厦门市夏季空气质量指数时空分布特征与+气象条件的关系 环境工程专业VIP专享VIP免费

厦门市夏季空气质量指数时空分布特征与气象条件的关系摘要随着经济的日益增长，环境问题也变得越来越严重。厦门市是福建省的一个重要城市并且也是旅游城市，风景十分优美。研究厦门市的空气质量指数与气象条件，能够更好得为改善空气质量提供依据，并作相关的准备，为厦门市创造更美好的蓝天。本文利用2015年厦门市夏季空气质量资料和气象资料,根据厦门市夏季的四个空气质量监测站点的空气质量数据，研究空气质量指数的时空分布特征与其气象条件的关系。结果表明:厦门市空气质量优良率为99.18%，其中优级率55.34%，主要的空气污染物为PM10和PM2.5。NO2和SO2月平均浓度变化不明显,但最高平均浓度都在5月份。O3平均浓度呈逐月上升趋势，SO2的平均浓度则在一天中呈下降趋势;PM10、CO浓度的月变化趋势基本相同。各污染物在不同监测点浓度也有较大差异，并且气象条件也对污染物浓度有着一定的影响。2015年相对湿度平均值和AQI平均值变化趋势每月呈正相关关系，但是气温平均值和AQI平均值变化却呈负相关关系。该论文有图10幅，表7个，参考文献15篇。关键词：空气质量指数时空分布气象条件TemporalandSpatialDistributionsCharacteristicsofAirQualityIndexandMeteorologicalConditionsinXiamenAbstractWiththegrowingeconomy,environmentproblemsbecomemoreandmoreserious.XiamenisanimportantcityinFujianprovinceanditisalsoatouristcitywherethesceneryisverybeautiful.TheresearchofXiamencityairqualityindexandmeteorologicalconditionscanprovideabetterbasisfortheimprovementoftheairqualityanddopreparationstocreateabetterblueskyrelatively.UsingthesummerairqualitydataandmeteorologicaldataofXiamencityin2015andairqualitydataoffourairqualitymonitoringstationscananalyzethespatialandtemporaldistributionsofairqualityinXiamencityanditsrelationshipwithmeteorologicalcondition.Analysisresultsshowthattheprobabilitiesofexcellentandgoodgradesforairqualitywereupto99.18%,theexcellentratewas55.34%andthemainairpollutantsarePM10andPM2.5.ThemonthlyaverageconcentrationsofNO2andSO2changedlittlewhilethemonthlyaverageconcentrationswerehighestinMay.ThemonthlyaverageconcentrationsofO3showedanincreasingtrendmonthbymonthwhiletheaverageconcentrationsofSO2inthedayshowedadownwardtrend.ThemonthlychangingtrendsoftheconcentrationsofPM10andCOweresimilar.Theconcentrationsofdifferentpollutantsindifferentmonitoringpointsarealsodifferentandmeteorologicalconditionsalsohaveacertainimpactontheconcentrationsofpollutants.Themonthlyaveragevalueofrelativehumidityhasapositivecorrelationwiththechangetrendoftheairqualityindex,buttheairqualityindexwasnegativelycorrelatedwithtemperaturemonthly.Thispaperhas10pictures,7tablesand15references.KeyWords:airqualityindexspatialandtemporaldistributionsmeteorologicalconditions目录摘要.......................................................................................................................................IAbstract..................................................................................................................................II目录....................................................................................................................................III图清单...................................................................................................................................V表清单...................................................................................................................................V1引言.....................................................................................................................................