不同氧化剂条件下家具板材释放VOCs的SOA生成转化机理研究

项目名称： 不同氧化剂条件下家具板材释放VOCs的SOA生成转化机理研究

项目编号： No.41275135

项目类型： 面上项目

立项/批准年度： 2013

项目学科： 天文学、地球科学

项目作者： 耿春梅

作者单位： 中国环境科学研究院

项目金额： 86万元

中文摘要： 家具板材释放的污染物中部分VOCs具有较强活性，其反应后造成新的气相和颗粒相污染，对人体健康具有更大危害。本项目拟将室内空气污染的研究方法与光化学反应箱模拟研究方法相结合，针对家具板材释放VOCs所造成的二次污染，尤其是颗粒物污染进行深入研究。在气候箱内测定家具板材释放的VOCs物种，获得VOCs物种清单，并将气候箱内含VOCs气体引入光化学反应箱，在一定的氧化剂浓度及反应条件（温度、湿度和光照）下，测定各VOCs物种的转化速率，识别活性VOCs物种。本项目重点研究活性VOCs物种的SOA生成转化规律，通过改变反应条件来识别影响VOCs释放和SOA生成转化的重要因素。将实际大气引入光化学反应箱作为背景气体，研究在实际大气条件下家具板材释放VOCs对室内空气质量的影响，评估家具板材对居室内VOCs和颗粒物的贡献，弥补对家具板材释放污染物产生的SOA对室内空气质量影响研究不足的欠缺。

中文关键词： 家具板材；挥发性有机物；二次有机气溶胶；光催化氧化；TiO2/ACF

英文摘要： Some kinds of VOCs emitted from furniture plank are very active. The reaction of those compounds with oxidants in the indoor air results in the formation of new gaseous and particular pollutants leading to healthy damage. The method of indoor air polluiton study and of photochemical reaction study will be integrated to study the secondary pollution from VOCs emitted from furniture wood in this study, especially for secondary organic aerosol (SOA). VOCs emitted from furniture plank in climate chamber will be analyzed to obtain the pollutant list. Then the gases will be introduced into smog chamber. Under certain oxidant and reaction conditions (temperature, humidity and light intensity), the conversion velocities will be measured to identify the active VOCs compound. The SOA formation and conversion mechanism will be studied intensively. By changing the reaction conditions, the key factors influencing the SOA formation and conversion will be identified. The ambient air will be introduced into the smog chamber as background air to study the real influence of VOCs and SOA polluiton to indoor air quality. This study will complement the shortage of the influence of SOA resulted from furniture plank pollution to indoor air quality.

英文关键词： furniture wood；VOCs；secondary organic aerosol；photocatalyst oxidation；TiO2/ACF