variables: 824844

This table contains all the variables of all the datasets we have at Our World In Data. Note that this includes only the information about the variables like name and default display settings, not the data itself.

Data license: CC-BY

This data as json

id name unit description createdAt updatedAt code coverage timespan datasetId sourceId shortUnit display columnOrder originalMetadata grapherConfigAdmin shortName catalogPath dimensions schemaVersion processingLevel processingLog titlePublic titleVariant attributionShort attribution descriptionShort descriptionFromProducer descriptionKey descriptionProcessing licenses license grapherConfigETL type sort dataChecksum metadataChecksum
824844 Concentrations of fine particulate matter (PM2.5) - Residence area type: Total     2024-03-06 13:53:51 2024-07-25 23:15:43     2010-2019 6403     
{}
 0     concentrations_of_fine_particulate_matter__pm2_5__residence_area_type_total grapher/who/2024-01-03/gho/concentrations_of_fine_particulate_matter__pm2_5#concentrations_of_fine_particulate_matter__pm2_5__residence_area_type_total 
{
    "filters": [
        {
            "name": "residence_area_type",
            "value": "Total"
        }
    ],
    "originalName": "Concentrations of fine particulate matter (PM2.5)",
    "originalShortName": "concentrations_of_fine_particulate_matter__pm2_5"
}
 2             The mean annual concentration of fine suspended particles of less than 2.5 microns in diameters is a common measure of air pollution. The mean is a population-weighted average for urban population in a country. ##### Rationale Air pollution consists of many pollutants, among other particulate matter. These particles are able to penetrate deeply into the respiratory tract and therefore constitute a risk for health by increasing mortality from respiratory infections and diseases, lung cancer, and selected cardiovascular diseases. ##### Definition The mean annual concentration of fine suspended particles of less than 2.5 microns in diameters is a common measure of air pollution. The mean is a population-weighted average for urban population in a country. ##### Method of measurement Concentration of PM2.5 are regularly measured from fixed-site, population-oriented monitors located within the metropolitan areas. High-quality measurements of PM concentration from all the monitors in the metropolitan area can be averaged to develop a single estimate. ##### Method of estimation Although PM is measured at many thousands of locations throughout the world, the amount of monitors in different geographical areas vary, with some areas having little or no monitoring. In order to produce global estimates at high resolution (0.1◦ grid‐cells), additional data is required. Annual urban mean concentration of PM2.5 is estimated with improved modelling using data integration from satellite remote sensing, population estimates, topography and ground measurements. 
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         float 
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 8acb04b06ceecc4ffdbcf6fff524b515 6d1f91e0239cc9af7104365465921899

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