用核分析技术研究上海市空气和水环境污染

A study of air and water pollution by means of nuclear techniques

用扫描质子微探针对上海市中心区和若干排放源的大气气溶胶单颗粒的质子激发X射线能谱进行了测量和形貌分析 ,然后用人工神经网络计算机识别技术追踪市中心区污染的来源 ,确定各排放源对它的贡献 ;用穆斯堡尔效应研究了市中心高架桥和隧道内含铁大气气溶胶颗粒的铁化学形态、尺寸和浓度 ,以及使用低本底放射性测量技术研究了苏州河水的α。

In this paper the atmospheric aerosols and water pollution in Shanghai were studied by the nuclear microprobe, then the pattern recognition technique was applied to trace the emitter source of aerosol particles. Three iron-containing atmospheric aerosols collected from different area zone were analyzed by Mssbauer spectroscopy, their chemical composition, size of particles and concentration were determined. The intensities of α, β radioactivity were determined by a low background detector.