Evaluation And Trend Research On Air Quality Of Bao-ji City

Take 1996 -2005 year monitor's values of SO₂, NO₂ and PM10 concentration monitor as the object of study, to analyze and appraise Baoji "Ninth-five" and "Tenth-five" the atmospheric environment quality, and according to the air pollutant and two essential factors of Baoji's average per person GDP, discussed the Baoji economic development and between the air pollutant withdrawal environment Kuzinieci characteristic, has carried on the analysis forecast to the atmospheric environment mass variation rule and the change tendency.Take SO₂, NO₂, PM10 as the pollution factor, carries on the pollution characteristic analysis to the Baoji atmospheric environment. And uses the air pollutant weight coefficient and the fuzzy mathematics evaluation model carries on the appraisal to the atmospheric environment quality. Obtains the Baoji atmospheric environment quality 2001-2005 year measure results finally.On the air pollutant and Baoji's average per person GDP two essential factors, discusses the Baoji economic development and between the air pollutant withdrawal environment Kuzinieci characteristic. With the aid of EXCEL and the SPSS software system, establishes the regression model separately to the air pollutant, with the aid of the SPSS software, draws three kind of air pollutants the change tendency and with the average per person GDP between fitted curve.Baoji in 2001-2005 year period air quality basic good, in the Baoji atmosphere's main pollutant's order of rank is PM₁₀>NO₂>SO₂, the Baoji main pollutant is PM10. The SO₂ pollution while has fluctuation to present the slow declining trend, this indicated that the Baoji SO₂ prevention measure has won initial success. The NO₂ pollution presents the change tendency which is steady and rising, this explained that Baoji vehicle exhaust pollution already day by day serious, must bring to the enough attention.In addition, in view of the Baoji various air pollutant density pollution present situation, aspects and so on government decision-making, engineering technology, environment quality management, economic decision-making, urban afforestation puts forward some proposals, emphasized by "prevention primarily" the region integrated control mentality, has provided certain reference for the Baoji air pollutant density pollution's integrated control.