小张庄近地面大气环境特性变化观测分析

根据１９９３年１０月，１９９５年５月和１９９７年４月在农业生态环境“全球５００佳”－安徽省颖上县小张庄（３４°４７′Ｎ，１１６°２３′Ｅ）所进行的近地面污染气体（ＳＯ２，Ｏ３，ＮＯｘ）和气溶胶的观测结果，给出了这些微量气体的浓度平均概况及随时间和季节变化的一些特征，这三次观测表明，小张庄大气环境质量是持续好的，地面Ｏ３浓度主要取决于地面总辐射强度控制下的光化学反应过程；小张庄大气气溶胶粒子９９％是

MEASUREMENTS AND ANALYSES OF THE VARIATION OF THE ATMOSPHERIC ENVIRONMENTAL PROPERTIES IN XIAOZHANGZHUANG ECO-VILLAGE AREA

The concentrations of pollutant gases (including SO 2,O 3 and NO X) and aerosol at the ground surface were measured in Xiaozhangzhuang eco village area during October 1997,May 1995 and April 1997. The results obtained from measurements and analyses display some average characteristics, time variation and season variation of pollutant gases. It shows that the atmospheric environment over Xiaozhangzhuang area is clear during the measurements. The results show that the photochemical reaction controlled by overall solar radiation is the determining factors affecting the variation of the surface O 3. Fine aerosol is over 99% of the total amount. Its daily variation is strongly influenced by convection and turbulent diffusive transfer and its concentration spectrum displays single peak and single valley. There are obvious correlation between aerosol concentration and air humidity.