Intermediate Exposure
Exposure to a chemical for a duration of 15-364 days, as specified in the Toxicological Profiles.

Fibrosis
A condition marked by the increase of connective, fibrous tissue.

Suspect material
Building material suspected of containing asbestos, e.g., surfacing material, floor tile, ceiling tile, thermal system insulation, and miscellaneous other materials.

Excursion Limit (EL)
1 Fiber per cubic centimeter averaged over a 30 minute sampling period.

Friable asbestos
Any material containing more than one percent asbestos, and that can be crumbled or reduced to powder by hand pressure. (May include previously non-friable material which becomes broken or damaged by mechanical force.)

Stage 3 Mesothelioma
Stage 3 mesothelioma has spread to the chest wall, food pipe (oesophagus) or lymph nodes on the same side of the chest

Laparotomy
Abdominal exploration is a type of surgery where the abdomen is opened (laparotomy) and explored (exploratory laparotomy) for examination and treatment of problems. Might be used in relation to asbestos disease problems.

Abatement
Removal or controlling release of asbestos fibers. Includes operations and maintenance (O & M), encapsulation, enclosure, and removal.

Stage 4 Mesothelioma
Stage 4 mesothelioma has spread via the bloodstream to other organs in the body such as the liver, brain or bone or to lymph nodes on the other side of the chest

Pleural effusion
A pleural effusion is an accumulation of fluid between the layers of the membrane that lines the lungs and chest cavity.