Dissertation/Thesis Abstract

Characterizing Emissions from Prescribed Fires and Assessing Impacts to Air Quality in the Lake Tahoe Basin Using Dispersion Modeling
by Malamakal, Tom M., M.S., University of Nevada, Reno, 2013, 93; 1540197
Abstract (Summary)

A PM2.5 monitoring network was established around Lake Tahoe during fall 2011, which, in conjunction with measurements at prescribed burns and smoke dispersion modeling based on the Fire Emission Production Simulator and the Hybrid Single Particle Lagrangian Integrated Trajectory (FEPS-HYSPLIT) Model, served to evaluate the prescribed burning impacts on air quality. Emissions from pile and understory prescribed burns were characterized using a mobile air monitoring system. In field PM2.5 emission factors showed ranges consistent with laboratory combustion of wet and dry fuels. Measurements in the smoke plume showed progression from flaming to smoldering phase consistent with FEPS and PM2.5 emission factors generally increased with decreasing combustion efficiency. Model predicted smoke contributions are consistent with elevated ambient PM2.5 concentrations in three case studies, and high meteorological model resolution (2km × 2 km) seems to produce accurate smoke arriving times. In other cases, the model performance is difficult to evaluate due to low predicted smoke contributions relative to the typical ambient PM2.5 level. Synergistic assessment of modeling and measurement can be used to determine basin air quality impact. The findings from this study will help land management agencies better understand the implications of managing fire at the wildland-urban interface.

Indexing (document details)
Advisor: Chen, Lung-Wen A.
Commitee: Green, Mark, Verburg, Paul
School: University of Nevada, Reno
Department: Atmospheric Sciences
School Location: United States -- Nevada
Source: MAI 52/01M(E), Masters Abstracts International
Source Type: DISSERTATION
Subjects: Atmospheric Chemistry, Atmospheric sciences, Environmental science
Keywords: Biomass burning, Chemical composition, Dispersion, Prescribed fire, Smoke forecast
Publication Number: 1540197
ISBN: 978-1-303-17236-6
Copyright © 2019 ProQuest LLC. All rights reserved. Terms and Conditions Privacy Policy Cookie Policy
ProQuest