spatial and temporal variation in pm2 5 chemical

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spatial and temporal variation in pm2 5 chemical

(PDF) Spatial and Temporal Variation in PM2.5 Chemical

Spatial and Temporal Variation in PM2.5 Chemical Composition in the United States for Health Effects Studies August 2007 Environmental Health Perspectives 115(7):989-95(PDF) Spatial and temporal variations in PM10 and PM2.5 The ambient PM 10 and PM 2.5 data collected during the fall and winter portions of the 1995 Integrated Monitoring Study (IMS95) were used to conduct Chemical Mass Balance (CMB) Modeling to determine source contribution estimates.Data from the core12345Next

ACP - Peer review - Spatial and temporal variations of the

RC C6608 'Comments on Spatial and temporal variations of the concentrations of PM10,PM2.5 and PM1 in China',Anonymous Referee #2,07 Sep 2015 RC C6808 'Comments to Spatial and temporal variations of the concentrations of PM10,PM2.5 and PM1Assessment of the health impacts of particulate matter The findings of this study indicate strong spatial and temporal variation in the chemical composition of the particle mixture and in the regional and seasonal variation in health effect estimates for PM2.5 total mass.The chemical composition of particles partially explained the heterogeneity of effect estimates.Cited by 12Publish Year 2019Author Hong Guo,Xingfa Gu,Guoxia Ma,Shuaiyi Shi,Wannan Wang,Xin Zuo,Xiaochuan ZhangSpatial and Temporal Variations in SO2 and PM2.5 Levels Spatial and Temporal Variations in SO 2 and PM 2.5 Levels Around Klauea Volcano,Hawai'i During 20072018 Rachel C.W.Whitty 1 * ,Evgenia Ilyinskaya 1 ,Emily Mason 2 ,Penny E.Wieser 2 ,Emma J.Liu 3 ,Anja Schmidt 4,5 ,Tjarda Roberts 6 ,Melissa A.Pfeffer 7 ,Barbara Brooks 8 ,Tamsin A.Mather 9 ,Marie Edmonds 2 ,Tamar Elias 10

Cited by 151Publish Year 2015Author Y.Q.Wang,X.Y.Zhang,J.Y.Sun,X.C.Zhang,H.Z.Che,Y.LiSpatial and Temporal Exposure Assessment to PM2.5 in a

This research was to conduct a pilot study for two consecutive days in order to assess fine particulate matter (PM2.5) exposure of an entire population in a community.We aimed to construct a surveillance system by analyzing the observed spatio-temporal variation of exposure.Guro-gu in Seoul,South Korea,was divided into 2,204 scale grids of 100 m each.Cited by 151Publish Year 2015Author Y.Q.Wang,X.Y.Zhang,J.Y.Sun,X.C.Zhang,H.Z.Che,Y.LiSpatio-temporal Variations in NO2 and PM2.5 over the During the 11-year study period (20052015),the CPER concentrations of both NO2 and PM2.5 decreased from 2011 to 2015 by 31.5% and 36.8%,respectively.This study successfully applies satellite remote sensing data to quantitatively analyze the spatial-temporal distributions of tropospheric NO2 and ground-level PM2.5.Cited by 156Publish Year 2012Author Michelle L BellSpatial and Temporal Variations in PM2.5 Chemical Spatial and Temporal Variations in PM2.5 Chemical Composition during Winter 2000/2001 Episodes in Central California Judith C.Chow,John G.Watson,L.-W.Antony Chen Atmospheric Science Division,Desert Research Institute,Reno,NV Introduction Three winter episodes that achieved 24-hr averages of PM2.5 > 100 µg m-3

Cited by 17Publish Year 2018Author Amit Kumar Gorai,Paul B Tchounwou,SS Biswal,Francis TuluriPM2.5 in Abuja,Nigeria Chemical characterization,source

