【摘要】 应用受体模式的化学质量平衡法对玉溪市中心城区大气颗粒物的来源进行解析。分别采集玉溪市监测站、大营街和东风水库 3个监测点大气中总悬浮颗粒物 (TSP)样品 ,同时采集了土壤尘、煤烟尘、钢铁尘、交通尘和建材尘等 5种源样品。采用电感耦合等离子体光谱仪分别测定受体和源样品中 1 1种元素的质量比。建立玉溪市源解析的化学质量平衡受体模型 ,模型的计算得出了这 5种污染源对TSP的贡献率分别是土壤尘为 4 0 .75%、建材尘为 31 .0 6 %、煤烟尘为 1 8.37%、钢铁尘为 8.0 9%和交通尘为 1 .73%。更多还原

【Abstract】 The pollution sources of particulate matter in the urban ambient air of Yuxi city were analyzed by the chemical mass balance method (CMB) based on receptor model. The samples of total suspended particulate (TSP) were collected at three sites of Municipal Environmental Monitoring Station, Daying Street and Dongfeng Reservoir. At the same time, the samples of 5 sources were collected, such as soil dust, building material dust, coal smoke dust, steel dust and traffic dust. Sixteen elements in both source samples and receptor samples were measured by ICP-AES (Inductively Coupled Plasma Atomic Emission Spectrometry). The CMB model for Yuxi City was developed. The contribution rates of five sources to TSP were got through the model calculating: soil dust was 40.75 %,building material dust was 31.06 %,coal smoke dust was 18.37 %,steel dust was 8.09 % and traffic dust was 1.73 %.更多还原