So, re the posts above, as I understand it there's an issue with getting tradesmen who may routinely encounter asbestos to take it seriously as (generalising) they tend to be blasé, and reassuring people who may have had a one off exposure which clearly is a much lower risk, but induces panic.
I've copied the below from a post elsewhere which I have found helpful in a similar situation. Its long but Hope it helps you OP...
"Having said that, I had some genuinely false beliefs about asbestos. When I addressed these beliefs, it helped me get the fear under control and stop it from spiralling. I will need to undergo ERP therapy to deal with it properly but at least I got my life back for now.
Pre-emptively: Unless you have been working 10-hour shifts every day surrounded by clouds of asbestos dust you will not develop asbestosis. Documentaries like "the dust at acre mill" show what kind of conditions people who developed this disease were working in.
Firstly: "All it takes is 1 fibre" is a lie. Asbestos occurs naturally in our environment and on average we breathe in around 5000 fibres each day. The idea that you can live completely asbestos free is not scientifically possible. In EU law, for example, the occupational asbestos limit is 0.01 fibres/cm³. Notice that number is not 0. There is always a background level of asbestos fibres. Sometimes it will rise above the average, sometimes it will drop below. Say a construction worker really was covered in asbestos dust and brushed past you, the amount you would get exposed to on the few occasions in your life that happens would never be enough to harm you. The level of exposure simply wouldn't rise very high above the background level and it wouldn't rise for long enough.
Sometimes it's easy to forget just how reckless people were with the stuff in the past. The scary messages were designed to make people aware of the danger, change people's attitudes and get them to take sensible precautions. Asbestos is bad; we shouldn't saw it in a garage with no mask on but it also isn't plutonium; we shouldn't worry about coming into contact with tiny amounts.
Secondly: Previous generations had much greater exposure to asbestos than ours and they are not dying en masse. A common memory amongst boomers here in the UK is how the heatproof mats in high school chemistry lessons were made of asbestos and had frayed edges. Also, in DIY and construction, people used to drill into artex (popcorn) ceilings and walls and cut asbestos-cement roofing to size + bolt it down without PPE or any real precautions. Asbestos used to be put in all sorts of household products. People didn't know it was dangerous and didn't take care when handling it. Bear this in mind when reading the next point.
Thirdly: The rate of asbestos disease is tiny.
Consider this: Here in the UK we have a higher rate of asbestos disease than average due to our heavy use of amosite (brown asbestos), but the disease rate is still very low. To be specific, I'm talking 2,379 mesothelioma cases each year out of a population of almost 70 million (67,330,000) The ratio of men to women in these statistics shows you that most cases are the result of occupational exposure (i.e. males working in professions that came into contact with a lot of asbestos). In 2021, out of a total of 2,379 mesothelioma cases, 1,945 were males and 434 were females. The number who caught it from casual exposure is tiny. And just to reiterate... all of these statistics are hangovers from a time when asbestos regulation didn't really exist.
About contamination: I struggle a lot with the idea of contamination myself and things being "ruined" as a result of asbestos contamination. But it is important to remember that the fear is not rooted in reality.
If something gets contaminated with asbestos fibres, it is not like that forever. From the point of exposure, the amount of contamination continually reduces. The time taken for the fibres to disappear entirely may be as little as a few hours up to a few weeks. In any case, the danger from asbestos is not in contaminated items such as clothes, where it would be very difficult for an individual fibre to travel upwards and into your mouth as you move around. The danger comes from disturbing an asbestos-containing source and releasing fibres into the air where they can be breathed in.
Asbestos is such a tricky thing to deal with in OCD but I hope this helps a bit."