Jun 01,2020·It contributed the lowest (2.6%) as a source to PM 2.5 mass.In terms of temporal variations,this source contributed 49.9,19.4,8.3,and 22.4% in January,April,July,and October,respectively.3.4.2.Spatial variations.The spatial contributions of the sources are illustrated in Fig.S8.The sources have comparable contributions at both sites.Cited by 17Publish Year 2019Author Liang Zhou,Chenghu Zhou,Fan Yang,Lei Che,Bo Wang,Dongqi SunSpatialTemporal Distribution Characteristics of PM 2.5 in Jul 18,2018·(5) The regression relation and spatial variability of PM2.5 pattern and its impacting factors are discussed from both global and local dimensions.Overall,if the aridity index,average annual temperature,industrial GDP,and road network density increased by 1%,PM2.5 concentrations would increase by 66.9,35.7,29.1,and 17.4%,respectively.Cited by 197Publish Year 1996Author Robert M.Burton,Helen H.Suh,Petros KoutrakisTemporal and Spatial Variation of PM2.5 in Xining atmosphere Article Temporal and Spatial Variation of PM2.5 in Xining,Northeast of the QinghaiXizang (Tibet) Plateau Xiaofeng Hu 1,2,3,Yongzheng Yin 2,Lian Duan 1,3,*,Hong Wang 2,Weijun Song 2 and Guangli Xiu 1,2,3,4,* 1 State Environmental Protection Key Laboratory of Risk Assessment and Control on Chemical Processes,East China University of Science and Technology (ECUST),Shanghai

Cited by 19Publish Year 2018Author Yuanyuan Huang,Qingwu Yan,Chuanrong ZhangCiteSeerX Spatial and temporal variation in PM 2.5

CiteSeerX Spatial and temporal variation in PM 2.5 chemical composition in the United States for health effects studies.Environ Health Perspect 115:989995.CiteSeerX - Document Details (Isaac Councill,Lee Giles,Pradeep Teregowda) BACKGROUND Although numerous studies have demonstrated links between particulate matter (PM) and adverse health effects,the chemicalCited by 1Publish Year 2019Author Bin Cheng,Lingjuan Wang-Li,Nicholas Meskhidze,John Classen,Peter BloomfieldTemporal and spatial distribution of PM2.5 chemical ·This study was designed to analyze the spatial and temporal variations of particulate matter (PM 2.5) concentrations in a mega city,Delhi.The daily PM 2.5 concentrations monitored by the Central Pollution Control Board (CPCB),New Delhi during November 2016 to October 2017 in different locations distributed in the region of the study were used for the analysis.Cited by 1Publish Year 2020Author Ishaq Dimeji Sulaymon,Xiaodong Mei,Shujian Yang,Sumin Chen,Yang Zhang,Philip K.Hopke,Philip KSpatio-temporal evolution and the influencing factors of Jan 08,2019·High concentrations of PM2.5 are universally considered as a main cause for haze formation.Therefore,it is important to identify the spatial heterogeneity and influencing factors of PM2.5 concentrations for regional air quality control and management.In this study,PM2.5 data from 2000 to 2015 was determined from an inversion of NASA atmospheric remote sensing images.

Cited by 1Publish Year 2020Author Xiaofeng Hu,Yongzheng Yin,Lian Duan,Hong Wang,Weijun Song,Guangli XiuSHORT-TERM TEMPORAL VARIATION IN PM2.5 MASS AND

Measurements in urban Atlanta of transient aerosol events in which PM2.5 mass concentrations rapidly rise and fall over a period of 3-6 hr are reported.The data are based on new measurement techniques demonstrated at the U.S.Environmental Protection Agency (EPA) Atlanta Supersite Experiment in August 1999.These independent instruments for aerosol chemical speciation of NO3-,SO42- ,NH4 Cited by 3Publish Year 2020Author Rachel C.W.Whitty,Evgenia Ilyinskaya,Emily Mason,Penny E.Wieser,Emma J.Liu,Anja Schmidt,Tjbell.ehp.2007.pdf - Research Spatial and Temporal VariationView bell.ehp.2007.pdf from BUS 242 at Multimedia University of Kenya.Research Spatial and Temporal Variation in PM2.5 Chemical Composition in theCited by 504Publish Year 2007Author Michelle L.Bell,Francesca Dominici,Keita Ebisu,Scott L.Zeger,Jonathan M.SametSpatial and Temporal Variation in PM 2.5 Chemical tial and temporal patterns of variation of PM2.5 chemical components and identify components that might be evaluated in stud-ies of PM2.5 and human health effects.For an individual chemical constituent to be a mediator of the risk associated with PM2.5 total mass,the concentration of that component must co-vary with the more gen-

Cited by 504Publish Year 2007Author Michelle L.Bell,Francesca Dominici,Keita Ebisu,Scott L.Zeger,Jonathan M.SametSpatial and Temporal Variation in PM2.5 Chemical

