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    • Annual PM2.5 Concentrations for Countries and Urban Areas, 1998-2016

    Metadata Updated: April 24, 2025

    The 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.

    Access & Use Information

    Public: This dataset is intended for public access and use. License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

    Downloads & Resources

    References

    https:/doi.org/10.7927/49vn-7351

    Dates

    Metadata Created Date December 1, 2022
    Metadata Updated Date April 24, 2025

    Metadata Source

    Harvested from NASA Data.json

    Other Data Resources

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date December 1, 2022
    Metadata Updated Date April 24, 2025
    Publisher SEDAC
    Maintainer
    Identifier C2038014399-SEDAC
    Data First Published 2021-04-06
    Language en-US
    Data Last Modified 2025-04-23
    Category SDEI, geospatial
    Public Access Level public
    Bureau Code 026:00
    Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
    Schema Version https://project-open-data.cio.gov/v1.1/schema
    Catalog Describedby https://project-open-data.cio.gov/v1.1/schema/catalog.json
    Harvest Object Id 9c0f124b-7979-4c5b-a203-e0e4e8fdd5ab
    Harvest Source Id 58f92550-7a01-4f00-b1b2-8dc953bd598f
    Harvest Source Title NASA Data.json
    Homepage URL https://doi.org/10.7927/rja8-8h89
    Metadata Type geospatial
    Old Spatial -180.0 -54.85 180.0 69.85
    Program Code 026:001
    Related Documents https:/doi.org/10.7927/49vn-7351
    Source Datajson Identifier True
    Source Hash 5e110517f80484f0c13d31fce11aabcaa668b4bc5b0b9c7ecb9905866574b761
    Source Schema Version 1.1
    Spatial
    Temporal 1998-01-01T00:00:00Z/2016-12-31T00:00:00Z

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