n what is asbestos? n it is: –a naturally occuring mineral –found throughout the world...
TRANSCRIPT
WHAT IS ASBESTOS? IT IS:
– A NATURALLY OCCURING MINERAL– FOUND THROUGHOUT THE WORLD
BACKGROUND INFORMATION
BACKGROUND INFORMATION
HOW IS ASBESTOS PRODUCED?– STRIP/OPEN MINING
HOW DOES IT GET ITS NAME?– GREEK ADJECTIVE-
• INEXTINGUISHABLE
– GREEK MIRACLE MINERAL
WHERE IS ASBESTOS PRODUCED?– FORMER SOVIET UNION
– CANADA
– SOUTH AFRICA
– LIMITED IN USA
BACKGROUND INFORMATION
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
BACKGROUND INFORMATION
GROUPS OF ASBESTOS– SERPENTINE
• SHEET/LAYERED• CHRISOTILE (95%)
– AMPHIBOLE• CHAIN LIKE• AMOSITE• CROCIDOLITE• ANTHOPHYLLITE• TREMOLITE• ACTINOLITE
Amphibole
Serpentine
BACKGROUND INFORMATION
FRIABLE VS. NON-FRIABLE– FRIABLE
• CRUMBLED BY HAND PRESSURE• SANDED,GROUND• ABILITY TO BE AIRBORNE
– NON-FRIABLE• HARD/ROCK LIKE
Non-Friable
Friable
BACKGROUND INFORMATION
CATEGORIES OF ACBM/PACM– SURFACING
• SPRAY/TROWLED
– THERMAL SYSTEM• INHIBIT HEAT TRANSFER
– MISCELLANEOUS• ANY OTHER MATERIAL
BACKGROUND INFORMATION
PROPERTIES OF ASBESTOS– FIRE RESISTANT– THERMAL QUALITIES– ACOUSTICAL PROPERTIES– ELECTRICAL INSULATOR– TENSILE STRENGTH– CHEMICALLY REST
BACKGROUND INFORMATION COMMON USES OF ASBESTOS
– PIPE INSULATION– BOILER BREECH/LAGGING– BOILER DOOR– FIRE PROOFING– DEC/ACOUSTICAL – CEILING TILE– ROOFING– ELECTRICAL INSULATION
HEALTH EFFECTS
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
MAN-MADE MATERIALS– FIBERGLASS
ROUTES OF ENTRY– INHALATION– INGESTION
HEALTH EFFECTS
RESPIRATORY SYSTEM– NATURAL DEFENSE
• NASAL HAIRS
• MUCUS
• SILIVA
• CILIA
• TRACHEA
• PRIMARY BRONCHI
– DEEP LUNG• ALVEOLI
• EXCHANGE OF GASES
ASBESTOS RELATED DISEASES
ASBESTOSIS– LUNG DISEASE CALLED ASBESTOSIS
DIAGNOSED IN 1900– SCARING OR FIBROSIS OF THE LUNG TISSUE
• IMPAIRS ELASTICITY RESTRICTS O2 INTAKE
– LATENCY PERIOD:15-30 YEARS– IRREVERSIBLE WITH NO CURE
ASBESTOS RELATED DISEASES
LUNG CANCER– MALIGNANT TUMOR OF THE
BRONCHI COVERING
– LATENCY PERIOD: 20-30 YEARS
ASBESTOS RELATED DISEASES
MESOTHELIOMA– CANCER OF THE MESOTHELIUM
• LINING OF CHEST/ABDOMEN
– AT TIME OF DIAGNOSES USUALLY FATAL– NO DOSE RESPONSE EFFECT– LANTENCY PERIOD: 30-40 YEARS
OTHER DISEASES
HEALTH EFFECTS
– SYNERGISTIC RELATIONSHIP BETWEEN ASBESTOS AND SMOKING
– 20 CIGARETTES/DAY– 10X FOR LUNG CANCER
• ASBESTOS ONLY– 5X FOR LUNG CANCER
• CIGARETTES + ASBESTOS 90X GREATER
REGULATIONS AHERA (For all K-12 Public and Private)
– INSPECTION– REINSPECTION– SAMPLING
• ANALYSIS
– ASSESSMENT– ASSESSMENT CATEGORIES– TRAINING– MANAGEMENT PLAN
REGULATIONS
DEPARTMENT OF HEALTH AND FAMILY SERVICES– DHFS– STATE EPA– WORKER CERTIFICATION
DEPARTMENT OF COMMERCE
OPERATIONS & MAINTENANCE PROGRAM
PURPOSE– MAINTAIN ACM NON-FRIABLE– RESPOND TO DAMAGED ACM
MAJOR COMPONENTS– DECON/CLEANING– GENERAL MAINT/CLEANING
OPERATIONS & MAINTENANCE PROGRAM
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.
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
PLANNED ABATEMENT:– STATE NOTIFICATION
– NEGATIVE PRESSURE CONTAINMENT
– DECONTAMINATION SUITE
– CERTIFIED WORKERS
– PROPER TECHNIQUES
– CLEARANCE AIR TESTING
OPERATIONS & MAINTENANCE PROGRAM
EMERGENCY RESPONSE– MINOR RELEASE
• < 3 FT2 OR 3 LF• IN-HOUSE
– MAJOR RELEASE• > 3FT2 OR 3LF• PROJECT DESIGN/RESPONSE ACTION
– ISOLATE AREA– SHUT DOWN HVAC– CALL EMC