Presentation on theme: "Increasing Awareness: Asbestos Ancient History, Characteristics, Types, Uses, Health Effects."— Presentation transcript:
Increasing Awareness: Asbestos Ancient History, Characteristics, Types, Uses, Health Effects
Asbestos Definition The word asbestos derives from a Greek word meaning “inextinguishable”
Asbestos definition Either of two incombustible, chemical- resistant, fibrous mineral forms of impure magnesium silicate, used for fireproofing, electrical insulation, building materials, brake linings, and chemical filters.
Brief History First known use: 2,500 B.C. pottery and hut insulation Greeks spun and used in cloth Used for wicks in sacred lamps Pottery Diseases in the 1950s-1960s 1971 Asbestos listed as a hazardous air pollutant
Asbestos-Smoking-Lung Cancer Asbestos exposure=5X greater chance lung cancer Smoking no asbestos exposure=10X greater chance lung cancer Asbestos exposure of Smoker=50X greater chance of lung cancer. Newest figures now say 88X greater chance
“King of Cool” - Steve McQueen Died of Mesothelioma in 1980 at the Age of 50 Exposed to Asbestos from Work/Hobbies Brake Pads on Cars Construction Work Ship Work
What Level of Exposure is Safe or Permissible???????? 0.1 fibers per cc of air 5 f/cc, 1 f/cc, 0.1 f/cc in last 10 years
Crowds gather at Market and Laguna streets to flee the Great Fire. Building at lower center right still survives along Laguna. Almost all others pictured here burned.
The 1906 San Francisco Great Fire as seen from a ferry boat in the Bay.
Closing Thought. Keep Health Effects in Perspective Expected deaths per 100,000 Motor vehicle1,600 Coal mining441 Diagnostic X rays75 Lightning3 Hurricanes3 Asbestos in buildings1
Acknowledgement Created by Larry Hagel, Industrial Hygienist, Kyron Environmental Consulting and Training Formerly with Spokane Public Schools and a member of AASA’s Urban Healthy Schools Coalition Email email@example.com@kyronenvironmental.com AASA is dedicated to healthy school environments, visit http://www.aasa.org/focus/ http://www.aasa.org/focus/