Meso

Meso
Mesothelioma

Jumat, 11 Juli 2008

Asbestos Violations

A Texas contractor working on the demolition of base housing at New Mexico’s former White Sands Missile Range will most likely be cited by the state Environment Department for failure to notify them before demolishing buildings that contained dangerous asbestos.

An article in New Mexico Business Weekly states that Border Demolition and Environmental Inc. was hired by White Sands to clean up asbestos waste uncovered by another contractor at the former base in the southern portion of New Mexico. However, the company failed to let the New Mexico Environment Department know that the work was taking place and failed to account for the whereabouts of several bags of asbestos waste from the project.

According to Jim Norton, division director of the Environmental Protection Division, the managers at White Sands and the contractors from Border Demolition were aware of the presence of concrete asbestos pipe at the project site but failed to inform the department of its presence. Such notification is required by state law and the state would need to give its nod of approval before demolition could begin at any site that contains asbestos, Norton explains.

Border Demolition and Environmental may receive a fine of up to $15,000 per day for failure to file the proper required notice and up to $5,000 per day for solid waste violations for failing to account for the missing bags of asbestos. White Sands and other contractors on the project also could face enforcement actions, the article explains. (Original article from http://www.maacenter.org)

Selasa, 01 Juli 2008

Risk factors Of Mesothelioma

Working with asbestos is the major risk factor for mesothelioma. Mesothelioma is now known to occur in those who are genetically pre-disposed to it. A history of asbestos exposure exists in almost all cases. However, mesothelioma has been reported in some individuals without any known exposure to asbestos. In rare cases, mesothelioma has also been associated with irradiation, intrapleural thorium dioxide (Thorotrast), and inhalation of other fibrous silicates, such as erionite.

Asbestos is the name of a group of minerals that occur naturally as masses of strong, flexible fibers that can be separated into thin threads and woven. Asbestos has been widely used in many industrial products, including cement, brake linings, roof shingles, flooring products, textiles, and insulation. If tiny asbestos particles float in the air, especially during the manufacturing process, they may be inhaled or swallowed, and can cause serious health problems. In addition to mesothelioma, exposure to asbestos increases the risk of lung cancer, asbestosis (a noncancerous, chronic lung ailment), and other cancers, such as those of the larynx and kidney.

The combination of smoking and asbestos exposure significantly increases a person's risk of developing cancer of the airways (lung cancer, bronchial carcinoma). The Kent brand of cigarettes used asbestos in its filters for the first few years of production in the 1950s and some cases of mesothelioma have resulted. Smoking modern cigarettes does not appear to increase the risk of mesothelioma.

Some studies suggest that simian virus 40 (SV40) may act as a cofactor in the development of mesothelioma

Signs and symptoms

Symptoms of mesothelioma may not appear until 20 to 50 years after exposure to asbestos. Shortness of breath, cough, and pain in the chest due to an accumulation of fluid in the pleural space are often symptoms of pleural mesothelioma.

Symptoms of peritoneal mesothelioma include weight loss and cachexia, abdominal swelling and pain due to ascites (a buildup of fluid in the abdominal cavity). Other symptoms of peritoneal mesothelioma may include bowel obstruction, blood clotting abnormalities, anemia, and fever. If the cancer has spread beyond the mesothelium to other parts of the body, symptoms may include pain, trouble swallowing, or swelling of the neck or face.

These symptoms may be caused by mesothelioma or by other, less serious conditions.

Mesothelioma that affects the pleura can cause these signs and symptoms:

* chest wall pain
* pleural effusion, or fluid surrounding the lung
* shortness of breath
* fatigue or anemia
* wheezing, hoarseness, or cough
* blood in the sputum (fluid) coughed up (hemoptysis)

In severe cases, the person may have many tumor masses. The individual may develop a pneumothorax, or collapse of the lung. The disease may metastasize, or spread, to other parts of the body.

Tumors that affect the abdominal cavity often do not cause symptoms until they are at a late stage. Symptoms include:

* abdominal pain
* ascites, or an abnormal buildup of fluid in the abdomen
* a mass in the abdomen
* problems with bowel function
* weight loss

In severe cases of the disease, the following signs and symptoms may be present:

* blood clots in the veins, which may cause thrombophlebitis
* disseminated intravascular coagulation, a disorder causing severe bleeding in many body organs
* jaundice, or yellowing of the eyes and skin
* low blood sugar level
* pleural effusion
* pulmonary emboli, or blood clots in the arteries of the lungs
* severe ascites

A mesothelioma does not usually spread to the bone, brain, or adrenal glands. Pleural tumors are usually found only on one side of the lungs.