To obtain additional information on how much asbestos was present at the site, a survey was done at three snow-free areas adjacent to the hut.
Numbers in bold represent the mean number of asbestos fragments determined within three snowfree areas around the hut.
The asbestos around the pendulum apparatus, however, is adhered to the floor and is subject to disruption and shredding as visitors walk around this area.
The longer side walls of the basin were made of asbestos board and were carefully aligned and sealed.
The inclined wall was made of asbestos board hinged to the side wall at a distance of 4.2m from the northern end of the basin.
These fragments of asbestos appear to be continually fractured and broken into minute pieces as people visit the site and walk over the material.
Aromatic hydrocarbons, asbestos, lead, and other potentially toxic materials contaminate the historic sites.
Other samples such as materials possibly containing asbestos, and paint chips are also collected.
