The effect of past exposure to asbestos on natural killer (NK) cell number and activity is uncertain. We measured NK cell number and activity in 1052 retired asbestos workers without symptomatic lung disease, lung cancer, or mesothelioma and with a long latency period from exposure; results were compared with those for 100 healthy age-matched controls.

Asbestos is not visibly noticeable. Product advertising, literature, containers such as bags, receipts and home improvement records sometimes can tell that a product does or does not contain asbestos. Otherwise, examining the types of products that were known to contain asbestos can help decide if a health risk exists. All materials that potentially contain asbestos and are damaged in any way should be considered hazardous. Asbestos is dangerous when it is airborne and small enough to easily be breathed in. Do not disturb or try to remove the material yourself.

Asbestos was once a commonly used building material because it is not affected by heat or chemicals and does not conduct electricity. Now, however, it is considered a serious indoor air pollutant with links to such serious respiratory diseases as asbestosis, mesothelioma, and lung cancer. Asbestos was used in many products that were installed in Illinois' schools and commercial buildings for decades. 

When attempting to perform a do-it-yourself asbestos abatement project, there are many laws and regulations that need to be followed at the state and federal level. There are many laws that can potentially be broken if the proper procedures and guidelines are not followed through the abatement process. Unfortunately, current federal regulations have made it nearly impossible for do-it-yourselfers. Harsh policies force people who wish to remove the asbestos by themselves to hire a professional to lessen legal responsibility for their actions.

Asbestos symptoms are indicators of the serious adverse health problems that are caused by dangerous levels of asbestos exposure. Over one million people are exposed to the dangerous of asbestos exposure every year in the work place and should be aware of asbestos symptoms that may indicate serious underlying health problems. People who work, or have worked, in the shipyard, factory, railroad, construction, automobile, and building industries in the last 60 years may be susceptible to developing asbestos symptoms.

Asbestos is a group of fibrous minerals that were once commonly used in construction and industrial materials. The high tensile strength and extreme resistance to heat and chemicals were highly sought in industrial projects, and asbestos provided that in many capacities. Previous studies concluded that asbestos was carcinogenic, leading to the Environmental Protection Agency's ban of asbestos in 1989, though the government began regulating its use in the 1970s. Although asbestos is no longer used in the same capacity as it once was, it may still remain in older homes and buildings.

Symptoms of asbestos exposure takes anywhere in between 15 to 40 years to surface. Even though the use of asbestos has reduced drastically in the recent past, asbestos related symptoms in those affected will keep showing up over the coming years.

Asbestos is a naturally occurring mineral that was used commonly in buildings for insulation.  Asbestos fibers are exceptionally strong, flexible and are resistant to heat and chemicals degradation.  Asbestos is commonly found in ceiling tiles, flooring and pipes among other things.  It is estimated that 30 million tons of asbestos was utilized in the United States in about 3,000 different products in the automotive, textile, construction, and electronics industries.  

If you suspect that asbestos is present in your home or building, you will need to have professional testing performed in order to confirm such suspicions. Asbestos fibers are invisible to the unaided eye; there is no way to know if they are present by simply examining an area.

Where Asbestos May Exist In Your Home