Breaking·Source-based summary

USGS released 72 kg of red dye intoIdaho river to track how water disperses

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 fly

This is a source-based summary, not original reporting by Ebenezer journalists. Source: Times of India · Original byline: TOI SCIENCE DESK. Ebenezer published 10 Sept 2026, 07:29 am. Editorial policy.

India — TOI SCIENCE DESK