This information should be taken seriously, especially with larger breeders that use this stuff a lot.
I stop using the stuff years ago when it was rumoured hazardous, but now it’s official.
The contaminant is (amiante amphibolique) sorry don’t know the English name, its responsible for numerous lung cancer cases, both in humans and animals. Even limited exposure can lead to health hazard, sometime 10 years after exposure.
Health Canada suggest seeing a doctor if you think your at risk.
Ps my wife’s father died from being exposed to this while working in the mines, his cancer developed 18 years after exposure.
Rgds