Because the chemical composition of PM 2.5 varies spatially and seasonally (Bell et al.2007),variation in estimated health effects could be driven by regional or seasonal variation in theCited by 504Publish Year 2007Author Michelle L.Bell,Francesca Dominici,Keita Ebisu,Scott L.Zeger,Jonathan M.SametSpatial and Temporal Variation in PM2.5 Chemical Results.Strong seasonal and geographic variations in PM 2.5 chemical composition are identified.Only seven of the 52 components contributed 1% to total mass for yearly or seasonal averages [ammonium (NH 4+ ),elemental carbon (EC),organic carbon matter (OCM),nitrate (NO 3 ),silicon,sodium (Na + ),and sulfate (SO 42 )].Cited by 68Publish Year 2013Author J.L.Hand,B.A.Schichtel,W.C.Malm,N.H.FrankACP - Spatial and temporal variations of the Spatial and temporal variations of the concentrations of PM 10, Concentrations of PM10,PM2.5 and PM1 were monitored at 24 stations of CAWNET from 2006 to 2014.The average levels of particulate matter (PM) concentrations and relationships were investigated.Seasonal,interannual and diurnal variations of the PM were revealed.

Cited by 6Publish Year 2018Author Kun Cai,Shenshen Li,Fengbin Zheng,Chao Yu,Xueying Zhang,Yang Liu,Yujing LiSpatial and temporal variation in PM(2.5) chemical

OBJECTIVES This work characterizes spatial and temporal variability of PM(2.5) (PM with aerodynamic diameter 2.5 microm) components in the United States; our objective is to identify components for assessment in epidemiologic studies.METHODS We constructed a database of 52 PM(2.5) component concentrations for 187 U.S.counties for 2000-2005.Spatial Variation in Particulate Concentrations within Spatial and temporal variations of PM2.5 concentration and composition throughout an urban area with high freeway densitythe Greater Cincinnati study.Atmospheric Environment 2004 ,38 (8) ,1091-1105.Spatial and Temporal Trends in PM2.5 Organic and Elemental We presented an overview of the spatial and temporal variability in organic and elemental carbon concentrations and their contribution to PM 2.5 reconstructed fine mass from the rural IMPROVE network and the urban CSN for data aggregated from 2007 to 2010.Interpolating these data together provides large spatial patterns from which local and regional impacts of carbonaceous aerosols across the

Spatial and Temporal Variation in PM2.5 Chemical

Results indicate important temporal and spatial variation in components of PM 2.5,which could explain regional and seasonal differences in effect estimates between PM 2.5 and mortality and hospital admissions.Understanding these relationships could lead to a better understanding of the toxicity of PM components and which sources are most damaging,which would allow more effective control of PMSpatial and Temporal Variation in PM2.5 Chemical Spatial and Temporal Variation in PM2.5 Chemical Composition in the United States for Health Effects Studies.View/ Open.2007-S~1.PDF (399.8Kb) Date 2007-07.Author. Spatial and Temporal Variation in PM2.5 Chemical Composition in the United States for Health Effects Studies.View/ Open.2007-S~1.PDF (399.8Kb) Date 2007-07.Author.Spatial and temporal variation in PM(2.5) chemical Spatial and temporal variation in PM(2.5) chemical composition in the United States for health effects studies.The subset of identified PM(2.5) components should be investigated further to determine whether their daily variation is associated with daily variation of health indicators,and whether their seasonal and regional patterns can explain the seasonal and regional heterogeneity in PM(10) (PM with aerod.

Spatial and temporal variation in PM2.5 chemical

Spatial and temporal variation in PM 2.5 chemical composition in the United States for health effects studies Michelle L.Bell,Francesca Dominici,Keita Ebisu,Scott L.Zeger ,Jonathan M.Samet Bloomberg School of Public HealthSpatial and temporal variations of PM2.5 mass closure and The impacts of PM2.5 may vary in time and space due to the spatiotemporal variations of PM2.5 number size distribution and chemical compositions.This research analyzed the latest PM2.5 chemical compositions measurements with an aim to better understand the dynamic changes of PM2.5 in response to emission reductions due to the new regulations.Spatial and temporal variations of air quality and six air Oct 23,2019·Therefore,the purpose of this study is to understand the temporal and spatial variations of PM2.5,PM10,SO 2,NO 2,CO,and O 3 in 366 cities from 2015 to 2017.We analyzed the variations

Spatial,Temporal,Chemical,and Particle Size Variations

Spatial,Temporal,Chemical,and Particle Size Variations.Task 2.1 [ARB] How does the frequency and location of excessive PM concentrations vary from year Day-to-Day Variations PM2.5 Mass Concentrations become more uniform as the episode progresses Most Uniform Day 12/26/99 1/6/01 Coefficient of 16% 20% Variation 82 ug/m3 to

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