1Center for International Earth Science Information Network - CIESIN - Columbia University20210406Annual PM2.5 Concentrations for Countries and Urban Areas, 1998-20161.00vector, tabularPalisades, NYNASA Socioeconomic Data and Applications Center (SEDAC)https://doi.org/10.7927/rja8-8h89trueThe Annual PM2.5 Concentrations for Countries and Urban Areas, 1998-2016, consists of mean concentrations of particulate matter (PM2.5) for countries and urban areas. The PM2.5 data are from the Global Annual PM2.5 Grids from MODIS, MISR and SeaWiFS Aerosol Optical Depth (AOD) with GWR, 1998-2016. The urban areas are from the Global Rural-Urban Mapping Project, Version 1 (GRUMPv1): Urban Extent Polygons, Revision 02, and its time series runs from 1998 to 2016. The country averages are population-weighted such that concentrations in populated areas count more toward the country average than concentrations in less populated areas, and its time series runs from 2008 to 2015.To provide an annual global surface of concentrations (micrograms per cubic meter) of mineral dust and sea-salt filtered fine particulate matter of 2.5 micrometers or smaller (PM2.5) in countries and urban areas for large-scale health and environmental research1998010120161231publication dateAs needed-180.000000180.00000069.850000-54.850000GCMD Science Keywords, Version 8.6EARTH SCIENCE > ATMOSPHERE > AEROSOLS > PARTICULATE MATTEREARTH SCIENCE > ATMOSPHERE > AIR QUALITY > PARTICULATESSEDAC ThemeHealthRemote SensingSustainabilityUrbanData GranularityGlobalISO TopicEnvironmentHealthCIESIN Location Terms, Version 3.1GlobalNoneThis work is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0). Users are free to use, copy, distribute, transmit, and adapt the work for commercial and non-commercial purposes, without restriction, as long as clear attribution of the source is provided.NASA Socioeconomic Data and Applications Center (SEDAC)mailing and physical address
CIESIN, Columbia University, 61 Route 9W, P.O. Box 1000
PalisadesNew York10964USA+1 845-365-8920+1 845-365-8922ciesin.info@ciesin.columbia.edutruehttps://sedac.ciesin.columbia.edu/downloads/maps/sdei/sdei-annual-pm2-5-concentrations-countries-urban-areas-v1-1998-2016/sedac-logo.jpgJPEG-1Center for International Earth Science Information Network - CIESIN - Columbia University.20210406Documentation for the Annual PM2.5 Concentrations for Countries and Urban Areas, 1998-2016documentationPalisades, NYNASA Socioeconomic Data and Applications Center (SEDAC)https:/doi.org/10.7927/49vn-7351truefalsefalseRasterGrid Cell36000124701false0.1000000.100000Decimal degreesWGS84WGS846378137.000000298.257224Annual PM2.5 Concentrations for Countries and Urban Areas, 1998-2016 DIST 1NASA Socioeconomic Data and Applications Center (SEDAC)mailing and physical address
CIESIN, Columbia University, 61 Route 9W, P.O. Box 1000
PalisadesNew York10964USA+1 845-365-8920+1 845-365-8922ciesin.info@ciesin.columbia.edutrueCIESIN_SEDAC_SDEI_APM25_URBANCIESIN follows procedures designed to ensure that data disseminated by CIESIN are of reasonable quality. If, despite these procedures, users encounter apparent errors or misstatements in the data, they should contact SEDAC User Services at +1 845-365-8920 or via email at ciesin.info@ciesin.columbia.edu. Neither CIESIN nor NASA verifies or guarantees the accuracy, reliability, or completeness of any data provided. CIESIN provides this data without warranty of any kind whatsoever, either expressed or implied. CIESIN shall not be liable for incidental, consequential, or special damages arising out of the use of any data provided by CIESIN.false0The data in Esri Shapefile (.shp) and Microsoft Excel (.xlsx) formats are available from the NASA Socioeconomic Data and Applications Center (SEDAC).1ShapefilefalseUnziphttps://sedac.ciesin.columbia.edu/data/set/sdei-annual-pm2-5-concentrations-countries-urban-areas-v1-1998-2016/data-download-1Data accessible via the data set landing page.1ExcelfalseUnziphttps://sedac.ciesin.columbia.edu/data/set/sdei-annual-pm2-5-concentrations-urban-areas-v1-1998-2016/data-download-1Data accessible via the data set landing page.1120210406Present2020092320220407Center for International Earth Science Information Network (CIESIN) Metadata Administrationmailing and physical address
CIESIN, Columbia University, 61 Route 9W, P.O. Box 1000
PalisadesNew York10964USA+1 845-365-8988+1 845-365-8922metadata@ciesin.columbia.edutrueFGDC Content Standards for Digital Geospatial MetadataFGDC-STD-001-1998local time