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  "content_date": "2026-10-16",
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      "median_gross_salary_eur_month": null,
      "unemployment_percent": null,
      "pm25_ug_m3": null
    },
    {
      "name": "Deeside",
      "canonical_url": "https://immigrationdb.com/cities/uk/deeside/",
      "population": 0,
      "rent_eur_per_m2_month": null,
      "median_gross_salary_eur_month": null,
      "unemployment_percent": null,
      "pm25_ug_m3": null
    }
  ],
  "rankings": [
    {
      "key": "pm25",
      "title": "Cleanest air",
      "items": [
        {
          "name": "Llangefni",
          "href": "/cities/uk/llangefni/",
          "value": "4.4 µg/m³ PM2.5",
          "year": "2025"
        },
        {
          "name": "Llandrindod Wells",
          "href": "/cities/uk/llandrindod-wells/",
          "value": "4.9 µg/m³ PM2.5",
          "year": "2025"
        },
        {
          "name": "Kinmel Bay",
          "href": "/cities/uk/kinmel-bay/",
          "value": "4.9 µg/m³ PM2.5",
          "year": "2025"
        },
        {
          "name": "Ruthin",
          "href": "/cities/uk/ruthin/",
          "value": "4.9 µg/m³ PM2.5",
          "year": "2025"
        },
        {
          "name": "Caernarfon",
          "href": "/cities/uk/caernarfon/",
          "value": "5.0 µg/m³ PM2.5",
          "year": "2025"
        }
      ]
    }
  ]
}