{
  "id": 6561918,
  "title": "USGS released 72 kg of red dye into Idaho river to track how water disperses",
  "url": "https://urgent.news/2026/09/10/usgs-released-72-kg-of-red-dye-into-idaho-river-to-track-how-water",
  "topic": "culture",
  "section": "Culture",
  "published": "2026-09-10T07:29:04.000Z",
  "source": {
    "name": "Times of India",
    "slug": "times-of-india",
    "url": "https://timesofindia.indiatimes.com/science/discovery/in-2017-usgs-released-72-57-kg-of-red-dye-into-idahos-kootenai-river-in-90-seconds-aircraft-1000-metres-above-mapped-the-plume-in-0-5-metre-pixels-to-study-river-dispersion/articleshow/133995890.cms"
  },
  "original_language": "en",
  "account": null,
  "summary": "In 2017, the US Geological Survey released 72.57 kg of Rhodamine WT dye into Idaho’s Kootenai River over 90 seconds to study how a tracer moves through flowing water. Researchers tracked the dye using instruments in the river and hyperspectral images captured from an aircraft flying 1,000 metres above the ground, with images recorded in 0.5-metre pixels across 48 spectral bands.",
  "key_points": [],
  "editors_take": null,
  "illustration": null,
  "coverage": {
    "outlets": 1,
    "also_reported_by": []
  },
  "ai_generated": true,
  "disclaimer": "Summaries, key points and the editor’s take are written by software from other outlets’ reporting and may contain errors — always check the linked original."
}