Dive summary:

• Fire retardants used in many products are good on them but less so in human bodies.
• In a study in eight Boston office buildings, researchers found widely varying levels of polybrominated diphenyl ethers (PBDEs) – toxic components of fire retardants in carpets and many other office materials – on the hands and in the blood of workers.
• It turns out that frequent hand washing is good way to keep the chemicals picked up in the office from accumulating inside the body.

From the article:

Offices can be a significant source of exposure to brominated flame retardants, according to a study in Environmental Health Perspectives. ...