城市绿化树种挥发性有机物特征及其对臭氧和二次有机气溶胶生成潜势研究  

Volatile Organic Compounds of Urban Greening Tree Species and the Influence on Ozone and Secondary Organic Aerosol

作　　者：贺梦璇 颜潇 莫训强 李洪远[3] He Mengxuan;Yan Xiao;Mo Xunqiang;Li Hongyuan;无(School of Geographic and Environmental Sciences,Tianjin Normal University,Tianjin 300387,China;School of Geographic Sciences,East China Normal University,Shanghai 200241,China;College of Environmental Science and Engineering,Nankai University,Tianjin 300350,China)

机构地区：[1]天津师范大学地理与环境科学学院,天津300387 [2]华东师范大学地理科学学院,上海200241 [3]南开大学环境科学与工程学院,天津300350

出　　处：《南开大学学报（自然科学版）》2022年第6期90-97,104,共9页Acta Scientiarum Naturalium Universitatis Nankaiensis

基　　金：国家自然科学基金(32171853);天津师范大学校博士基金(52XB1902)。

摘　　要：分析了32种常见绿化树种释放的挥发性有机物,探究植物源挥发性有机物特征及其和臭氧、二次有机气溶胶生成潜势的关系,并筛选出城市绿化中低生成潜势树种.结果显示,臭氧生成潜势与烃类、酯类、醇类、酮类、醛类的释放量显著相关(P<0.01),这五类化合物占臭氧生成潜势总变化的60.3%.二次有机气溶胶生成潜势与烃类、醇类、醛类和酯类的释放量显著相关(P<0.01),这四类化合物占二次有机气溶胶总变化的73.2%.臭椿(Ailanthus altissima)和樱花(Cerasus serrulata var. lannesiana)对臭氧和二次有机气溶胶生成潜势相对较弱,豆科和杨柳科包含的12个树种对臭氧和二次有机气溶胶生成潜势相对较强.To explore the characteristics of biogenic volatile organic compounds, and potential correlation between Biogenic volatile organic compounds and ozone and secondary organic aerosols, and to screen out better tree species for urban greening, the volatile organic compounds released by 32 common green tree species were analyzed. The results showed that hydrocarbons, esters, alcohols, ketones and aldehydes were significantly correlated with ozone generation(P<0.01), which accounting for 60.3% in the total variation of ozone. Hydrocarbons, alcohols, aldehydes and esters also showed significant relationship with secondary organic aerosols(P<0.01), which accounting for 73.2% in the total variation of secondary organic aerosols. Ailanthus altissima and Cerasus serrulata var. lannesiana were found weak correlation with ozone and secondary organic aerosols generation, while 12 tree species such as Leguminosea and Salicaceae were strongly related.

关 键 词：植物源挥发性有机物 臭氧 二次有机气溶胶 

分 类 号：X5[环境科学与工程—环境工程]