高纬度和北极地区空气中SO_2、NO_2和NH_3浓度的观测

A SURVEY OF SO 2, NO 2 AND NH 3 CONCENTRATIONS IN ATMOSPHERE AT HIGH LATITUDES AND ARCTIC

高纬度和北极地区空气中ＳＯ２、ＮＯ２和ＮＨ３浓度的观测陈乐恬佟玉芹方精云（中国科学院生态环境研究中心，北京１０００８５）关键词：北极；被动采样；环境观测．１前言１９９５年４—５月间中国首次赴北极科学考察队在该地区进行科学考察，为研究极地周围空气的背景...

Simple passive diffusive samples were used for the determination of SO 2, NO 2 and NH 3 in atmosphere from three stations at high latitudes and Arctic area. The concentrations of SO 2, NO 2 and NH 3 were found to be below 1.0, 0.3 and 2.0 μg/m 3 respectively. These values were obtained with sampling periods of 5—10 days. These preliminary data suggest that SO 2, NO 2 concentrations should be lower 2 order of magnitude than those of Beijing area, and one order of magnitude than those from other areas with less pollution in China.