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Public Health Services A Shared Service of Cape Breton District Health Authority (CBDHA) & Guysborough Antigonish Strait Health Authority (GASHA). Brochure. Learning Objectives. Define and identify sources of PAHs Discuss Health Effects of PAHs
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Public Health Services A Shared Service of Cape Breton District Health Authority (CBDHA) & Guysborough Antigonish Strait Health Authority (GASHA)
Learning Objectives • Define and identify sources of PAHs • Discuss Health Effects of PAHs • Review actions for reducing exposure to PAHs
Description • Can be colorless, white or pale yellow/green solids • Chemicals that occur naturally and as a result of human activities • Examples include Benzo(a)pyrene and Benzo(b) fluoranthene • PAHs are formed when materials that contain carbon and hydrogen do not completely burn
Sources of PAHs • Formed during incomplete burning of : • Coal • Oil • Gas • Garbage • Tobacco
Sources of PAHs Released from : • Volcanoes • Forest Fires • Exhaust
Sources of PAHs Found in: • Coal and roofing tar • Crude oil / Creosote • Some dyes • Plastics • Pesticides • BBQ or smoked meat and fish
How Are We Exposed? • Inhalation of air releases • Contact with contaminated soil • Ingestion of contaminated water or cow’s milk
How Are We Exposed? Contaminated Foods • Charred or smoked meat and fish • Cereals • Flour • Vegetables • Fruits • Marine life in contaminated waters • Exposed indoors mostly through second hand smoke
PAHs and Your Health Some PAHs have been shown to be cancer causing: • Chronic Bronchitis • Skin Problems • Allergies
PAHs and Your Health Fetus is at greater risk and susceptibility : • Growth retardation • Low birth weight • Small head circumference • Low IQ • Damage DNA • Disrupt endocrine systems, such as estrogen, thyroid, and steroids
Tests to Determine Exposure Tests are available for some PAHs or their byproducts, but only at special facilities with required equipment • Urine • Blood • Body tissue Can indicate expose but not whether health effects will develop
Protect Yourself: Protect Your Family • Ensure proper enclosure, ventilation and protective equipment • Wash immediately after exposure and before going home • Change clothes at work, launder separately • Avoid second hand smoke • Use a properly installed woodstove • Avoid smoked foods • If you barbeque – remove charred parts • Obey “No Fishing” advisories • Don’t smoke
Resources • ATSDR www.atsdr.cdc.gov/tfacts69.pdf • Health Canada www.hc-sc.gc.ca
In Review • What are PAHs and how we are exposed to them • How do PAHs effect our Health • How can we reduce our exposure to PAHs