<?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%">Tan, Z. F.</style></author><author><style face="normal" font="default" size="100%">Hofzumahaus, A.</style></author><author><style face="normal" font="default" size="100%">Lu, K. D.</style></author><author><style face="normal" font="default" size="100%">Brown, S. S.</style></author><author><style face="normal" font="default" size="100%">Holland, F.</style></author><author><style face="normal" font="default" size="100%">Huey, L. G.</style></author><author><style face="normal" font="default" size="100%">Kiendler-Scharr, A.</style></author><author><style face="normal" font="default" size="100%">X. Li</style></author><author><style face="normal" font="default" size="100%">Liu, X. X.</style></author><author><style face="normal" font="default" size="100%">Ma, N.</style></author><author><style face="normal" font="default" size="100%">Min, K. E.</style></author><author><style face="normal" font="default" size="100%">Rohrer, F.</style></author><author><style face="normal" font="default" size="100%">Shao, M.</style></author><author><style face="normal" font="default" size="100%">Wahner, A.</style></author><author><style face="normal" font="default" size="100%">Wang, Y. H.</style></author><author><style face="normal" font="default" size="100%">Wiedensohler, A.</style></author><author><style face="normal" font="default" size="100%">Y.S. Wu</style></author><author><style face="normal" font="default" size="100%">ZJ Wu</style></author><author><style face="normal" font="default" size="100%">L.M. Zeng</style></author><author><style face="normal" font="default" size="100%">Zhang, Y. H.</style></author><author><style face="normal" font="default" size="100%">Fuchs, H.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">No Evidence for a Significant Impact of Heterogeneous Chemistry on Radical Concentrations in the North China Plain in Summer 2014</style></title><secondary-title><style face="normal" font="default" size="100%">Environmental Science &amp;amp; Technology</style></secondary-title><alt-title><style face="normal" font="default" size="100%">Environ Sci Technol</style></alt-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">atmosphere</style></keyword><keyword><style  face="normal" font="default" size="100%">ho2 radicals</style></keyword><keyword><style  face="normal" font="default" size="100%">nitryl chloride</style></keyword><keyword><style  face="normal" font="default" size="100%">oh</style></keyword><keyword><style  face="normal" font="default" size="100%">oxidation</style></keyword><keyword><style  face="normal" font="default" size="100%">pearl river delta</style></keyword><keyword><style  face="normal" font="default" size="100%">pollution</style></keyword><keyword><style  face="normal" font="default" size="100%">rural site wangdu</style></keyword><keyword><style  face="normal" font="default" size="100%">surface ozone concentrations</style></keyword><keyword><style  face="normal" font="default" size="100%">uptake coefficients</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2020</style></year><pub-dates><date><style  face="normal" font="default" size="100%">May 19</style></date></pub-dates></dates><number><style face="normal" font="default" size="100%">10</style></number><volume><style face="normal" font="default" size="100%">54</style></volume><pages><style face="normal" font="default" size="100%">5973-5979</style></pages><isbn><style face="normal" font="default" size="100%">0013-936x</style></isbn><language><style face="normal" font="default" size="100%">English</style></language><abstract><style face="normal" font="default" size="100%">The oxidation of nitric oxide to nitrogen dioxide by hydroperoxy (HO2) and organic peroxy radicals (RO2) is responsible for the chemical net ozone production in the troposphere and for the regeneration of hydroxyl radicals, the most important oxidant in the atmosphere. In Summer 2014, a field campaign was conducted in the North China Plain, where increasingly severe ozone pollution has been experienced in the last years. Chemical conditions in the campaign were representative for this area. Radical and trace gas concentrations were measured, allowing for calculating the turnover rates of gas-phase radical reactions. Therefor; the importance of heterogeneous HO(2 )uptake on aerosol could be experimentally determined. HO2 uptake could have suppressed ozone formation at that time because of the competition with gas-phase reactions that produce ozone. The successful reduction of the aerosol load in the North China Plain in the last years could have led to a significant decrease of HO2 loss on particles, so that ozone-forming reactions could have gained importance in the last years. However, the analysis of the measured radical budget in this campaign shows that HO2 aerosol uptake did not impact radical chemistry for chemical conditions in 2014. Therefore, reduced HO2 uptake on aerosol since then is likely not the reason for the increasing number of ozone pollution events in the North China Plain, contradicting conclusions made from model calculations reported in the literature.</style></abstract><accession-num><style face="normal" font="default" size="100%">WOS:000537151000008</style></accession-num><notes><style face="normal" font="default" size="100%">&lt;p&gt;Lt6agTimes Cited:0Cited References Count:39&lt;/p&gt;</style></notes><auth-address><style face="normal" font="default" size="100%">Forschungszentrum Julich, Inst Energy &amp;amp;amp;amp; Climate Res, IEK 8 Troposphere, D-52428 Julich, GermanyInt Joint Lab Reg Pollut Control, D-52428 Julich, GermanyPeking Univ, State Key Joint Lab Environm Simulat &amp;amp;amp;amp; Pollut Con, Coll Environm Sci &amp;amp;amp;amp; Engn, Beijing 100871, Peoples R ChinaNOAA, Div Chem Sci, Earth Syst Res Lab, Boulder, CO 80309 USAUniv Colorado, Dept Chem, Boulder, CO 80309 USAGeorgia Inst Technol, Sch Earth &amp;amp;amp;amp; Atmospher Sci, Atlanta, GA 30332 USALeibniz Inst Tropospher Res, D-04318 Leipzig, GermanyUniv Colorado, Cooperat Inst Res Environm Sci, Boulder, CO 80309 USAPeking Univ, Beijing Innovat Ctr Engn Sci &amp;amp;amp;amp; Adv Technol, Beijing 100871, Peoples R ChinaChinese Acad Sci, CAS Ctr Excellence Reg Atmospher Environm, Xiamen 361000, Peoples R China</style></auth-address></record></records></xml>