Air quality prediction and analysis based on GM (1,1) model

In order to predict air quality in the near future based on the air quality monitoring data of Zhenjiang City from 2003 to 2006, the grey prediction GM (1, 1) model was established by use of grey system theory. The concentration of the three common air pollutants including SO2, NO2, and PM10 were predicted from 2007 to 2010. Its accuracy and feasibility were examined by comparing the monitoring data with the predictive value of the grey Prediction GM (1, 1) model from 2063 to 2006, and its accuracy meted the requirement after checking. The air pollutants concentration being predicted from 2007 to 2010 according to the GM (1, 1) model, the results showed that the air quality of Zhenjiang City in next few years would been improving little by little, and the concentration of air pollutants will be gradually declining and reach the grade 2 of national air quality standard China.