1. How is Human Health Linked With The Environment?

2. 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

3. Lets 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.

4. Whats Your Risk?

5. Top 20 Most Hazardous Substances 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

6. What is Epidemiology? 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 The study of the presence, distribution and control of disease