{
  "schema_version": 1,
  "slug": "air-quality-portland",
  "title": "AIR Quality Portland",
  "canonical_url": "https://signalmeaning.com/signals/air-quality-portland/",
  "json_url": "https://signalmeaning.com/data/signals/air-quality-portland.json",
  "summary": "Unhealthy air quality alerts and wildfire smoke enveloping Portland and nearby regions",
  "why_now": "Clustered reporting of worsening air quality and official alerts cited in the evidence created immediate urgency and drove the spike.",
  "evidence_summary": "- Local news outlets report unhealthy air due to wildfire smoke and heat with multi-city air quality alerts (KATU, KDRV, oregonlive.com). - Headlines indicate Portland reached worst air quality among major cities, signaling acute local environmental impact. - Why_this_is_trending explicitly cites clustered coverage about air quality alerts and wildfire smoke.",
  "caveat": "Signal Type: Local News / Civic Event",
  "collected_at": "Thu, 6 Aug 2026 07:40:00 -0700",
  "signal_type": "Local News / Civic Event",
  "score": 88.0,
  "score_field": "adjusted_score",
  "state": "PUBLISH",
  "evidence": [
    "Wildfire smoke and heat bring unhealthy air to Portland; relief expected by Friday - KATU"
  ],
  "sources": [
    {
      "label": "Wildfire smoke and heat bring unhealthy air to Portland; relief expected by Friday - KATU",
      "source": "KATU",
      "url": "https://news.google.com/rss/articles/CBMihwJBVV95cUxQcjROVkdRVzhXSGZiTUFlZkFMR00zbGhzQUZJV3VSWUpRVm83Snd1WWFKczdscFB0TjJwdDlyREZrdWtXVVZ1bmZEWWVpRjRuNnoweGZhQnpqQWpnTHZuNWNhNFVaYzlGTEJSaUNhYnRXUHRZNHQ1TVNUTWdUNnlKX0RKVERyUHUwNm9GVmJwSVRpWVlFZzBpVFhGQm9YX1QyQlkzMy1ocDNENUY1TjRNanZYZzhueHJ5d045dnlTOGZLUjl6TVZWYU9Zd3NNZWV2eXpRaUtRRDNNVExCbFlfNGdsdHJLTHpzOV9kbHQ2Z29JUUdYWnMyRVFtc2NBUWU0d0pSTVBPYw?oc=5"
    }
  ],
  "provenance": {
    "record_id": "202608070102_signal_Quality-7-air-quality-portland",
    "batch_id": "202608070102",
    "input_files": {
      "Quality": "202608070102_signal_Quality.txt",
      "Musk": "202608070102_signal_Musk.txt",
      "Kurzweil": "202608070059_signal_Kurzweil.txt",
      "Jobs": "202608070057_signal_Jobs.txt",
      "Buffett": "202608070055_signal_Buffett.txt",
      "Bezos": "202608070055_signal_Bezos.txt"
    }
  }
}