In 2025, a study reported PFAS levels in the Rio Grande rose 11.5-fold downstream of Albuquerque, from 4 to 46 ng/L in 2020–24 samples

A 2025 study found average PFAS concentrations in the Rio Grande near Albuquerque rose from 4 to 46 nanograms per liter between 2020 and 2024. Stormflow was linked to a 58% increase, while researchers identified rainfall, urban runoff, and wastewater as potential influences on contamination. (Wikimedia Commons)

A 2025 study published in Water Environment Research found that per- and polyfluoroalkyl substance levels in the Rio Grande flowing through Albuquerque, New Mexico, increased tenfold. The average concentration rose from 4 to 46 nanograms per liter (ng/L), an approximately 11.5-fold increase. A 2025 study found average PFAS concentrations in the Rio Grande near Albuquerque … Read more