金昌市人居環(huán)境空氣質量評價及預測研究
本文選題:空氣質量 + 評價; 參考:《蘭州大學》2013年碩士論文
【摘要】:目的 分析2007-2012年金昌市主城區(qū)SO2、NO2、PM10、空氣污染指數(shù)、空氣綜合污染指數(shù)的變化規(guī)律及其影響因素,并預測未來6年空氣質量的變化趨勢,評價金昌市人居環(huán)境空氣質量,進而有針對性地提出環(huán)境空氣質量改善建議和措施。 方法 對2007-2012年金昌市主城區(qū)空氣自動監(jiān)測系統(tǒng)的監(jiān)測數(shù)據(jù)進行統(tǒng)計分析,運用空氣污染指數(shù)法和空氣綜合污染指數(shù)法對金昌市空氣質量進行評價,并找出主要污染物的主要來源;采用灰色預測模型對金昌市未來6年的空氣質量變化趨勢進行預測。 結果 2007-2012年金昌市主城區(qū)SO2年均濃度呈顯著下降趨勢,NO2和PM10年均濃度下降趨勢不明顯,但6年來SO2一直是金昌市的首要污染物。金昌市主城區(qū)空氣綜合污染指數(shù)呈顯著下降趨勢,良好以上天數(shù)占全年的比率總體呈上升趨勢。SO2和NO2濃度在第一季度和第四季度高于第二、三季度,PM10濃度在第一、二、四季度均較高,第三季度略低。3個監(jiān)測點間SO2年均濃度無顯著性差異,運輸部監(jiān)測點NO2年均濃度低于市科委監(jiān)測點,公司二招監(jiān)測點PM10年均濃度顯著低于其它兩個監(jiān)測點。預測結果顯示,未來6年金昌市空氣綜合污染指數(shù)及主要污染物濃度均呈逐年下降趨勢。 結論 金昌市人居環(huán)境空氣質量逐年好轉,但變化幅度不大。工業(yè)生產(chǎn)廢氣排放是金昌市空氣污染的主要來源。金昌市應繼續(xù)大力推進“工程減排”、“結構減排”和“管理減排”等大氣污染綜合治理措施,有針對性的加強SO2治理工程,提升金昌市人居環(huán)境空氣質量。
[Abstract]:Purpose This paper analyzes the variation law and influencing factors of so _ 2O _ 2O _ 2N _ (10) PM10, air pollution index and air comprehensive pollution index in Jinchang City from 2007 to 2012, and predicts the changing trend of air quality in the next six years, and evaluates the air quality of residential environment in Jinchang City. Furthermore, suggestions and measures for improving ambient air quality are put forward. Method The monitoring data of the automatic air monitoring system in the main urban area of Jinchang City from 2007 to 2012 were statistically analyzed. The air quality of Jinchang City was evaluated by using the air pollution index method and the comprehensive air pollution index method, and the main sources of the main pollutants were found out. The grey prediction model is used to predict the trend of air quality change in Jinchang city in the next 6 years. Result From 2007 to 2012, the average annual concentration of SO2 in the main urban area of Jinchang City showed a significant downward trend. The average annual concentration of no _ 2 and PM10 was not obvious, but SO2 had been the main pollutant in Jinchang city in the past six years. The comprehensive air pollution index of Jinchang city showed a significant downward trend, and the ratio of good days to the whole year showed an upward trend. The concentrations of SO2 and NO2 in the first and fourth quarters were higher than those in the second quarter, and the concentrations of PM10 in the third quarter were in the first and second quarters, and the concentrations of PM10 in the third quarter were in the first and second quarters. There was no significant difference in the average annual SO2 concentration among the three monitoring points, the average annual NO2 concentration of the monitoring points of the Ministry of Transport was lower than that of the monitoring points of the Municipal Science and Technology Commission, and the average annual concentration of PM10 in the two monitoring points of the company was significantly lower than that of the other two monitoring points. The forecast results show that the comprehensive air pollution index and the main pollutant concentration in Jinchang city will decrease year by year in the next 6 years. Conclusion Jinchang City living environment air quality improved year by year, but the change is not big. Exhaust gas emission from industrial production is the main source of air pollution in Jinchang City. Jinchang should continue to push forward the comprehensive measures such as "engineering emission reduction", "structural emission reduction" and "management emission reduction", so as to strengthen the SO2 treatment project and improve the air quality of residential environment in Jinchang City.
【學位授予單位】:蘭州大學
【學位級別】:碩士
【學位授予年份】:2013
【分類號】:R122.1
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