APES Get out Air Pollution Lab Get out Superfund Poster – staple rubric to the BOTTOM (So we see...
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Transcript of APES Get out Air Pollution Lab Get out Superfund Poster – staple rubric to the BOTTOM (So we see...
![Page 1: APES Get out Air Pollution Lab Get out Superfund Poster – staple rubric to the BOTTOM (So we see both the poster & the rubric at the same time)](https://reader035.fdocuments.net/reader035/viewer/2022081516/56649e425503460f94b348ec/html5/thumbnails/1.jpg)
APES
• Get out Air Pollution Lab• Get out Superfund Poster –
staple rubric to the BOTTOM (So we see both the poster & the rubric at the same time)
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Indoor Air Pollution
Ch. 18
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Indoor Air Pollution
The most threatening indoor air pollutants are smoke and soot from the burning of wood and coal in cooking fires (mostly in less-developed countries), cigarette smoke, and chemicals used in building materials and cleaning products.
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Developing Countries• Indoor burning of wood, charcoal, dung,
crop residues, coal• Poor suffer the greatest risk
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Developed Countries
WHY?– 11 of the common air
pollutants higher inside than outside
– Greater in vehicles than outside
– Health risks magnified: people spend 70 – 98% of their time indoors/in cars.
Indoor air pollution > outdoor air pollution
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Who is at greatest risk?
• Children under 5• Elderly• Sick• Pregnant Women• People with respiratory
disorders or heart problems• Smokers• Factory Workers
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Fig. 18-19, p. 482
Chloroform Source: Chlorine-treated water in hot showers Possible threat: Cancer
Para-dichlorobenzene Source: Air fresheners, mothball crystals Threat: Cancer
Tetrachloroethylene Source: Dry-cleaning fluid fumes on clothes Threat: Nerve disorders, damage to liver and kidneys, possible cancer
Formaldehyde Source: Furniture stuffing, paneling, particleboard, foam insulation Threat: Irritation of eyes, throat, skin, and lungs; nausea; dizziness1,1,1-Trichloroethane
Source: Aerosol sprays Threat: Dizziness, irregular breathing
Styrene Source: Carpets, plastic products Threat: Kidney and liver damage
Nitrogen oxides Source: Unvented gas stoves and kerosene heaters, woodstoves Threat: Irritated lungs, children's colds, headaches Benzo- -pyrene
Source: Tobacco smoke,woodstoves Threat: Lung cancer
Particulates Source: Pollen, pet dander, dust mites, cooking smoke particles Threat: Irritated lungs, asthma attacks, itchy eyes, runny nose, lung disease Radon-222 Source:
Radioactive soil and rock surrounding foundation, water supply Threat: Lung cancer
Tobacco smoke Source: Cigarettes Threat: Lung cancer, respiratory ailments, heart disease
Asbestos Source: Pipe insulation, vinyl ceiling and floor tiles Threat: Lung disease, lung cancer
Carbon monoxide Source: Faulty furnaces, unvented gas stoves and kerosene heaters, woodstoves Threat: Headaches, drowsiness, irregular heartbeat, death
Methylene chloride Source: Paint strippers and thinners Threat: Nerve disorders, diabetes
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Indoor Air PollutionSick Building Syndrome
Fig. 17-17p. 434
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Four Most Dangerous Indoor Air Pollutants
1. Tobacco Smoke2. Formaldehyde (CH2O)
3. Radioactive radon – 222 gas4. Very Small particles
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Other Possible Indoor Air Pollutants
• Living organisms & their excrements–Dust mites & cockroach droppings
• Airborne spores of molds & mildew
• Pesticide Residue
• Pb Particles
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Radon-222
• Colorless, odorless, radioactive gas
• Produced by natural decay of Uranium-238, small amounts found in rocks/soil
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Radon-222
• When released outside decay = harmless
• Can build to high levels inside.
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Radon Gas Case Study
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Radon-222
• Decays into solid particles of other radioactive elements. ie: polonium-210
• Inhaled exposes lungs to alpha particles
• 2nd leading cause of lung cancer
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Effects of Air Pollution on Living Organisms and Materials
• Damage to mucous membranes• Respiratory Disease– Lung cancer– Asthma – allergic reaction– Chronic Bronchitis – persistent
inflammation– Emphysema – Irreversible damage
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Nasal cavity
Oral cavity
Pharynx (throat)
Trachea (windpipe)
Bronchus
Right lung
Bronchioles
(see figure 17.18b)
(see figure 17.18c)
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Epithelial cell
Cilia
Mucus
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Bronchiole
Alveolar duct
Alveoli
Alveolar sac(sectioned)
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Effects of Air Pollution on Living Organisms and Materials
• Damage to plant leaves and roots
• Reduction in primary productivity
• Deterioration of materials
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Premature Deaths from Air Pollution in the U.S.
Fig. 18-22, p. 485