2014年中國主要大氣污染物時空特征分析
[Abstract]:In this paper, NO_2,SO_2,CO,PM2.5,PM10 and other air pollution data from 161 prefecture-level cities monitored by the Ministry of Environmental Protection in 2014 are used. The present situation of air quality in 161 prefectural cities in 2014 and the seasonal and monthly variation characteristics of annual air pollution are analyzed. This paper explains the main reasons that affect the change of air pollution in different regions of China, and draws the following conclusions: (1) the air quality in different regions of China in 2014 is not optimistic in the whole year of 2014. The proportion of the number of days in 161 cities monitored by the Ministry of Environmental Protection was between 21.37% and 99.73%, and the average number of days reached the standard was 68.49%. The average number of days exceeding the standard was 31.51, of which 19.81 were mild pollution, 6.72 were moderate pollution, 3.96 were severe pollution, and the serious pollution was mainly in the high concentration area of 1.01%.PM2.5 in Beijing-Tianjin-Hebei area. Central and western Shandong, central and southern Henan, and most of Hubei; The high concentration of PM10 is mainly distributed in southern Hebei and Tarim region of Xinjiang, in which the annual average concentration of PM10 in Korla is 232.62 渭 g / m ~ (3) no _ 2, mainly in North China, Yangtze River Delta Plain, Urumqi, Xinjiang, etc. The high concentration area of SO_2 is mainly distributed in North China and the central part of Inner Mongolia, and the high concentration area of CO is mainly distributed in the middle of Inner Mongolia, most of Hebei, Shanxi, Shaanxi, and the northwest of Henan and Shandong. The top 10 cities with relatively good air quality in 2014 were Lhasa, Sanya, Yuxi, Xiamen, Haikou, Kunming, Zhanjiang, Fuzhou, Qujing, Shenzhen. The top 10 cities with relatively poor air quality are Xingtai, Baoding, Hengshui, Handan, Shijiazhuang, Zibo, Liaocheng, Jinan and Texas. Heze. (2) the seasonal variation of main air pollution in different regions of China in 2014: PM2.5,PM10,CO,SO_2 pollution is the most serious in winter, which is mainly due to the heating in northern China in winter and the increase of coal burning. The amount of exhaust gas discharged into the air is increased accordingly, and the pollution is aggravated; In addition, the frequency of inverse temperature weather in winter is larger, which is not conducive to the transport and diffusion of pollutants, resulting in the high concentration of pollutants. The seasonal variation of NO_2 concentration is not particularly obvious, and the winter concentration is slightly higher than that of other seasons. It shows that NO_2 pollution in China is mainly the result of the combined effect of motor vehicle exhaust emissions and coal burning and heating in winter. (3) monthly variation characteristics of major air pollution in different regions of China in 2014: AQI in seven regions of China ( Air quality Index). From the point of view of time characteristics, AQI is the lowest value in one year from May to September, and reaches the maximum value in one year from November to February of next year. This phenomenon is more obvious in northern China. It shows that PM2.5 pollution is the main factor affecting AQI. In terms of spatial characteristics, the eastern part of China's AQI index is larger than the western region, and North China is the region with the highest AQI index. The AQI in South China is the best. (4) the pollution cities and their influencing factors are analyzed by SPSS19.0 software. The main component analysis and cluster analysis are used to analyze the air pollution factors monitored by the Ministry of Environmental Protection. The air pollution city of our country and its influencing factors are basically consistent.
