1. A pollutant released indoors is about 1000 times more likely to be inhaled than that same amount outdoors. Nazaroff, 2000 RULE OF A THOUSAND

2. Indoor Air Pollution According to a study conducted by the United States EPA, indoor air can actually be more polluted than outdoors. The EPA ranks indoor air pollution among the top five environmental risks to public health. People spend up to 90% of their time indoors. According to the American Health Association 50% of all illnesses are caused or aggravated by indoor air pollutants

3. Sick Building Syndrome A condition associate with an indoor environment that appears to be unhealthy. The symptoms people report cannot be traced to any one particular cause

4. Sources of Indoor Air Pollution Kerosene heater www.chemistryland.com Gas stove www.sispropane.ca Fireplace www.3planesoft.com Car exhaust from garage Sims2.puskala.org Gas heater www.homeinteriorszone.com

7. Sources of Indoor Air Pollution Particle board www.germes-online.com Plywood www.vgtrading.com.ar Img.epinions.comwww.vintageagainsoutheast.comwww.californiapaints.com Paneling www.cof.orst.edu

13. www.sciencephoto.com Dust mites Enhs.umn.edu Aura.gaia.com Dust Mite Feces www.buttercuppuppies.com

14. Dust Mite S. Kaulitzki/Dreamstime

15. Pollen specialcomment.wordpress.com Fungal spores www.healthinitiative.org Bacteria www.,materials.drexel.edu Viruses www.scharfphoto.comStatic.howstuffworks.com

18. Geoscape.nrcan.gc.ca

19. Radioactive Decay Emission

20. www.epa.gov Zone 1 (red) = high radon

21. Chrysotile Asbestos Robert Grieshaber

22. Asbestos Robert Grieshaber Chrysotile Amosite Crocidolite Chrysotile www.enviraz.co.uk

23. Asbestos Fire blanket Brake pads Pipe insulation Locomotive insulation Roofing products Lamp wicks Ship insulation Mine oraclesolutionsltd.co.uk Attic insulation Home insulation www.technicaon-asbestos.co.uk

24. Health Effects of Asbestos Lung cancer: 4800 deaths/yr US Mesothelioma: 2500/yr Cancer of mesothelial membrane lining lungs Reports.ewg.org Asbestosis: 1400/yr US: Slow, debilitating lung disease Gastro-intestinal cancer: 1200 deaths/yr

25. Libby, Montana www.bitsofnews.com Closed Libby vermiculite facilityLibby contaminated soil covered www.home-air-purifier-expert.com Vermiculite mine, which produced 80% of the world’s vermiculite, opened in 1918. W.R. Grace Co. owned the mine from 1963-1990, during which 192 deaths and 375 lung injuries due asbestos were reported.

26. Environmental Tobacco Smoke Mainstream smoke Exhaled smoke Sidestream smoke Emitted from burning cigarette Environmental tobacco smoke (ETS) = second- hand smoke Combination of mainstream and sidestream smoke. Contains more than 4000 particle components and gases, over 50 of which are known carcinogens. ETS may cause 17% of lung cancers of nonsmokers.

27. Mainstream/Sidestream Smoke R. Kneschke/Henrischmit/Dreamstime