Sources of exposure

Sources of exposure.

Asbestos minerals are commonly found in soil Some places may have asbestos in large quantities and can be exploited to certain activities related to drilling, such as clay minerals, copper, lead, nickel or iron may be dust asbestos in the air. As a result of asbestos exposure is possible. And the environment in general and work environment that is used in mineral processing.

Use the asbestos industry as a raw material in Thailand, most industries are cement tiles. Industrial brake and clutch. Pipe industry.
Effects on health. Accumulation in the body and the elimination of important factors that cause disease are three types of asbestos.

1 amount of asbestos lung cancer
2 sizes of fibers. (Fiber must be greater than 5 microns in diameter and less than 3 microns, with a length: width> = 3:1).
3 When the durability of fibers in the lungs.

Both fibers are thin, durable fibers that are most harmful, but the fiber is greater than 200 microns long and more than 3 micrometers in diameter are often unable to access the lungs, the air bag. Tend to accumulate in the upper airways. And was eliminated from the body by a drive to the mucus even smaller fibers are less than 5 microns in diameter and less than 2 micrometers, most have been removed by alveolar macrophages.