<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Xu, W.</style></author><author><style face="normal" font="default" size="100%">Guo, S.</style></author><author><style face="normal" font="default" size="100%">Gomez-Hernandez, M.</style></author><author><style face="normal" font="default" size="100%">Zamora, M. L.</style></author><author><style face="normal" font="default" size="100%">Secrest, J.</style></author><author><style face="normal" font="default" size="100%">Marrero-Ortiz, W.</style></author><author><style face="normal" font="default" size="100%">Zhang, A. L.</style></author><author><style face="normal" font="default" size="100%">Collins, D. R.</style></author><author><style face="normal" font="default" size="100%">Zhang, R. Y.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Cloud forming potential of oligomers relevant to secondary organic aerosols</style></title><secondary-title><style face="normal" font="default" size="100%">Geophysical Research LettersGeophysical Research Letters</style></secondary-title><alt-title><style face="normal" font="default" size="100%">Geophys Res Lett</style></alt-title><short-title><style face="normal" font="default" size="100%">Geophys. Res. Lett.</style></short-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">absorption-model</style></keyword><keyword><style  face="normal" font="default" size="100%">activation</style></keyword><keyword><style  face="normal" font="default" size="100%">chemistry</style></keyword><keyword><style  face="normal" font="default" size="100%">gap</style></keyword><keyword><style  face="normal" font="default" size="100%">heterogeneous reactions</style></keyword><keyword><style  face="normal" font="default" size="100%">hygroscopic growth</style></keyword><keyword><style  face="normal" font="default" size="100%">mobility relationship</style></keyword><keyword><style  face="normal" font="default" size="100%">polar stratospheric clouds</style></keyword><keyword><style  face="normal" font="default" size="100%">soot</style></keyword><keyword><style  face="normal" font="default" size="100%">sulfuric-acid</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2014</style></year><pub-dates><date><style  face="normal" font="default" size="100%">Sep 28</style></date></pub-dates></dates><number><style face="normal" font="default" size="100%">18</style></number><volume><style face="normal" font="default" size="100%">41</style></volume><pages><style face="normal" font="default" size="100%">6538-6545</style></pages><isbn><style face="normal" font="default" size="100%">0094-8276</style></isbn><language><style face="normal" font="default" size="100%">English</style></language><abstract><style face="normal" font="default" size="100%">The hygroscopic growth factor (HGF) and cloud condensation nuclei (CCN) activity are measured for surrogates that mimic atmospherically relevant oligomers, including glyoxal trimer dihydrate, methyl glyoxal trimer dihydrate, sucrose, methyl glyoxal mixtures with sulfuric acid and glycolic acid, and 2,4-hexandienal mixtures with sulfuric acid and glycolic acid. For the single-component aerosols, the measured HGF ranges from 1.3 to 1.4 at a relative humidity of 90%, and the hygroscopicity parameter (kappa) is in the range of 0.06 to 0.19 on the basis of the measured CCN activity and 0.13 to 0.22 on the basis of the measured HGF, compared to the calculated values of 0.08 to 0.16. Large differences exist in the. values derived using the measured HGF and CCN data for the multi-component aerosols. Our results reveal that, in contrast to the oxidation process, oligomerization decreases particle hygroscopicity and CCN activity and provides guidance for analyzing the organic species in ambient aerosols.</style></abstract><accession-num><style face="normal" font="default" size="100%">WOS:000344913700030</style></accession-num><notes><style face="normal" font="default" size="100%">At4moTimes Cited:7Cited References Count:53</style></notes><auth-address><style face="normal" font="default" size="100%">Texas A&amp;M Univ, Dept Chem, College Stn, TX 77843 USATexas A&amp;M Univ, Dept Atmospher Sci, College Stn, TX USA</style></auth-address></record></records></xml>