PFAS and other emerging contaminants found in São Paulo groundwater

This study detected various emerging contaminants in shallow groundwater, including PFAS at concentrations from 4.8 to 45.7 ng/L, with PFOS and PFOA being the most common. Pesticides, pharmaceuticals, hormones, and industrial compounds were also quantified.

Researchers investigated emerging contaminants in shallow groundwater from nonindustrial urban areas of São Paulo city, Brazil, focusing on sites potentially impacted by domestic wastewater leakage. They collected 20 samples across both dry and wet seasons.

The abstract focuses on the study's findings regarding contaminant presence; it does not provide personal how-to steps for readers.

This study analyzed 20 shallow groundwater samples from São Paulo city, Brazil, collected across an entire hydrological cycle. While concentrations were considered background levels from diffuse sources, the authors emphasize the need for more comprehensive studies to assess the occurrence, sources, and potential health impacts of these emerging contaminants.