【學位授予單位】:青海師范大學
【學位級別】:碩士
【學位授予年份】:2015
【分類號】:X51
【相似文獻】
相關期刊論文 前10條
1 王珂,李作芬;淺談大氣污染物對人體健康的影響[J];云南環(huán)境科學;2003年S2期
2 高科聞;常見12種大氣污染物的危害[J];中國農(nóng)村科技;2004年02期
3 高科聞;常見12種大氣污染物的危害[J];農(nóng)技服務;2004年07期
4 王妍,劉巖,金永民,曹炳志;撫順市大氣污染物對降水pH值的影響及預測分析[J];環(huán)境保護科學;2004年06期
5 張慧敏;董萬欣;;對天津地區(qū)火電廠大氣污染物治理對策的淺析[J];天津電力技術(shù);2004年03期
6 趙曉明,董育新,王一函;大氣污染物的綜合防治[J];承德民族師專學報;2005年02期
7 ;關于擅自閑置大氣污染物處理設施認定問題的復函[J];環(huán)境保護;2005年09期
8 廖承輝;;南昌市城區(qū)大氣污染物變化規(guī)律分析[J];南昌航空工業(yè)學院學報(自然科學版);2005年03期
9 馬曉明;王東海;易志斌;尹衍鵬;;城市大氣污染物允許排放總量計算與分配方法研究[J];北京大學學報(自然科學版);2006年02期
10 ;日科學家發(fā)現(xiàn) 四成致癌性大氣污染物來自植物[J];腐植酸;2006年05期
相關會議論文 前10條
1 何靜;王同健;;鍋爐大氣污染物的防治與控制[A];新農(nóng)村建設與環(huán)境保護——華北五省市區(qū)環(huán)境科學學會第十六屆學術(shù)年會優(yōu)秀論文集[C];2009年
2 江玉華;王強;李子華;馬力;;大氣污染物對城市濃霧中邊界層結(jié)構(gòu)的影響研究[A];推進氣象科技創(chuàng)新加快氣象事業(yè)發(fā)展——中國氣象學會2004年年會論文集(下冊)[C];2004年
3 陳彬彬;林長城;蔡義勇;楊凱;王宏;;福州市大氣污染物時空變化特征分析[A];中國氣象學會2008年年會大氣環(huán)境監(jiān)測、預報與污染物控制分會場論文集[C];2008年
4 ;火電鋼鐵環(huán)評將執(zhí)行大氣污染物特別排放限值[A];《電站信息》2013年第03期[C];2013年
5 周志恩;張燦;向霆;;關于重慶市“十二五”大氣污染物減排的思考[A];2010中國環(huán)境科學學會學術(shù)年會論文集(第一卷)[C];2010年
6 李霞;王磊;楊靜;趙逸舟;;峽口地形城市影響大氣污染物變化的氣象因素研究[A];城市氣象論壇(2012年)·城市與氣候變化論文集[C];2012年
7 劉榮;潘南明;;排氣筒高度與大氣污染物最大落地濃度關系研究[A];中國環(huán)境保護優(yōu)秀論文精選[C];2006年
8 肖純凌;李舒音;尚德志;趙肅;趙輝;王任群;;模擬大氣污染物對大鼠肺功能影響的研究[A];Proceedings of Conference on Environmental Pollution and Public Health(CEPPH 2012)[C];2012年
9 吳彥;王健;劉暉;路光輝;崔新華;;烏魯木齊大氣污染物的空間分布及地面風場效應[A];中國氣象學會2008年年會城市氣象與城市可持續(xù)發(fā)展分會場論文集[C];2008年
10 劉蕊;蔡芫斌;王珊珊;趙恒;施禪臻;周睿;周斌;;大氣污染物空間分配單一權(quán)重法的局限——以福州市2011年大氣污染物的空間分配為例[A];2013中國環(huán)境科學學會學術(shù)年會論文集(第五卷)[C];2013年
相關重要報紙文章 前10條
1 記者 陳超;四成致癌性大氣污染物來自植物[N];科技日報;2006年
2 程穎;大氣污染物源解析科研課題啟動[N];平頂山日報;2007年
3 本報記者 杜悅英;盡快應對燃煤大氣污染物對公眾健康的危害[N];中國經(jīng)濟時報;2010年
4 記者 賈楠;六行業(yè)將執(zhí)行大氣污染物排放限值[N];新華每日電訊;2013年
5 本報特派記者 朱珉迕 樊江洪;六大行業(yè)大氣污染物特別排放限值[N];解放日報;2013年
6 本報記者 王爾德;47城推大氣污染物特別排放限值[N];21世紀經(jīng)濟報道;2013年
7 記者 曹愛方 通訊員 趙鳴嬋;我市大氣污染物削減量占全省三成[N];寧波日報;2013年
8 記者 程國媛;我省主要大氣污染物指標連年下降[N];山西日報;2014年
9 本報記者 鮮曉荻;隨意排放大氣污染物最高可被罰款十萬元[N];貴陽日報;2005年
10 ;第八階段控制大氣污染措施[N];北京日報;2002年
相關博士學位論文 前2條
1 李步通;幾種重要的小分子大氣污染物的激發(fā)態(tài)理論研究[D];吉林大學;2006年
2 李華;秦俑遺址坑大氣污染物理化解析及其文物劣化影響研究[D];中國科學院研究生院(地球環(huán)境研究所);2015年
,本文編號:2368569
本文鏈接:http://sikaile.net/kejilunwen/huanjinggongchenglunwen/2368569.html