Spatial and Temporal Dynamics of Chemical and Microbial Contamination in Nonurban Floodwaters.

ABSTRACT: During major flood events, waterborne contaminants are relatively poorly characterized. This is due to logistical difficulties associated with obtaining water samples in potentially dangerous flood conditions. Herein, we report analyses of water samples from a large, flooded landscape in Victoria, Australia, during a major flood event. We collected 83 samples from seven rivers and 18 river locations as far apart as 520 km. The sampling campaign covered a 26-day window, with 3 samples taken weekly from each site. Floodwater samples were analyzed for 778 contaminants and 544 microbial species were identified using eDNA. Our study shows that 85 contaminants were detected in floodwaters. Fungicides, phthalates, plant macronutrients, metal(loid)s and PPCPs were better explained by land uses, wh

SUBMITTER: Saaristo M 

PROVIDER: S-EPMC11636212 | biostudies-literature | 2024 Dec

REPOSITORIES: biostudies-literature