CHAPTER 17 Section 17-5; Indoor Air Pollution. OBJECTIVE: Evaluate the types and effects of indoor air pollution.
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Post on 13-Jan-2016
<ul><li><p>CHAPTER 17Section 17-5; Indoor Air Pollution</p></li><li><p>OBJECTIVE:Evaluate the types and effects of indoor air pollution.</p></li><li><p>What Do You Think?What is the most dangerous indoor air pollutant?</p></li><li><p>INDOOR AIR POLLUTIONIndoor air pollution usually is a greater threat to human health than outdoor air pollution.Four most dangerous indoor air pollutants (developed):Tobacco smokeFormaldehydeRadonFine and ultrafine particles</p></li><li><p>WHY?More time insideReduced air exchangePollutants concentratedSick Building Syndrome</p></li><li><p>ChloroformBenzo-a-pyreneStyreneRadon-222Methylene ChlorideTobacco SmokeCarbon MonoxideAsbestosNitrogen Oxides1, 1, 1-TrichloroethaneParticulatesFormaldehydeTetrachloroethylenePara-dichlorobenzeneFig. 17-17, p. 434</p></li><li><p>RADIOACTIVE RADON-222Seep into homesIncrease the risk of lung cancerSmoking linkTestMitigation</p></li><li><p>ASBESTOSFibrous mineralCrumbles into dustAsbestosis, lung cancer, mesotheliomaSmoking link</p></li><li><p>Fig. 19-20, p. 461SolutionsIndoor Air Pollution Prevention Cover ceiling tiles & lining of AC ducts to prevent release of mineral fibersUse adjustable fresh air vents for work spacesIncrease intake of outside airBan smoking or limit it to well ventilated areasChange air more frequentlySet stricter formaldehyde emissions standards for carpet, furniture, and building materialsCirculate a buildings air through rooftop green housesPrevent radon infiltrationUse exhaust hoods for stoves and appliances burning natural gasUse office machines in well ventilated areasUse less polluting substitutes for harmful cleaning agents, paints, and other productsInstall efficient chimneys for wood-burning stovesCleanup or Dilution</p></li><li><p>Fig. 19-21, p. 461What Can You Do?Indoor Air Pollution Test for radon and formaldehyde inside your home and take corrective measures as needed. Do not buy furniture and other products containing formaldehyde. Remove your shoes before entering your house to reduce inputs of dust, lead, and pesticides. Test your house or workplace for asbestos fiber levels and for any crumbling asbestos materials if it was built before 1980. Don't live in a pre-1980 house without having its indoor air tested for asbestos and lead. Do not store gasoline, solvents, or other volatile hazardous chemicals inside a home or attached garage. If you smoke, do it outside or in a closed room vented to the outside. Make sure that wood-burning stoves, fireplaces, and kerosene- and gas-burning heaters are properly installed, vented, and maintained. Install carbon monoxide detectors in all sleeping areas.</p></li><li><p>What Do You Think?What are three of the most dangerous indoor air pollutants?</p><p>What are two ways to reduce indoor air pollution?</p></li><li><p>OBJECTIVE:Evaluate the types and effects of indoor air pollution.</p><p>Figure 19.20Solutions: ways to prevent and reduce indoor air pollution. QUESTION: Which two of these solutions do you think are the most important?Figure 19.21Individuals matter: ways to reduce your exposure to indoor air pollution. QUESTION: Which three of these actions do you think are the most important?</p></li></ul>
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