Formaldehyde Causes More Cancer Than Any Other Toxic Air Pollutant. Little Is Being Done to Curb the Risk.
Formaldehyde Causes More Cancer Than Any Other Toxic Air Pollutant. Little Is Being Done to Curb the Risk.

Formaldehyde Increases Your Cancer Risk No Matter Where you Live

You can look up the risk for US addresses here
Used to work in a hospital pathology department. A dilute version of formaldehyde called formalin was used to preserve and "fix" the tissue for processing. Had no idea it was that bad for you. Good thing I now work in a factory that uses asbestos insulation in the furnaces.
Thing is, if left in a stable state, asbestos is totally fine and a great engineering material. It is only ever a hazard if mechanical work is done to it that creates dust and loose fibers that you could inhale.
Devil's always in the details.