<?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%">H.H. Wu</style></author><author><style face="normal" font="default" size="100%">Y. Wang</style></author><author><style face="normal" font="default" size="100%">H. Li</style></author><author><style face="normal" font="default" size="100%">L.B. Huang</style></author><author><style face="normal" font="default" size="100%">D. Huang</style></author><author><style face="normal" font="default" size="100%">H.Q. Shen</style></author><author><style face="normal" font="default" size="100%">Y.N. Xing</style></author><author><style face="normal" font="default" size="100%">Chen, Z. M.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">The OH-initiated oxidation of atmospheric peroxyacetic acid: Experimental and model studies</style></title><secondary-title><style face="normal" font="default" size="100%">Atmospheric Environment</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">2017</style></year></dates><volume><style face="normal" font="default" size="100%">164</style></volume><pages><style face="normal" font="default" size="100%">61-70</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p&gt;&lt;span style=&quot;color: rgb(0, 0, 0);&quot;&gt;Peroxyacetic acid (PAA, CH&lt;sub&gt;&lt;span style=&quot;font-size: small;&quot;&gt;3&lt;/span&gt;&lt;/sub&gt;&lt;/span&gt;&lt;span style=&quot;color: rgb(0, 0, 0);&quot;&gt;C(O)OOH) plays an important role in atmospheric chemistry, serving as reactive oxidant and affecting radical recycling. However, previous studies revealed an obvious gap between modelled and observed concentrations of atmospheric PAA, which may be partly ascribed to the uncertainty in the kinetics and mechanism of OH-oxidation. In this study, we measured the rate constant of OH radical reaction with PAA (&lt;/span&gt;&lt;span style=&quot;color: rgb(0, 0, 0);&quot;&gt;&lt;em&gt;k&lt;/em&gt;&lt;sub&gt;&lt;span style=&quot;font-size: small;&quot;&gt;PAA+OH&lt;/span&gt;&lt;/sub&gt;&lt;/span&gt;&lt;span style=&quot;color: rgb(0, 0, 0);&quot;&gt;) and investigated the products in order to develop a more robust atmospheric PAA chemistry. Using the relative rates technique and employing toluene and metaxylene as reference compounds, the &lt;/span&gt;&lt;span style=&quot;color: rgb(0, 0, 0);&quot;&gt;&lt;em&gt;k&lt;/em&gt;&lt;sub&gt;&lt;span style=&quot;font-size: small;&quot;&gt;PAA+OH&lt;/span&gt;&lt;/sub&gt;&lt;/span&gt;&lt;span style=&quot;color: rgb(0, 0, 0);&quot;&gt; was determined to be (9.4&lt;/span&gt;&lt;span style=&quot;color: rgb(0, 0, 0);&quot;&gt;-11.9)*&lt;/span&gt;&lt;span style=&quot;color: rgb(0, 0, 0);&quot;&gt;10&lt;sup&gt;&lt;span style=&quot;font-size: small;&quot;&gt;-12&lt;/span&gt;&lt;/sup&gt;&lt;/span&gt;&lt;span style=&quot;color: rgb(0, 0, 0);&quot;&gt; cm&lt;/span&gt;&lt;sup&gt;&lt;span style=&quot;color: rgb(0, 0, 0); font-size: small;&quot;&gt;3&lt;/span&gt;&lt;/sup&gt;&lt;span style=&quot;color: rgb(0, 0, 0);&quot;&gt; molecule&lt;/span&gt;&lt;sup&gt;&lt;span style=&quot;color: rgb(0, 0, 0); font-size: small;&quot;&gt;-1 &lt;/span&gt;&lt;/sup&gt;&lt;span style=&quot;color: rgb(0, 0, 0);&quot;&gt;s&lt;/span&gt;&lt;sup&gt;&lt;span style=&quot;color: rgb(0, 0, 0); font-size: small;&quot;&gt;-1&lt;/span&gt;&lt;/sup&gt;&lt;span style=&quot;color: rgb(0, 0, 0);&quot;&gt; at 298 K and 1 atm, which is about (2.5&lt;/span&gt;&lt;span style=&quot;color: rgb(0, 0, 0);&quot;&gt;-3.2) times larger than that parameter used in Master Chemical Mechanism v3.3.1 (MCM v3.3.1) (3.70*&lt;/span&gt;&lt;span style=&quot;color: rgb(0, 0, 0);&quot;&gt;10&lt;sup&gt;&lt;span style=&quot;font-size: small;&quot;&gt;-12&lt;/span&gt;&lt;/sup&gt;&lt;/span&gt;&lt;span style=&quot;color: rgb(0, 0, 0);&quot;&gt; cm&lt;/span&gt;&lt;sup&gt;&lt;span style=&quot;color: rgb(0, 0, 0); font-size: small;&quot;&gt;3&lt;/span&gt;&lt;/sup&gt;&lt;span style=&quot;color: rgb(0, 0, 0);&quot;&gt; molecule&lt;/span&gt;&lt;sup&gt;&lt;span style=&quot;color: rgb(0, 0, 0); font-size: small;&quot;&gt;-1&lt;/span&gt;&lt;/sup&gt;&lt;span style=&quot;color: rgb(0, 0, 0);&quot;&gt; s&lt;/span&gt;&lt;sup&gt;&lt;span style=&quot;color: rgb(0, 0, 0); font-size: small;&quot;&gt;-1&lt;/span&gt;&lt;/sup&gt;&lt;span style=&quot;color: rgb(0, 0, 0);&quot;&gt;). Incorporation of a box model and MCM v3.3.1 with revised PAA chemistry represented a better simulation of atmospheric PAA observed during Wangdu Campaign 2014, a rural site in North China Plain. It is found that OH-oxidation is an important sink of atmospheric PAA in this rural area, accounting for ~30% of the total loss. Moreover, the major terminal products of PAA&lt;/span&gt;&lt;span style=&quot;color: rgb(0, 0, 0);&quot;&gt;-OH reaction were identified as formaldehyde (HCHO) and formic acid (HC(O)OH). The modelled results show that both primary and secondary chemistry play an important role in the large HCHO and HC(O)OH formation under experimental conditions. There should exist the channel of methyl H-abstraction for PAA-OH reaction, which may also provide routes to HCHO and HC(O)OH formation.&lt;/span&gt;&lt;/p&gt;</style></abstract></record></records></xml>