PM2.5曝露2020

Population-weighted exposure to ambient PM2.5 pollution is defined as the average level of exposure of a nation's population to concentrations of suspended particles measuring less than 2.5 microns in aerodynamic diameter, which are capable of penetrating deep into the respiratory tract and causing severe health damage. Exposure is calculated by weighting mean annual concentrations of PM2.5 by population in both urban and rural areas.

{
  "id": "EN.ATM.PM25.MC.M3",
  "name": "PM2.5 air pollution, mean annual exposure (micrograms per cubic meter)",
  "unit": "",
  "source": {
    "id": "2",
    "value": "World Development Indicators"
  },
  "sourceNote": "Population-weighted exposure to ambient PM2.5 pollution is defined as the average level of exposure of a nation's population to concentrations of suspended particles measuring less than 2.5 microns in aerodynamic diameter, which are capable of penetrating deep into the respiratory tract and causing severe health damage. Exposure is calculated by weighting mean annual concentrations of PM2.5 by population in both urban and rural areas.",
  "sourceOrganization": "Global Burden of Disease Study 2023 (GBD 2023) Air Pollution Exposure Estimates and Risk Curves 1990-2023, GBD Collaborator Network, uri: https://ghdx.healthdata.org/record/ihme-data/gbd-2023-air-pollution-exposure-estimates-1990-2023, note: Need to create account to retrieve data., publisher: Institute for Health Metrics and Evaluation (IHME), date accessed: 2026-04-03, date published: 2026-01-23",
  "topics": [
    {
      "id": "16",
      "value": "Urban Development "
    },
    {
      "id": "6",
      "value": "Environment "
    }
  ]
}