A recent Los Angeles Times report covers asbestos threats in California. Known to hold some of the largest asbestos deposits in the US, Clear Creek Management Area in San Benito and Fresno counties has been a concern for many years. A popular area for motorcyclists, off-roading and all-terrain vehicle enthusiasts, continued vehicle traffic may be causing toxic airborne asbestos levels.
Asbestos is known to cause rare cancer mesothelioma, a disease specific to abdominal organ lining. Most often found in lung lining, mesothelioma begins to develop after asbestos fibers are inhaled. These fibers instigate a cancerous growth process in affected areas leading to malignant mesothelioma development. Mesothelioma tumors grow in an irregular web like pattern without causing external symptoms. Characterized by a latency period typically ranging from twenty to fifty years, mesothelioma is difficult to diagnose.
Mesothelioma treatments include surgeries, chemotherapy and radiation therapy, most often administered as palliative care. Treatments focus on extending patient life expectancy and raising quality of life. Alternative and more aggressive treatments are available for patients who meet a strict set of criteria. There is no known mesothelioma cure.
Environmental Protection Agency considers the potential for human asbestos exposure in Clear Creek Management Areas to be one of high risk; the area has been closed for several years. In an effort to decide how best to handle this, and other similar asbestos situations, federal government has had US Geological Survey release a map including marked locations of asbestos containing areas throughout California.
Not only could the US public be at risk from natural asbestos deposits, but much of the world could be at risk as well. Many nations continue to knowingly use manufactured asbestos containing materials, despite the knowledge of related health threats. Developing countries specifically have fallen prey to the hard-to-match building properties of asbestos, and continue to import asbestos containing materials for use in building and construction projects. Unfortunately, unlike countries that have banned or heavily regulated asbestos, developing nations use limited, if any, asbestos safety precautions in the workplace.