Unveiling hidden threats: Polycyclic aromatic hydrocarbons pollution in the glacial waters of the Meili Snow Mountains in the southeastern Tibetan Plateau.

ABSTRACT: Polycyclic aromatic hydrocarbons (PAHs) have posed considerable threats to both ecosystems and human health. To explore their characteristics and risks in temperate glacial watersheds, water samples from the Meili Snow Mountains in the southeastern Tibetan Plateau were collected and analyzed. The results revealed that the concentrations of total PAHs (∑PAHs) ranged from 406.5 to 820.9 ng‧L-1, and the mean ∑PAH level was relatively high compared to other global studies. PAHs were characterized by low-molecular-weight congeners, mainly including fluorene, and phenanthrene. Fluorene, phenanthrene, pyrene, and benzo[a]pyrene, were prevalent throughout the Meili Snow Mountains, with concentrations ranging from 164 to 425 ng‧L-1, 23.6 to 201 ng‧L-1, 17.9 to 90.1 ng‧L-1, and 50-117 ng‧L-1, respec

SUBMITTER: Wen X 

PROVIDER: S-EPMC12530526 | biostudies-literature | 2025

REPOSITORIES: biostudies-literature