Crustal fraction of cattle feedlot particulate matter emissions using neutron activation analysis: method development |
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| Authors: | J M Lange R E Lacey Jr" target="_blank">C B ParnellJr W D James |
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| Institution: | (1) Department of Biological and Agricultural Engineering, Texas A&M University, 2117 TAMU, College Station, TX 77843-2117, USA;(2) Center for Chemical Characterization and Analysis, Department of Chemistry, Texas A&M University, 3144 TAMU, College Station, TX 77843-3144, USA |
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| Abstract: | Neutron activation analysis (NAA), along with multivariate statistical methods, were employed as a proposed method to measure
concentrations of some 30 elements in filtered air particulates and to estimate the fraction of particulate matter originating
from crustal sources. The new method may provide a means for certain agricultural industries, in particular cattle feedlots,
to take advantage of the proposed crustal credit in emission regulations, if such a credit is implemented by the US Environment
Protection Agency (EPA). Chemical composition of particulate source materials as well as environmental air particulate samples
were determined and results compared using computer modelling techniques to determine contribution from each potential source. |
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| Keywords: | Neutron activation analysis Air particulates Cattle feedlots Crustal fraction Air pollution |
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