主动采样技术在中国大气POPs监测中的应用

Application of Active Air Sampling in Monitoring of Persistent Organic Pollutions in Atmosphere of China

为了履行斯德哥尔摩公约,查明持久性有机污染物(POPs)在中国大气环境介质的存在水平,该研究首次采用主动采样技术,在中国境内大尺度范围内进行了环境大气中POPs的监测工作。利用主动采样技术,可以在短时间内采集数百立方米的大气样品,分别利用玻璃纤维滤膜采集大气颗粒物(固相)中的POPs,同时使用聚氨酯泡沫(PUF)吸附气态的POPs。该采样技术还便于样品的运输和保存。研究表明,大气主动采样技术可以很好地运用于区域大气POPs的监测工作并填补了我国在POPs履约监测中专用仪器设备的空白。

For implementation of the Stockholm Convention, monitoring the concentrations of Persistent Organic Pollutions （POPs） in atmosphere of China, the active air sampling technology was firstly used in environmental atmosphere POPs monitoring in large-scale range of China. Through active air sampling, hundreds stere of air sample can be get in short times, in which the atmospheric particulates can be collected by fiberglass filter, while gaseous POPs in the atmosphere can be adsorbed by polyurethane foam （PUF）, so in the same time POPs in atmospheric particulates （solid state） and gaseous state can be get respectively. Moreover, it is convenient for collecting sample to transportation and conservation. The results demonstrated that active air sampling technology can be used in the monitoring of POPs in the atmosphere at a regional scale, and filled gaps in special equipment for implementation of the Stockholm Convention in China.