Chemicals that can make people sick have recently been found in fish, crabs and oysters in South Carolina as concerns grow about the threat the toxins pose to food and water across the Palmetto State. The S.C. Department of Health and Environmental Control documented the pollutants, known as forever chemicals, in freshwater fish caught in 18 waterways from the foothills to the coast. In some cases, the pollutants were found at high levels, state data show. All told, more than a dozen species contained forever chemicals, and many fish tested came from some of South Carolina’s...