Friday, July 10, 2009

Is Mesothelioma a sleeping dragon?

Summary:
Asbestos related disease such as mesothelioma is rare but annually new cases increase in USA and Europe. They are slow to develop and can take up to fifty years after asbestos exposure. For mesothelioma the survival rate depends on the stage the disease is diagnosed and treatment commenced.

Article Body:
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.
A recent article in a UK Newspaper highlighted the case of a Hospital Consultant who developed mesothelioma. He cannot recall any exposure to asbestos. It may well be that he was inadvertently exposed to asbestos without his knowledge i.e. such as living in the vicinity of a factory that leaked asbestos into the atmosphere.

Professor Peto has shown that new cases of mesothelioma will continue to increase in the early part of the twenty first century. He also said, “Every single person in the UK has asbestos in their lungs. It is the level of exposure that is important.”

We also know that people who has a history of asbestos exposure has a greater risk of lung cancer if they smoked. In a survey in 1992, 2602 individuals with lung cancer were interviewed. One in eight was exposed to asbestos and of these a third still smoked. A US study suggested that non-smokers exposed to asbestos have a five times greater risk of lung cancer. If they smoked, then the risk increased by a factor of 11. Smoking and asbestos exposure increases the risk of developing lung cancer to 52 times that of the general population. 

At present no one knows how many lung cancers are due to asbestos exposure because of the long latency period and that cigarette smoking remains the major cause. Mesothelioma, however, is caused by asbestos exposure and this has been the basis of numerous high value legal claims.

As for the future, in the USA and Europe, asbestos related diseases will gradually increase to a peak. Of concern, however, are areas of conflict. In the Middle East, when a building was bombed, or when numerous buildings were bombed during the invasion of Iraq, do we have any idea how much asbestos was released into the atmosphere?

We are, however, certain that during the 9/11 disaster, asbestos fibres were released. 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?

Asbestos Home Testing- Prevention Is Better Than Cure

Asbestos home testing is a process of testing the presence of asbestos in homes in general and building materials in particular. Asbestos is a mineral fiber resistant to heat, chemicals, and electricity. Building and insulation industries made widespread use of asbestos in their operations. Asbestos is commonly used in your homes in one form or the other. Some building materials that may contain asbestos materials are vinyl floor tiles; patching compounds textured paints, furnace and stovepipe, insulation, stove door gaskets, roofing shingles, cement, and siding material.

Asbestos was most commonly used until early 1970s in various home appliances, such as toasters, clothes dryers, and hair dryers. Now, government has laid norms for the use of asbestos and its exposure. Asbestos home testing is essential because exposure to and inhalation of Asbestos fibers is dangerous to health. Friable asbestos materials in homes, industries and appliances could lead to serious asbestos related diseases. Following people are more vulnerable to Asbestos-related diseases:

 Works in industries and mines
 Construct Buildings
 Make ceilings
 Perform Ceiling insulation

Apart from these persons all other persons who live in houses having asbestos contaminated building material or are involved in use or repair of appliances and products that contain asbestos can also contact asbestos diseases. This makes asbestos home testing a necessary process for all homes that are built before 1980s and all the people who are using appliances and or products that could contain asbestos materials.

Health Hazards Of Asbestos

Undamaged Asbestos cannot cause any health hazards. When asbestos is exposed to hitting, rubbing, or extreme vibration, its wear and tear occurs and shows signs of abrasion. Asbestos is only harmful, when damaged, and its fiber gets mixed with air. You can determine the status and stability of asbestos products by asbestos home testing. Asbestos home testing is compulsory because asbestos exposure could lead to fatal diseases such as asbestosis, lung cancer and mesothelioma cancers. Asbestos may harm you only if you inhale asbestos fiber. There are no safe levels of asbestos exposure and even short-term exposure to asbestos creates a possibility of your catching any disease caused by asbestos.

Removing Asbestos From Home

It is not possible to perform asbestos testing in home. You need qualified professional to test the presence of asbestos in your home. Asbestos abatement is the process of determining the status of asbestos material and taking corrective measures for preventing risk of asbestos exposure. It is not necessary that you have to remove all the asbestos material from your home. You can also opt for economic measures such as enclosures and encapsulation for preventing the risk of asbestos exposure even without removing the Asbestos Containing Materials.