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Carcinogens in a Cig!Carcinogens in a Cig!• Acetaldehyde: 980
mcg• Arsenic: Unknown• Formaldehyde:
Unknown• Lead: Unknown• Nicotine: 14 mcg• Vinyl Chloride: 27
nanograms• Benzene: 5.9-75 mcg• Carbon Monoxide
Radon •NOT anthropogenic (human caused)•Colorless, odorless gas that enters homes b/c of radioactive decay of Uranium 238 in earth’s rocks
• Seeps through foundation of houses
Uranium RockUranium Rock
Radon and HealthRadon and Health• A carcinogen
• 2nd most common cause of lung cancer (21,000 deaths/yr, behind smoking)
• Test Kits Available for $10
Remediation of RadonRemediation of Radon
• Suction systems underneath house• Sealing cracks in foundation walls and
floors• Increased ventilation in house
MoldMold
• A fungus that eats organic matter (wood, cardboard, drywall)
• Reproduces by releasing spores into air.
• Loves moist, humid conditions.
Mold SporesMold Spores
Mold and HealthMold and Health
• Triggers immune systems responses: allergies.
• Mold spores may germinate in lungs causing lung lesions.
• Vomiting
Asbestos• Natural mineral
doesn’t burn, conduct heat or electricity
• Used in electrical insulation, roofing and car brakes
•Asbestos Hazard and Emergency Control Act of 1986: required all use of asbestos to be phased out by 1997
Asbestos and HealthAsbestos and Health • CCan separate in an separate in
long thin fibers long thin fibers enterenterss lungs lungs– ccancer , ancer ,
mesothelioma if inhaled in high concentrations concentrations
–AsbestosisAsbestosis: acid : acid tries to eat away tries to eat away fiber; causes fiber; causes scarring of lungs.scarring of lungs.
Formaldehyde: HFormaldehyde: H22COCO
• Caused from incomplete combustion of C containing materials.
• Used as a preservative, in film processing, making glues for plywood and carpeting (construction materials).
• Products decay indoors, formaldehyde is released.
Formaldehyde and HealthFormaldehyde and Health• Common in houses• Watery eyes,
irritates mucous membranes, headaches, diff. breathing.
• CAN BE A CARCINOGEN!
Sick Building SyndromeSick Building Syndrome• Caused by too many indoor air pollutants• Dizziness, headaches, rash, fever,
fatigue• New buildings get it more conserving
energy and newer construction materials.• Causes absenteeism and loss of
productivity.
OSHA
• Occupational Safety and Health Act of 1970
• Created agency which ensures employers provide employees with an env. free from hazards, such as exposure to toxic chemicals, excessive noise levels, mechanical dangers, heat or cold stress, or unsanitary conditions.
Children and Air PollutionChildren and Air Pollution• EEffectsffects are
compounded among children lungs are still developing
• Have higher metabolic rates which require more O2
• To get more O2, kids breathe larger volumes of air