Its both, but depends on what is in trend at the current time. Anything that is "potentially" carcinogenic low or high risk is being targeted. A company I do work for are spending a fortune on reducing sillica dust and have banned the use of mdf. Now they are looking at the thermal insulating materials, such as glass fibre and similar. The thermal insulation upgrade is looking at being implemented next year and this is just one example.
One of the problems this causes is that if people are not educated properly about these things then they often react dependent on what they hear, either scare mongering or ignorance, neither which is any use in tackling the issues appropriately.
Asbestos for example is only dangerous if the fibres are released and breathed in. So in the majority of cases (dependent on the condition and severity) it can be managed and even worked with. Yet because of the scare mongering some people worry they might die if they even come in to contact with it. On the flip side others show their ignorance and are happy to just drill or break material containing asbestos (often without realising) releasing the fibres into the environment potentially subjecting themselves and others to breathing them in.
The thing is, it can take up to 20+ for the symptoms of asbestosis and other related carcinogenic diseases to emerge from breathing in materials the body can't rid. Much like smoking related problems each person reacts differently. Some people will develop cancer from asbestos others won't, even if they have been exposed to similar amounts of fibre inhalant.
I wouldn't be surprised if it becomes mandatory in the near future for trades people to have some sort of awareness training.
But I will reiterate to you good folks, if you haven't done the course I strongly advise you do! It's worth every penny and may potentially save your life and/or those working with you.