Increasing Awarness of Asbestos Cancer Mesothelioma
December 4th, 2008 | by Clare |
The name Mesothelioma is derived from mesothelium, which is the membrane that covers and protects most of the internal organs of the body. Asbestos Cancer Mesothelioma is caused by asbestos exposure. Asbestos is a substance found naturally. It is made of strong flexible fibres. It was used extensively in industry because the fibres are not affected by heat or chemicals and a poor conductor of electricity. It is estimated that over 5,000 products have or had asbestos in them.
Of the six types of asbestos, only four are used commercially. These are chrysotile, crocidolite, amosite and anthrophyllite. Of these, crysotile or white asbestos accounts for 99% used in USA. In it natural state or well contained and maintained in products, asbestos do not pose a real hazard. It is when asbestos is broken down and fibres are released that there is concern.
Asbestos fibres are very thin and sharp. The fibre is 2,000 times thinner than a human hair. It measures under 0.3 microns or one millionth of a millimetre in diameter and five microns in length. It is not visible with the naked eye or through a microscope.
When released, the fibres remain in the atmosphere for a long time and can be carried great distances. When the fibres are inhaled, they stick to the lung tissue and are not expelled by breathing out or coughing. Some remain in the lungs, others gravitate into the pleural lining.
Asbestos exposure can lead to disease and develops over a long period of time. Asbestos related diseases are asbestosis, pleural plaques and lung cancers. The lung cancer can be either cancer of the lung itself or mesothelioma, a cancer of the lung lining. These cancers can take between 20 and 50 years to develop.
Nine Eleven
When the Twin Tower collapsed, there were 400 tons of asbestos in the structure. The toxic cloud that hung over Manhattan, contained high level of asbestos. It is estimated that over 100,000 people suffered asbestos exposure. The greatest exposure was amongst first responders. Deborah Reeve was the first to die from asbestos related disease after 9/11. She was a first responder and paramedic. She died in March 2005 from mesothelioma. This concerned experts because mesothelioma takes a very long time to develop. They concluded that her exposure must have been excessive.
A study result showed that 70% of recovery and rescue workers who were active during and after the World Trade Centre collapse had some form of respiratory problem. A six year follow up study showed that sufferers with respiratory problems continue to have the same ailments. “In the six years since the attacks,” Nadler said, “We have accumulated a mountain of evidence that thousands of those exposed are suffering from chronic respiratory disease and, increasingly, a variety of rare cancers.”
Hopefully, as experts predict, within the next few years asbestos related diseases will peak and the annual new cases will drop. If not, could it be a sleeping dragon about to wake up?
More information on Asbestos related disease can be found here Mesothelioma Asbestos Exposure