This year’s Winter Olympics was the first to deploy the fluoro wax test, which is based on Fourier transform infrared spectroscopy to detect carbon-fluorine signatures.

Testing shows an herbicide product used on public lands contains PFAS, a group of chemicals with high persistence and health risks.

Many towns cannot afford the millions of dollars needed to upgrade their water systems. That means ratepayers could end up footing the bill.

Nearly 1,300 US retail stores and restaurants are set to close by the end of 2026. Major chains, including Wendy's and Macy's, are citing efficiency as the reason behind the closures. Saks is one of ...