New research by Yale has found an association between exposure to chemicals commonly used in firefighting and incidence of a brain tumor called a glioma in firefights, suggesting that the cancer may have an environmental cause.

Firefighters might face a higher risk of brain cancers caused by exposure to chemicals in fire extinguishers, a new small-scale study says. Veteran firefighters appear to have a higher risk of brain tumors called gliomas,

In a study comparing the glioma tumors of firefighters and non-fighters, researchers found a mutational signature tied to exposure to haloalkanes, which are used in flame retardants, fire extinguishers,