Observed arrival · 2026-10-06
Observatório Global de Rejeitos
A Portuguese-language observatory presents tailings-structure failures through a decade-by-decade timeline, an interactive map, historical records and a harm index.
- For
- People tracking tailings failures and their impacts
- Worth noticing
- Its index weights deaths most heavily and states that unknown released volumes count as zero, tending to understate harm.
Field notes
The map instructions say point size represents deaths and color represents severity; users can filter by decade and structure type. The index intentionally counts a catastrophe both as a very severe failure and through its deaths and released volume, while assigning fixed weights through 2049. The page says older decades have gaps, unknown volumes contribute zero to that component, and database corrections can recalculate the series. Its reports section currently says no reports have been published.
Observed signals
Read the marks
Editorial observations of this landing page, not a rating.
One card from the complete issue