@article{
 title = {Characterization of Organic Aerosol Particles Observed during Asian Dust Events in Spring 2010},
 type = {article},
 year = {2013},
 identifiers = {[object Object]},
 pages = {1019-1033},
 volume = {13},
 month = {6},
 id = {79155244-d3e9-3122-9c8b-66e41c0cc9c1},
 created = {2015-02-12T14:34:41.000Z},
 file_attached = {false},
 profile_id = {81af7548-db00-3f00-bfa0-1774347c59e1},
 group_id = {63e349d6-2c70-3938-9e67-2f6483f6cbab},
 last_modified = {2015-02-12T14:34:41.000Z},
 read = {false},
 starred = {false},
 authored = {false},
 confirmed = {true},
 hidden = {false},
 citation_key = {ISI:000317331500019},
 source_type = {article},
 abstract = {Between 20 March and 4 April, 2010, 24-hr PM2.5 measurements were
carried out at an urban site in Gwangju, Korea, to examine the
variations in the composition of its chemical constituents among dust
storm ( DS) events, haze pollution, and typical sampling (TS)
conditions. A very heavy Asian DS (DS1) and a minor DS (DS2) occurred at
the site on 20 and 23 March, 2010, respectively.
The concentrations of organic matter, NO3-, SO42-, and the predicted
crustal material made a contribution to the observed PM2.5 of 12.9, 9.7,
12.9, and 36.9% for DS1, 23.8, 17.1, 9.9, and 29.7% for DS2, and 24.9,
20.2, 10.3, and 17.6% for the haze event, respectively. Over the study
period, the water-soluble organic carbon (WSOC)/OC and hydrophilic WSOC
(WSOCHPI)/WSOC ratios ranged from 0.35 to 0.54 and from 0.15 to 0.61,
respectively, with the highest ratios occurring during DS1. The
concentration of WSOCHPI during DS1 was about 2-3 times higher than that
during the TS period. The strong correlation between WSOC/OC and
WSOCHPI/WSOC (R-2 = 0.84) clearly indicates that the increase in the
WSOC/OC ratio can be attributed to the increased concentration of
WSOCHPI, suggesting that the aerosol sample collected during DS1 was
more aged or atmospherically processed than the samples collected during
the TS. In addition to the association between the WSOC/OC and
WSOCHPI/WSOC ratios, strong correlations between the oxalate and SO42-
oncentrations (R2 = 0.74), and between the WSOCHPI and SO4
2-concentrations (R-2 = 0.69), suggest that the WSOCHPI observed at the
site was produced by atmospheric transformation processes similar to
those seen with SO42- and oxalate. In contrast, the hydrophobic WSOC
(WSOCHPO)concentration dominated in the other sampling periods, except
for DS1, and accounted for 71.1-84.7% of WSOC. Based on the results of
previous studies, the higher WSOCHPO/WSOC ratio during the TS indicates
that the primary combustion emissions were important sources of the
WSOCHPO fraction at this site.},
 bibtype = {article},
 author = {Park, Seung Shik and Cho, Sung Yong},
 journal = {AEROSOL AND AIR QUALITY RESEARCH},
 number = {3}
}

{"_id":"CsA7hdzmo5hngyAf2","bibbaseid":"park-cho-characterizationoforganicaerosolparticlesobservedduringasiandusteventsinspring2010-2013","downloads":0,"creationDate":"2017-01-12T21:32:07.651Z","title":"Characterization of Organic Aerosol Particles Observed during Asian Dust Events in Spring 2010","author_short":["Park, S., S.","Cho, S., Y."],"year":2013,"bibtype":"article","biburl":null,"bibdata":{"title":"Characterization of Organic Aerosol Particles Observed during Asian Dust Events in Spring 2010","type":"article","year":"2013","identifiers":"[object Object]","pages":"1019-1033","volume":"13","month":"6","id":"79155244-d3e9-3122-9c8b-66e41c0cc9c1","created":"2015-02-12T14:34:41.000Z","file_attached":false,"profile_id":"81af7548-db00-3f00-bfa0-1774347c59e1","group_id":"63e349d6-2c70-3938-9e67-2f6483f6cbab","last_modified":"2015-02-12T14:34:41.000Z","read":false,"starred":false,"authored":false,"confirmed":"true","hidden":false,"citation_key":"ISI:000317331500019","source_type":"article","abstract":"Between 20 March and 4 April, 2010, 24-hr PM2.5 measurements were\ncarried out at an urban site in Gwangju, Korea, to examine the\nvariations in the composition of its chemical constituents among dust\nstorm ( DS) events, haze pollution, and typical sampling (TS)\nconditions. A very heavy Asian DS (DS1) and a minor DS (DS2) occurred at\nthe site on 20 and 23 March, 2010, respectively.