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《Environmental Science & Technology》 2008-01
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Study on Calculating Method of Aerosol Extinction Coefficients

DAI Bing,LUO Xiang-dong,CHANG He-ming(Nantong University,Nantong 226007,China)  
Based on Mie' theory and previous calculating method of extinction coefficients for particles of the same compositions,average theoretical and equivalent calculating method of extinction coefficients for aerosols of various compositions was established.Results showed that the equivalent method used equivalent refractive index of volume proportion was reliable.With the development of measurement technology,aerosols were classified in several groups of similar compositions,and extinction coefficients of actual complicate aerosols can be calculated.The application to Kleiner Feldberg' experimental data showed that the method was reliable and feasible,which will provide a new theoretical method for studying optical characteristics of aerosols and for analyzing air environment quality.
【Fund】: 江苏省高校自然科学基金资助项目(04KJB610106);; 江苏省自然科学基金资助项目(BK2004403)
【CateGory Index】: X831
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