Asbestos is a hazardous mineral used in various industrial supplies and other products for decades.
Despite its practical properties, asbestos poses significant health risks, particularly when its fibers are inhaled or ingested.
Understanding Asbestos
Asbestos is a naturally occurring mineral comprised of flexible, thread-like fibers.
This mineral is resistant to heat, electricity, and corrosion.
Because of these robust properties, asbestos quickly became popular among industrial and commercial manufacturers during the late 1800s.
Asbestos was mainly used by industries like construction, shipbuilding, automotive, and manufacturing throughout the 20th century.
It was commonly used in insulation, roofing shingles, cement, brake pads, and floor tiles.
Asbestos fibers are microscopic, making them easy to inhale or ingest but difficult for the body to expel.
Once these fibers enter the body, they can become trapped in the tissues of the lungs, stomach, or other organs, leading to serious health issues over time.
Methods of Asbestos Exposure
Exposure to asbestos most commonly occurs in occupational settings where asbestos-containing materials (ACMs) are regularly disturbed, releasing fibers into the air.
Workers in construction, demolition, shipbuilding, and certain manufacturing industries are at higher risk of exposure due to the nature of their work.
Mechanics working on older vehicles are also at risk of occupational asbestos exposure because old brake pads, clutches, and gaskets often contain asbestos.
Handling these components can release dusts of asbestos fibers into the air.
Family members of workers exposed to asbestos can also be at risk.
Asbestos fibers can cling to clothing, hair, and skin, allowing them to be transported into a residential environment where other family members can inhale them.
While less common, asbestos exposure can also occur in communities near asbestos mines or manufacturing plants.
Natural weathering of asbestos-containing rocks or improper disposal of asbestos waste can also lead to environmental contamination.
The Carcinogenic Effects of Asbestos
Asbestos is classified as a known human carcinogen by major health organizations, including the National Cancer Institute, the Occupational Safety and Health Administration (OSHA), and the National Toxicology Program.
The most severe health risks associated with asbestos exposure are cancers.
Inhalation of asbestos commonly leads to developing lung cancer.
Ingestion of inhalation through the mouth of asbestos could lead to the development of various types of gastrointestinal cancers.
Ingested asbestos fibers can lodge in the lining of the stomach, leading to chronic inflammation and, eventually, stomach cancer.
Studies have shown that asbestos-exposed workers have a higher incidence of gastrointestinal tract cancers, including stomach cancer.
The exact mechanism by which asbestos fibers contribute to stomach cancer is not fully understood.
It’s believed that the fibers cause direct damage to DNA in the cells lining the stomach, leading to malignant transformation.
