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Keyword: emissions

Variability of fire behavior, fire effects, and emissions in Scotch pine forests of central Siberia

Publications Posted on: February 03, 2016
As part of the Russian FIRE BEAR (Fire Effects in the Boreal Eurasia Region) Project, replicated 4-ha experimental fires were conducted on a dry Scotch pine (Pinus sylvestris)/lichen (Cladonia sp.)/feathermoss (Pleurozeum schreberi) forest site in central Siberia.

Improved air-quality models help land managers and regulators

Science Spotlights Posted on: September 30, 2015
Wildland fires are a significant source of air pollutants. Researchers found that wildfires in the Interior Mountain West burn with a much lower combustion efficiency than prescribed fires. This finding means that for a given mass of vegetation burned, wildfires emit more fine particulate matter (PM2.5) and more non-methane organic compounds (NMOC) that lead to ozone (O3) formation.

Wildland fire emission factors database

Datasets Posted on: August 27, 2015
Smoke emission factors (EFs) have been developed for a variety of wildland fuels beginning in the late 1960s. Many of these EFs have been presented in a variety of outlets and there is no centralized repository containing many of the EFs developed in the 1970s and 1980s.

Final report for SERDP project RC-1648: new tools for estimating and managing local/regional air quality impacts of prescribed burns. University of California - Riverside

Publications Posted on: July 27, 2015
Gaseous and particulate emissions were measured for a variety of chaparral and Madrean oak woodland fuel types in a series of laboratory and field experiments in California and Arizona. Emissions were measured using state of the art ground-based and aircraft-based sampling systems. Emission factors were determined for many new chemical species for the fuels.

Climate change impacts on fire regimes and air quality in northern Eurasia

Projects Posted on: March 27, 2015
Global surface temperatures have increased about 0.89°C during the period from 1901 to 2012. Northern Eurasia has experienced the greatest temperature increase to date and is projected to continue experiencing the largest temperature increase globally.

Wildland fire emissions, carbon, and climate: Science overview and knowledge needs

Publications Posted on: April 16, 2014
Wildland fires have influenced the global carbon cycle for 420 million years of Earth history, interacting with climate to define vegetation characteristics and distributions, trigger abrupt ecosystem shifts, and move carbon among terrestrial and atmospheric pools.

Wildland fire emissions, carbon, and climate: Seeing the forest and the trees - A cross-scale assessment of wildfire and carbon dynamics in fire-prone, forested ecosystems

Publications Posted on: April 16, 2014
Wildfires are an important component of the terrestrial carbon cycle and one of the main pathways for movement of carbon from the land surface to the atmosphere. Fires have received much attention in recent years as potential catalysts for shifting landscapes from carbon sinks to carbon sources.

Combustion efficiency and emission factors for wildfire-season fires in mixed conifer forests of the northern Rocky Mountains, US

Publications Posted on: September 26, 2013
In the US, wildfires and prescribed burning present significant challenges to air regulatory agencies attempting to achieve and maintain compliance with air quality regulations. Fire emission factors (EF) are essential input for the emission models used to develop wildland fire emission inventories.

Projections of emissions from burning of biomass foruse in studies of global climate and atmospheric chemistry

Publications Posted on: April 03, 2013
Emissions of trace gases and particulate matter from burning of biomass are generally factored into global climate models. Models for improving the estimates of the global annual release of emissions from biomass fires are presented. Estimates of total biomass consumed on a global basis range from 2 to 10 Pg (1 petagram = 1015 g) per year.

Coupling field and laboratory measurements to estimate the emission factors of identified and unidentified trace gases for prescribed fires [Discussions]

Publications Posted on: August 22, 2012
An extensive program of experiments focused on biomass burning emissions began with a laboratory phase in which vegetative fuels commonly consumed in prescribed fires were collected in the southeastern and southwestern US and burned in a series 5 of 71 fires at the US Forest Service Fire Sciences Laboratory in Missoula, Montana.