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An Universal Index Formula Suited to Environmental Air Quality Assessment

OUYANG Jie (Guangdong University of Technology,Guangzhou 510090,China)  
Based on the hypothesis of base values and relative values of air pollutants,the harm extent of air pollutants to environmental air quality was represented with S-curve.An universal index formula of environmental air quality assessment suited to multi-pollutant was presented for the optimum parameters using genetic algorithms.The comprehensive index of environmental air quality assessment can be calculated in the aid of the compromise active function weighting for each index .The formula is simple and easy for calculation and the results of asssessment shows high precision and comparison.
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