In 2011, Colorado linked 90% of Lower Gunnison River selenium pollution to farming. 11 years later, farm work cut selenium by 50%, helping the river meet standards today
For years, selenium from irrigated farmland posed a challenge for Colorado’s Lower Gunnison River. Irrigation can mobilize naturally occurring selenium from shale-rich soils and carry it into waterways. Efforts to improve irrigation and reduce selenium runoff began changing that picture. By 2019, the river’s selenium load at Whitewater had fallen…
The Economic Times ·
Advnture
The Economic Times
