ENVR 1401-Environmental Risk Lab w PPT-EC(2).docx -...

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Environmental Risk Lab Objectives Differentiate between perceived risk and actual risk. Identify factors that influence perceived risk.Conduct survey of environmental issues. Analyze and present results of survey data. Activity 1: Perceived RiskIntroductionHow humans perceive risk and the actual risk can be quite different. The issue of perceived risk is studied a lotbecause it influences human behavior. Risk is involved with everything in daily life.InstructionsExamine the causes of mortality in the list below and answer the two questions that follow.Table 1. Causes of mortality in the United States (2000, all ages combined)Accidents (all kinds)Accidents (motor vehicle)Alcohol (deaths directly attributable to alcohol, plus liver disease)Alzheimer’s diseaseBicycle accidentBioterrorist attack with anthraxCancerDrowningFireFood poisoningHeart diseaseHomicideLightningStrokeSuicideList what you believe are the three most important causes of mortality.List what you believe are the three least important causes of mortality
Now examine Table 2, which has data for the year 2000 on causes of mortality in the United States.Table 2. Mortality Risk per 100,000, by Selected Causes of Death, United States, 2000 (All Ages)Cause of DeathMortality Risk /100,000Heart disease 252Cancer 196Stroke 59Accidents (all kinds) 33Alzheimer’s disease 17Alcohol (direct, plus liver disease) 16Accidents (motor vehicle) 15Suicide Homicide Food poisoning 1.8Drowning 1.6Fire 1.2Bicycle accident 0.3Lightning 0.02Bioterrorist attack with anthrax 0.0012Did you correctly identify the most and least important risk factors?Do you think there would be differences if you compared your answers with others? Why? 8 6

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