AAAR 32nd Annual Conference
September 30 - October 4, 2013
Oregon Convention Center
Portland, Oregon, USA
Abstract View
Brick Kiln Emissions Quantified with the Aerodyne Mobile Laboratory during the Short Lived Climate Forcing (SLCF) 2013 Campaign in Guanajuato Mexico
EDWARD FORTNER, Berk Knighton, Scott Herndon, Joseph Roscioli, Miguel Zavala, Timothy Onasch, John Jayne, Douglas Worsnop, Charles Kolb, Luisa Molina, Aerodyne Research, Inc.
Abstract Number: 464 Working Group: Carbonaceous Aerosols in the Atmosphere
Abstract Brick kiln emissions are suspected to be a major source of black carbon in developing countries and black carbons role as a short lived climate forcer is under investigation. The SLCF brick kiln study was conducted from 12-17 March 2013 in the Guanajuato state of Mexico and examines these black carbon emissions. Three different types of brick kilns were measured (MK-2, traditional campaign kiln, and traditional fixed kiln) giving insight to the effects of different kiln designs on particle and gas phase emissions. The emission of these kilns was measured both during the fire stage and the subsequent smoldering stage.
The Aerodyne Mobile Laboratory conducted these emission measurements utilizing tracer release technology placed adjacent to the brick kiln. Utilizing this method the evolution of the brick kiln plume can be examined as it transits downwind from the source. Particulate measurements conducted by the mobile laboratory included the multi angle absorption photometer (MAAP) to measure black carbon mass, cavity attenuated phase shift (CAPSext) monitor to measure extinction and soot particle aerosol mass spectrometer (SP-AMS) measurements of black carbon. The SP-AMS instrument combines the ability to measure black carbon with the ability to determine the chemical composition of the PM associated with black carbon particles. Gas phase measurements conducted included CO, CO$_2, NO$_X, SO$_2, CH$_4, C$_2H$_6 and a variety of VOCs (Acetonitrile, benzene etc.) measured with a PTR-MS instrument. All of these measurements will be examined to construct emission ratios evaluating how these vary with different kiln types and different fire conditions. The evolution of particulate matter and gas phase species as they transit away from the source will also be examined.