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CMC Asbestos Surveys: Asbestos Glossary - L

Latest Asbestos News

HSL investigation refutes asbestos claims over safe cement

The Health and Safety Laboratory (HSL) have investigated claims that chrysotile in asbestos cement changes into a non-asbestos fibrous material called Casitile. The claims also suggested that this process is 100% efficient and no chrysotile asbestos remains in the matrix and no release of airborne chrysotile fibres can occur.

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Latency period
The time elapsed from exposure to a carcinogen to the onset of disease. The latency period between exposure to asbestos to development of mesothelioma can last from 10 to 40 years.

Leak-tight
Solids or liquids cannot escape or spill out. It also means dust-tight.

Lobes
Divisions of the lung, there being three lobes on the right and two on the left.

Local Exhaust Ventilation
The mechanical removal of air contaminants from a point of operation.

Logbook
An official record of all activities which occurred during a removal project.

Lung cancer
Lung cancer is a malignant tumour or tumours that obstruct the airways. Although the relationship between lung cancer and asbestos is uncertain, it is widely accepted that lung tumours are seen in those who were heavily exposed to asbestos and who were also smokers.

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