For chemist Kris Hansen, 3M was a family affair; her father was a creator of the company’s N95 face masks.
Yet, after she found 3M’s forever chemicals in human blood, the company repeatedly doubted her work and stopped her research on the chemicals.
(Published May 2024)
Decades ago, Kris Hansen showed 3M that its PFAS chemicals were in people’s bodies. Her bosses halted her work. As the EPA now forces the removal of the chemicals from drinking water, she wrestles wit...
