{
 "schema_version": 1,
 "metric_id": "L1",
 "name": "Urban PM2.5 exposure",
 "domain": "L",
 "tier": "headline",
 "grade": "A",
 "frequency": "A",
 "harmonized_international": true,
 "caveats": "Station mix changed over time; modelled urban average; the only Part II indicator in all three anchor frameworks with pre-1990 data.",
 "methodology_notes": "PIN: RIVM LML data channel (API or manual drop).",
 "owner_review_required": false,
 "sources": [
  {
   "org": "manual:RIVM",
   "dataset_code": "manual:L1",
   "url": "https://www.luchtmeetnet.nl",
   "licence": "RIVM open data"
  }
 ],
 "breaks": [],
 "primary": {
  "key": "manual:RIVM|manual:L1|NL|ug/m3|metric=GBI_3yr_avg_urban_background",
  "dataset_code": "manual:L1",
  "source_org": "manual:RIVM",
  "geography": "NL",
  "unit_code": "ug/m3",
  "dimensions": {
   "metric": "GBI_3yr_avg_urban_background"
  },
  "frequency": "A",
  "points": [
   {
    "period": "2011",
    "value": 17.0
   },
   {
    "period": "2012",
    "value": 15.7
   },
   {
    "period": "2013",
    "value": 14.6
   },
   {
    "period": "2014",
    "value": 13.6
   },
   {
    "period": "2015",
    "value": 13.2
   },
   {
    "period": "2016",
    "value": 12.3
   },
   {
    "period": "2017",
    "value": 11.5
   },
   {
    "period": "2018",
    "value": 11.2
   },
   {
    "period": "2020",
    "value": 10.0
   },
   {
    "period": "2021",
    "value": 9.3
   },
   {
    "period": "2022",
    "value": 8.9
   },
   {
    "period": "2023",
    "value": 8.7
   },
   {
    "period": "2024",
    "value": 8.3
   }
  ]
 },
 "series": [
  {
   "key": "manual:RIVM|manual:L1|NL|ug/m3|metric=GBI_3yr_avg_urban_background",
   "dataset_code": "manual:L1",
   "source_org": "manual:RIVM",
   "geography": "NL",
   "unit_code": "ug/m3",
   "dimensions": {
    "metric": "GBI_3yr_avg_urban_background"
   },
   "frequency": "A",
   "points": [
    {
     "period": "2011",
     "value": 17.0
    },
    {
     "period": "2012",
     "value": 15.7
    },
    {
     "period": "2013",
     "value": 14.6
    },
    {
     "period": "2014",
     "value": 13.6
    },
    {
     "period": "2015",
     "value": 13.2
    },
    {
     "period": "2016",
     "value": 12.3
    },
    {
     "period": "2017",
     "value": 11.5
    },
    {
     "period": "2018",
     "value": 11.2
    },
    {
     "period": "2020",
     "value": 10.0
    },
    {
     "period": "2021",
     "value": 9.3
    },
    {
     "period": "2022",
     "value": 8.9
    },
    {
     "period": "2023",
     "value": 8.7
    },
    {
     "period": "2024",
     "value": 8.3
    }
   ]
  }
 ],
 "peers": [],
 "derived": [],
 "trend": {
  "direction": "down",
  "method": "OLS over last 8 annual observations, 5% significance (MBW convention)",
  "window_start": "2016",
  "window_end": "2024",
  "slope_per_year": -0.504883
 },
 "deltas": {
  "y1": -0.4,
  "y10": -5.3,
  "latest_period": "2024",
  "latest_value": 8.3
 },
 "generated_at": "2026-07-07T09:46:03+00:00"
}