development. ACS omega.
Raw Data - revised ReadMe 1/8/2024
Description
About the supplemental zip file -- raw data: the structure of raw data folders and files associated with the manuscript are explained below.
Folders contain raw data for manuscript "Measurement of Polycyclic Aromatic Hydrocarbons (PAHs) on Indoor Materials: Method Development"
By Aurelie Laguerre and Elliott Gall
Published in ACS Omega, May 26, 2023
https://pubs.acs.org/doi/full/10.1021/acsomega.3c01184
https://doi.org/10.1021/acsomega.3c01184
- folder PAH_01072022: rep 1 of wipe, glass and drywall (SIM mode)
- folder PAH_01202022: rep 2 of glass and rep 1 and 2 filters (25 and 100 cm^2), SIM and SCAN mode
- folder PAH_01212022: rep 2 of wipe and drywall, SIM and SCAN mode
- folder PAH_02092022: rep 3 wipe, glass, drywall, filters (25 and 100 cm^2) SIM mode
- folder PAH_03072022: Drywall rep that was missed previously, week 0 of stability tests, MDL test
- folder PAH_03142022: stability tests week 1
- folder PAH_03212022: stability tests week 2
- folder PAH_03282022: stability tests week 3
- folder PAH_04042022: stability tests week 4
Folders named above include raw data from replicate indicated above. Within each file the there is a spreadsheet (*.xlsx file titled "Sequence_MMDDYYYY) sample name, method, and filename are provided for blanks, standards, samples tested (i.e. wipes, glass, drywall, etc.) and other QA/QC runs.
Questions reach out to:
Elliott Gall
Associate Professor
Portland State University
gall@pdx.edu
503-725-2878