【摘要】 化学质量平衡是被广泛用于空气质量管理的受体模型之一。由于混合源(城市扬尘)和单一源因颗粒物源谱的严重共线性,采用美国环境保护署推荐使用的EPA-CMB8.2,无法定量解析出各排放源初始态和扬尘态颗粒物的贡献值和分担率。针对这一问题,完善和规范了"二重源解析"技术原理,开发了具有"二重源解析"功能的NKCMB3.0。对鞍山市样品污染物来源解析的试验结果表明,"二重源解析"技术在对混合源和单一源同时进行源解析时是有效的。更多还原

【Abstract】 Nested source apportionment technique was a method to analyze the emission source of particulate matter in air environment.Base on which,the contribution and share rate of individual sources and mixed source(urban resuspended dust) to receptor were obtained by synchronously calculated using chemical mass balance(CMB) model.The previous mathematical formulas of the nested source apportionment technique were improved and standardized.System application of nested source apportionment was realized in NKCMB3.0 software,which was the modification of EPA-CMB8.2 with the optimum fitting fuction.The software was applied in apportionment the monitoring data of Anshan City and solved the problem of collinearity between individual sources and mixed source effectually.Therefore,the NKCMB3.0 software could be used for air quality management.更多还原