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How is Human Health Linked With The Environment?. Environmental Hazards: Cultural, Biological, Physical, & Chemical. Cultural : Risky behavior that subjects one to hazards Biological : Infectious Diseases Physical : Natural Disasters such as hurricanes, floods, tornadoes, fires, earthquakes
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Environmental Hazards: Cultural, Biological, Physical, & Chemical • Cultural: Risky behavior that subjects one to hazards • Biological: Infectious Diseases • Physical: Natural Disasters such as hurricanes, floods, tornadoes, fires, earthquakes • Chemical: Toxic chemicals from industry and technology in paints, pesticides, fuels medicines and cleaning agents
Let’s Begin With Risk Assessment • Everything we do involves some risk! • The process of evaluating a particular hazard before taking action is known as risk assessment.
Arsenic Lead Mercury Vinyl Chloride Benzene Polychlorinated Biphenyls (PCBs) Cadmium Benzopyrene Polycyclic Aromatic Hydrocarbons Benzofluroanthene Chloroform DDT Aroclor 1260 Aroclor 1254 Trichlorethylene Chromium Dibenzanthracine Dieldrin Hexachlorbutadiene DDE Top 20 Most Hazardous Substances
What is Epidemiology? The study of the presence, distribution and control of disease • Life Expectancy: universal indicator of health • In 1955,averagelife expectancy was 48 • In 2000; 67 and by 2023; 73 • CDC (Center for Disease Control & Prevention) US federal agency • WHO (World Health Organization) established 1948 by United Nations