武汉市某区域大气颗粒物的测定与分析

Measuring and analysis of the downtown ambient air-particle pollution in Wuhan City

采用电感耦合等离子体原子发射光谱法对TSP环境样品和尘源样品中的S、Si、Ti、Al、As、Ca、Pb、V等30余个元素组份进行分析并计算出各元素的含量,得到本区域大气环境TSP和污染尘源元素特征谱,并通过比较微波消解与加热消解两种方法的优劣,确定出较适应消解方法。结果表明,该区域中的A区污染源主要来自道路交通尘源和土壤尘源,B区污染源来自土壤尘源和建筑尘源。

This article aims to introduce the authors＇ make-up analysis of more than 30 elements, such as S, Si, Ti etc. , in mass samples by using the ICP-AES method, The samples are collected from the ambient atmosphere of the downtown ambient areas of Wuhan city, which can be divided into 4 kinds of out-let pollution sources （that is soil dust, building material dust, coal smog dust and traffic dust）, The authors have also calculated those content percentages in comparison with the local TSP and pollution sources elements characteristics offered by the local government organs, Then, further better digestion method is determined through comparing the microwave digestion with the heat digestion in the air, which helps the present authors make a conclusion that the primary pollution sources in the region A are originated mainly from the heavy traffic and soil pollutions, but in region B may come mainly from the soil and building pollutants.