{
  "pack": "air_quality",
  "as_of": "2026-09-06",
  "coverage": [
    "BRN",
    "KHM",
    "IDN",
    "LAO",
    "MYS",
    "MMR",
    "PHL",
    "SGP",
    "THA",
    "VNM",
    "TLS"
  ],
  "sources": [
    {
      "metric": "pm25_mean_exposure",
      "wdi": "EN.ATM.PM25.MC.M3",
      "underlying": "IHME GBD 2023",
      "vintage": "2023"
    },
    {
      "metric": "pm25_pop_above_who_pct",
      "wdi": "EN.ATM.PM25.MC.ZS",
      "underlying": "IHME GBD 2017",
      "vintage": "2017",
      "who_threshold_ug_m3": 10,
      "note": "WDI uses AQG 2005 (10), not AQG 2021 (5)"
    },
    {
      "metric": "co2_emissions_pc",
      "wdi": "EN.GHG.CO2.PC.CE.AR5",
      "underlying": "EDGAR/JRC + IEA",
      "vintage": "2024"
    },
    {
      "metric": "co2_emissions_mt",
      "wdi": "EN.GHG.CO2.MT.CE.AR5",
      "underlying": "EDGAR/JRC + IEA",
      "vintage": "2024"
    },
    {
      "metric": "fossil_fuel_elec_pct",
      "wdi": "EG.ELC.FOSL.ZS",
      "underlying": "IEA",
      "vintage": "mixed 2021-2023"
    },
    {
      "metric": "fossil_fuel_energy_pct",
      "wdi": "EG.USE.COMM.FO.ZS",
      "status": "GAP",
      "reason": "post-2015 zeros"
    }
  ],
  "rules": [
    "No invented numbers",
    "No city AQI snapshots as national series",
    "Do not ship EG.USE.COMM.FO.ZS zeros",
    "Badge mixed vintages / \u20202017 on WHO exceedance"
  ],
  "wdi_api_lastupdated": "2026-07-13"
}