人工气溶胶烟雾箱的研发与应用  

Development and Application of the Artificial Aerosol Climate Box

作　　者：孙宁骁 刘春江[1,2,3] 朱鹏华[1,3] 吕俊瑶 章旭毅 殷杉[1,2,3] SUN Ningxiaoa;LIU Chunjiang;ZHU Penghua;Lü Junyao;ZHANG Xuyi;YIN Shan(School of Agriculture and Biology,Shanghai Jiao Tong University,Shanghai 200240,China;Shanghai Yangtze River Delta EcoEnvironmental Change and Management Observation and Research Station,Ministry of Science and Technology,Shanghai Jiao Tong University,Shanghai 200240,China;Shanghai Urban Forest Ecosystem Research Station,National Forestry and Grassland Administration,Shanghai Jiao Tong University,Shanghai 200240,China)

机构地区：[1]上海交通大学农业与生物学院,上海200240 [2]上海交通大学上海长三角区域生态环境变化与综合治理国家野外科学观测研究站,上海200240 [3]上海交通大学国家林业和草原局上海城市森林生态系统国家定位观测研究站,上海200240

出　　处：《实验室研究与探索》2022年第10期92-94,110,共4页Research and Exploration In Laboratory

基　　金：国家自然科学基金项目(31971719);上海交通大学决策咨询课题实验技术专项(JCZXSJB2020-023)。

摘　　要：植物叶片作为空气中颗粒物的天然受体,可以将大气颗粒物滞纳在其表面,从而达到净化大气的目的。针对测定野外条件下植物叶片上颗粒污染物(PM_(2.5))的干沉降速率问题,研制一台人工气溶胶烟雾箱,并建立一个简单有效的方法评价不同植物滞纳PM_(2.5)的能力。以此设备测定龙柏、水杉、樟树、悬铃木4种植物叶片在生长季PM_(2.5)干沉降速率。结果表明:4种植物叶片的PM_(2.5)沉降速率由大到小的顺序为:龙柏>悬铃木>水杉>樟树。Plant leaves,as natural receptors of airborne particles,can retain particles onto their surfaces to purify the air.Dry deposition is considered the main process for particle removal from the atmosphere,and its velocity(vd)is a crucial parameter for describing the process.In view of the problem that the current method cannot accurately measure the dry deposition rate of PM_(2.5)on plant leaves under actual field conditions,an artificial aerosol climate box is developed and a simpler and more effective method is designed to evaluate the adsorption capacity of PM_(2.5)capability in different plants.Sabina chinensis,metasequoia glyptostroboides,cinnamomum camphora,platanus acerifolia are measured by this equipment.The results has shown that sabina chinensis is significantly higher than that of other trees,PM_(2.5)dry deposition velocity of 4 species from high to low are sabina chinensis,cinnamomum camphora,metasequoia glyptostroboides,platanus acerifolia.

关 键 词：细颗粒污染物 植物叶片 干沉降速率 气溶胶烟雾箱 

分 类 号：X513[环境科学与工程—环境工程]