BACKGROUND INFORMATION n n WHAT IS ASBESTOS? IT IS: – A NATURALLY OCCURING MINERAL – FOUND THROUGHOUT THE WORLD
BACKGROUND INFORMATION n HOW IS ASBESTOS PRODUCED? – STRIP/OPEN MINING n HOW DOES IT GET ITS NAME? – GREEK ADJECTIVE • INEXTINGUISHABLE – GREEK MIRACLE MINERAL
BACKGROUND INFORMATION n WHERE IS ASBESTOS PRODUCED? – – FORMER SOVIET UNION CANADA SOUTH AFRICA LIMITED IN USA
BACKGROUND INFORMATION n WHO USES ASBESTOS NOW? – – EUROPEAN, ASIAN COUNTRIES CANADA AND MEXICO SOUTH AMERICA UNITED STATES • NO CURRENT BAN • ONLY A BAN ON VISIBLE EMMISSIONS • REGULATORY IMPLICATIONS LIMIT USE
BACKGROUND INFORMATION n GROUPS OF ASBESTOS – SERPENTINE • SHEET/LAYERED • CHRISOTILE (95%) – AMPHIBOLE • • • CHAIN LIKE AMOSITE CROCIDOLITE ANTHOPHYLLITE TREMOLITE ACTINOLITE
Amphibole
Serpentine
BACKGROUND INFORMATION n FRIABLE VS. NON-FRIABLE – FRIABLE • CRUMBLED BY HAND PRESSURE • SANDED, GROUND • ABILITY TO BE AIRBORNE – NON-FRIABLE • HARD/ROCK LIKE
Friable Non-Friable
BACKGROUND INFORMATION n CATEGORIES OF ACBM/PACM – SURFACING • SPRAY/TROWLED – THERMAL SYSTEM • INHIBIT HEAT TRANSFER – MISCELLANEOUS • ANY OTHER MATERIAL
BACKGROUND INFORMATION n PROPERTIES OF ASBESTOS – – – FIRE RESISTANT THERMAL QUALITIES ACOUSTICAL PROPERTIES ELECTRICAL INSULATOR TENSILE STRENGTH CHEMICALLY REST
BACKGROUND INFORMATION n COMMON USES OF ASBESTOS – – – – PIPE INSULATION BOILER BREECH/LAGGING BOILER DOOR FIRE PROOFING DEC/ACOUSTICAL CEILING TILE ROOFING ELECTRICAL INSULATION
HEALTH EFFECTS n HARMFUL PROPERTIES – SIZE OF FIBER – DURABILITY • FIBERGLASS 2 -3 YEARS • ASBESTOS >100 YEARS – SHAPE OF FIBER – BODIES ABILITY TO BREAK DOWN – NO PROOF ON DIFFERENT TOXICITY
HEALTH EFFECTS n MAN-MADE MATERIALS – FIBERGLASS n ROUTES OF ENTRY – INHALATION – INGESTION
HEALTH EFFECTS n RESPIRATORY SYSTEM – NATURAL DEFENSE • • • NASAL HAIRS MUCUS SILIVA CILIA TRACHEA PRIMARY BRONCHI – DEEP LUNG • ALVEOLI • EXCHANGE OF GASES
ASBESTOS RELATED DISEASES n ASBESTOSIS – LUNG DISEASE CALLED ASBESTOSIS DIAGNOSED IN 1900 – SCARING OR FIBROSIS OF THE LUNG TISSUE • IMPAIRS ELASTICITY RESTRICTS O 2 INTAKE – LATENCY PERIOD: 15 -30 YEARS – IRREVERSIBLE WITH NO CURE
ASBESTOS RELATED DISEASES n LUNG CANCER – MALIGNANT TUMOR OF THE BRONCHI COVERING – LATENCY PERIOD: 20 -30 YEARS
ASBESTOS RELATED DISEASES n MESOTHELIOMA – CANCER OF THE MESOTHELIUM • LINING OF CHEST/ABDOMEN – AT TIME OF DIAGNOSES USUALLY FATAL – NO DOSE RESPONSE EFFECT – LANTENCY PERIOD: 30 -40 YEARS n OTHER DISEASES
HEALTH EFFECTS – SYNERGISTIC RELATIONSHIP BETWEEN ASBESTOS AND SMOKING – 20 CIGARETTES/DAY – 10 X FOR LUNG CANCER • ASBESTOS ONLY – 5 X FOR LUNG CANCER • CIGARETTES + ASBESTOS 90 X GREATER
REGULATIONS n AHERA (For all K-12 Public and Private) – INSPECTION – REINSPECTION – SAMPLING • ANALYSIS – – ASSESSMENT CATEGORIES TRAINING MANAGEMENT PLAN
REGULATIONS n DEPARTMENT OF HEALTH AND FAMILY SERVICES – DHFS – STATE EPA – WORKER CERTIFICATION n DEPARTMENT OF COMMERCE
OPERATIONS & MAINTENANCE PROGRAM n PURPOSE – MAINTAIN ACM NON-FRIABLE – RESPOND TO DAMAGED ACM n MAJOR COMPONENTS – DECON/CLEANING – GENERAL MAINT/CLEANING
OPERATIONS & MAINTENANCE PROGRAM n n EMERGENCY RESPONSE PROCEDURES PERIODIC SURVEILLANCE REINSPECTION RECORD KEEPING – WASTE MANIFEST – O&M FORMS
OPERATIONS & MAINTENANCE PROGRAM • REFER TO INSP/MGMT PLAN/SURV. • IF IN DOUBT - SAMPLE • REFER TO D. P. n O&M vs. PLANNED ABATEMENT – INTENT – BLUEPRINTS – QUANTITY • ONE GLOVEBAG
OPERATIONS & MAINTENANCE PROGRAM – REMOVE ONLY WHAT IS DAMAGED – FLOOR TILE – EXAMPLES • COIL REPLACEMENT • UNIVENT LEAK • ROOF LEAK
ASBESTOS REMOVAL n PLANNED ABATEMENT: – STATE NOTIFICATION – NEGATIVE PRESSURE CONTAINMENT – DECONTAMINATION SUITE – CERTIFIED WORKERS – PROPER TECHNIQUES – CLEARANCE AIR TESTING
OPERATIONS & MAINTENANCE PROGRAM n EMERGENCY RESPONSE – MINOR RELEASE • < 3 FT 2 OR 3 LF • IN-HOUSE – MAJOR RELEASE • > 3 FT 2 OR 3 LF • PROJECT DESIGN/RESPONSE ACTION – ISOLATE AREA – SHUT DOWN HVAC – CALL EMC
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