\nThe concentrations of organic matter, NO3-, SO42-, and the predicted\ncrustal material made a contribution to the observed PM2.5 of 12.9, 9.7,\n12.9, and 36.9% for DS1, 23.8, 17.1, 9.9, and 29.7% for DS2, and 24.9,\n20.2, 10.3, and 17.6% for the haze event, respectively. Over the study\nperiod, the water-soluble organic carbon (WSOC)/OC and hydrophilic WSOC\n(WSOCHPI)/WSOC ratios ranged from 0.35 to 0.54 and from 0.15 to 0.61,\nrespectively, with the highest ratios occurring during DS1. The\nconcentration of WSOCHPI during DS1 was about 2-3 times higher than that\nduring the TS period. The strong correlation between WSOC/OC and\nWSOCHPI/WSOC (R-2 = 0.84) clearly indicates that the increase in the\nWSOC/OC ratio can be attributed to the increased concentration of\nWSOCHPI, suggesting that the aerosol sample collected during DS1 was\nmore aged or atmospherically processed than the samples collected during\nthe TS. In addition to the association between the WSOC/OC and\nWSOCHPI/WSOC ratios, strong correlations between the oxalate and SO42-\noncentrations (R2 = 0.74), and between the WSOCHPI and SO4\n2-concentrations (R-2 = 0.69), suggest that the WSOCHPI observed at the\nsite was produced by atmospheric transformation processes similar to\nthose seen with SO42- and oxalate. In contrast, the hydrophobic WSOC\n(WSOCHPO)concentration dominated in the other sampling periods, except\nfor DS1, and accounted for 71.1-84.7% of WSOC. Based on the results of\nprevious studies, the higher WSOCHPO/WSOC ratio during the TS indicates\nthat the primary combustion emissions were important sources of the\nWSOCHPO fraction at this site.","bibtype":"article","author":"Park, Seung Shik and Cho, Sung Yong","journal":"AEROSOL AND AIR QUALITY RESEARCH","number":"3","bibtex":"@article{\n title = {Characterization of Organic Aerosol Particles Observed during Asian Dust Events in Spring 2010},\n type = {article},\n year = {2013},\n identifiers = {[object Object]},\n pages = {1019-1033},\n volume = {13},\n month = {6},\n id = {79155244-d3e9-3122-9c8b-66e41c0cc9c1},\n created = {2015-02-12T14:34:41.000Z},\n file_attached = {false},\n profile_id = {81af7548-db00-3f00-bfa0-1774347c59e1},\n group_id = {63e349d6-2c70-3938-9e67-2f6483f6cbab},\n last_modified = {2015-02-12T14:34:41.000Z},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n citation_key = {ISI:000317331500019},\n source_type = {article},\n abstract = {Between 20 March and 4 April, 2010, 24-hr PM2.5 measurements were\ncarried out at an urban site in Gwangju, Korea, to examine the\nvariations in the composition of its chemical constituents among dust\nstorm ( DS) events, haze pollution, and typical sampling (TS)\nconditions. A very heavy Asian DS (DS1) and a minor DS (DS2) occurred at\nthe site on 20 and 23 March, 2010, respectively.\nThe concentrations of organic matter, NO3-, SO42-, and the predicted\ncrustal material made a contribution to the observed PM2.5 of 12.9, 9.7,\n12.9, and 36.9% for DS1, 23.8, 17.1, 9.9, and 29.7% for DS2, and 24.9,\n20.2, 10.3, and 17.6% for the haze event, respectively. Over the study\nperiod, the water-soluble organic carbon (WSOC)/OC and hydrophilic WSOC\n(WSOCHPI)/WSOC ratios ranged from 0.35 to 0.54 and from 0.15 to 0.61,\nrespectively, with the highest ratios occurring during DS1. The\nconcentration of WSOCHPI during DS1 was about 2-3 times higher than that\nduring the TS period. The strong correlation between WSOC/OC and\nWSOCHPI/WSOC (R-2 = 0.84) clearly indicates that the increase in the\nWSOC/OC ratio can be attributed to the increased concentration of\nWSOCHPI, suggesting that the aerosol sample collected during DS1 was\nmore aged or atmospherically processed than the samples collected during\nthe TS. In addition to the association between the WSOC/OC and\nWSOCHPI/WSOC ratios, strong correlations between the oxalate and SO42-\noncentrations (R2 = 0.74), and between the WSOCHPI and SO4\n2-concentrations (R-2 = 0.69), suggest that the WSOCHPI observed at the\nsite was produced by atmospheric transformation processes similar to\nthose seen with SO42- and oxalate. In contrast, the hydrophobic WSOC\n(WSOCHPO)concentration dominated in the other sampling periods, except\nfor DS1, and accounted for 71.1-84.7% of WSOC. Based on the results of\nprevious studies, the higher WSOCHPO/WSOC ratio during the TS indicates\nthat the primary combustion emissions were important sources of the\nWSOCHPO fraction at this site.},\n bibtype = {article},\n author = {Park, Seung Shik and Cho, Sung Yong},\n journal = {AEROSOL AND AIR QUALITY RESEARCH},\n number = {3}\n}","author_short":["Park, S., S.","Cho, S., Y."],"bibbaseid":"park-cho-characterizationoforganicaerosolparticlesobservedduringasiandusteventsinspring2010-2013","role":"author","urls":{},"downloads":0},"search_terms":["characterization","organic","aerosol","particles","observed","during","asian","dust","events","spring","2010","park","cho"],"keywords":[],"authorIDs":[]}