Jump to main content
US EPA
United States Environmental Protection Agency
Search
Search
Main menu
Environmental Topics
Laws & Regulations
About EPA
Health & Environmental Research Online (HERO)
Contact Us
Print
Feedback
Export to File
Search:
This record has one attached file:
Add More Files
Attach File(s):
Display Name for File*:
Save
Citation
Tags
HERO ID
5814325
Reference Type
Journal Article
Title
Aging effects on biomass burning aerosol mass and composition: A critical review of field and laboratory studies
Author(s)
Hodshire, AL; Akherati, A; Alvarado, MJ; Brown-Steiner, B; Jathar, SH; Jimenez, JL; Kreidenweis, SM; Lonsdale, CR; Onasch, TB; Ortega, AM; Pierce, JR
Year
2019
Is Peer Reviewed?
1
Journal
Environmental Science & Technology
ISSN:
0013-936X
EISSN:
1520-5851
Volume
53
Issue
17
Page Numbers
10007-10022
Language
English
PMID
31365241
DOI
10.1021/acs.est.9b02588
Web of Science Id
WOS:000484644500004
Abstract
Biomass burning is a major source of atmospheric particulate matter (PM) with impacts on health, climate, and air quality. The particles and vapors within biomass burning plumes undergo chemical and physical aging as they are transported downwind. Field measurements of the evolution of PM with plume age range from net decreases to net increases, with most showing little to no change. In contrast, laboratory studies tend to show significant mass increases on average. On the other hand, similar effects of aging on the average PM composition (e.g., oxygen-to-carbon ratio) are reported for lab and field studies. Currently, there is no consensus on the mechanisms that lead to these observed similarities and differences. This review summarizes available observations of aging-related biomass burning aerosol mass concentrations and composition markers, and discusses four broad hypotheses to explain variability within and between field and laboratory campaigns: (1) variability in emissions and chemistry, (2) differences in dilution/entrainment, (3) losses in chambers and lines, and (4) differences in the timing of the initial measurement, the baseline from which changes are estimated. We conclude with a concise set of research needs for advancing our understanding of the aging of biomass burning aerosol.
Tags
•
LitSearch-NOx (2024)
TIAB Screening
Atmospheric
Round 1
Exclude
Home
Learn about HERO
Using HERO
Search HERO
Projects in HERO
Risk Assessment
Transparency & Integrity