Bayer AG was told by a jury to pay $100 million to four people at a Seattle-area school who said their exposure at the facility to toxic chemicals made by the company’s Monsanto unit caused brain damage and other injuries.

A Washington state jury on Tuesday said Bayer must pay $100 million to four people who say they were sickened by exposure to toxic chemicals known as PCBs made by the company's predecessor Monsanto that were used in light fixtures at a Seattle-area school,

Bayer AG’s Monsanto unit stopped making toxic PCBs a half century ago, but the legal fallout lingers even as many of the building materials made with the chemicals are no longer used in US homes, schools and factories.