First published 10/1/2026, 9:27:15 AM · Last updated 10/1/2026, 9:27:15 AM

Co-occurrence of muddy off flavor and cyanotoxin genes in the polluted Guandu river waters (Rio de Janeiro, Brazil)

A journal article published 2026-10-01 reports co-occurrence of muddy off-flavor and cyanotoxin genes in polluted waters of the Guandu river in Rio de Janeiro, Brazil. The publisher is listed as Elsevier BV.

Illustrative image: Facade of Capela de Santa Catarina at night - Santa Catarina Hospital, Avenida Paulista, São Paulo, Brazil — Wilfredor/Wikimedia Commons, CC BY-SA 4.0

Categories: environment-and-climate, public-health, science-and-space

Generated scores

Scores are based on the cited reporting and use a 1–10 scale. Read the methodology.

Confidence: 6/10How certain the assessment is based on the clarity and evidence in the cited reporting.
Geographic reach: 2/10How widely the event reaches, from a local area (1) to worldwide impact (10).
Global importance: 2/10The event's broader significance, from limited importance (1) to major global importance (10).
Impact magnitude: 4/10The scale or severity of the real-world impact, from minor (1) to extreme (10).
Positivity: 2/10How harmful or beneficial the event is, from strongly harmful (1) to strongly positive (10).
Urgency: 2/10How time-sensitive the event is, from low urgency (1) to immediate attention needed (10).

Why it matters

The findings indicate contamination of a Rio de Janeiro water source with compounds and genes associated with cyanotoxins and taste issues.

Location

Sources

Co-occurrence of muddy off flavor and cyanotoxin genes in the polluted Guandu river waters (Rio de Janeiro, Brazil)

Report an issue