TY - JOUR
T1 - Estimating contributions of prescribed rangeland burning in Kansas to ambient PM2.5 through source apportionment with the unmix receptor model
AU - Liu, Z.
AU - Liu, Y.
AU - Maghirang, R.
AU - Devlin, D.
AU - Blocksome, C.
PY - 2016/1/1
Y1 - 2016/1/1
N2 - The Unmix receptor model was applied to the 2002-2014 speciated PM2.5 data from the IMPROVE site at Tallgrass National Preserve near Strong City, Kansas, to investigate the contributions of prescribed rangeland burning on local air quality. This investigation found the following five source categories that contribute to annual local ambient PM2.5: nitrate/agricultural (22%), vegetative burning (5%), secondary organic aerosol (29%), sulfate/industrial (30%), and crustal/soil (14%). In the month of April, the contributions of vegetative burning and secondary organic aerosol increased to 11% and 49%, respectively, indicating the influence of the prescribed burning season. The contribution of smoke from prescribed burning was estimated to be 1.05 μg m-3 as primary aerosols and 4.03 μg m-3 as secondary aerosols, which in total accounted for 42% of the average PM2.5 concentration in April.
AB - The Unmix receptor model was applied to the 2002-2014 speciated PM2.5 data from the IMPROVE site at Tallgrass National Preserve near Strong City, Kansas, to investigate the contributions of prescribed rangeland burning on local air quality. This investigation found the following five source categories that contribute to annual local ambient PM2.5: nitrate/agricultural (22%), vegetative burning (5%), secondary organic aerosol (29%), sulfate/industrial (30%), and crustal/soil (14%). In the month of April, the contributions of vegetative burning and secondary organic aerosol increased to 11% and 49%, respectively, indicating the influence of the prescribed burning season. The contribution of smoke from prescribed burning was estimated to be 1.05 μg m-3 as primary aerosols and 4.03 μg m-3 as secondary aerosols, which in total accounted for 42% of the average PM2.5 concentration in April.
KW - IMPROVE
KW - Rangeland burning
KW - Secondary organic aerosols
KW - Smoke
KW - Source apportionment
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U2 - 10.13031/trans.59.11612
DO - 10.13031/trans.59.11612
M3 - Article
AN - SCOPUS:84998785512
VL - 59
SP - 1267
EP - 1275
JO - Transactions - American Society of Agricultural Engineers: General Edition
JF - Transactions - American Society of Agricultural Engineers: General Edition
SN - 2151-0032
IS - 5
ER -