研究简报
陈乐恬,佟玉芹,方精云.高纬度和北极地区空气中SO2、NO2和NH3浓度的观测[J].环境科学学报,1997,17(2):248-251
高纬度和北极地区空气中SO2、NO2和NH3浓度的观测
- A SURVEY OF SO2, NO2 AND NH3 CONCENTRATIONS IN ATMOSPHERE AT HIGH LATITUDES AND ARCTIC
- 陈乐恬
- 中国科学院生态环境研究中心, 北京 100085
- 佟玉芹
- 中国科学院生态环境研究中心, 北京 100085
- 方精云
- 中国科学院生态环境研究中心, 北京 100085
- 摘要: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值, 用被动采样方法收集了3个地区的空气样品, 并就其中的SO2、NO2和NH3进行了化学分析.与此同时在北京地区用同样的方法收集空气样品, 进行相同项目的化学分析.本文作为研究北极环境背景值工作的一部分, 着重探讨该地区空气中上述痕量气体的浓度分布, 并与其它地区进行比较, 以期对北极地区的空气质量有一初步了解.
- Abstract:Simple passive diffusive samples were used for the determination of SO2, NO2 and NH3 in atmosphere from three stations at high latitudes and Arctic area. The concentrations of SO2, NO2 and NH3 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 SO2, NO2 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.
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