中文摘要：

于2009～2010年,利用风标式花粉采集器,采集了上海不同区域春、秋、冬季的飞散花粉和大气颗粒物样品,并于春季（2010年4月）利用重力花粉采集器在不同高度采集了飞散花粉样品,以及不同区域悬铃木的花粉.对风标花粉采样器采集的样品进行溶酸处理后进行花粉鉴定;对重力法采集的花粉样品染色后直接进行观察.利用高分辨的扫描电镜（SEM）对悬铃木花粉上吸附的大气颗粒物进行了微观表征.结果显示,上海春季大气中的花粉以木本植物花粉为主.不同区域悬铃木花粉上所吸附的颗粒物组分有所差异.冬季和春季大气颗粒物（总悬浮颗粒物）中的SO4^2-的浓度均为所检测离子（Na^＋、K^＋、Ca^2＋、Mg^2＋、NH4^＋、NO3^-、SO4^2-、Cl^-）中浓度最高的,NO3^-、SO4^2-、NH4^＋在冬季样品中要比春季样品中的浓度高.上海大气颗粒物中的地壳元素的质量浓度从高到低为Ca〉Na〉Mg〉K.

英文摘要：

Ambient pollens and atmospheric particulates samples were collected in different regions of Shanghai in spring,autumn and winter from 2009 to 2010 by Pierre Cour pollen samplers.Distribution of ambient pollens at different heights were investigated by using of Durham pollen samplers in spring（April,2010）,additionally,we collected Platanus grains in different regions.The pollens collected by Pierre Cour pollen samplers were identified by light microscope after the samples were treated with acids,while the pollens collected by Durham pollen samplers were observed after the pollens were stained.Microscopic morphologies of PM which adsorbed on Platanus grains were obtained by using SEM.Our results showed that woody plant pollens were the dominant airborne pollens during spring.Pollutant characters absorbed on Platanus grains which were sampled in different regions were different.The ion chromatography results showed that the concentration of SO4^2-was highest in the detected ions,including Na^＋,K^＋,Ca^2＋,Mg^2＋,NH4^＋,NO3^-,SO4^2-and Cl^-.The concentrations of NO3^-,SO4^2-,NH4^＋ were higher in winter than that in spring.Elemental analysis using ICP-AES indicated that mass concentrations of crustal elements in Shanghai PM were in the order of Ca Na Mg K.