APES- Chapter #15: Environmental Health, Pollution and ToxicologyName: __________________________________________________Learning Objectives:Serious environmental health problems and diseases may arisefrom toxic elements in water, air, soil, and even the rocks on which we build our homes.After reading this chapter, you should understand:How the termstoxic, pollution, contamination, carcinogen, synergism, andbiomagnificationsare used in environmental healthWhat the classification and characteristics are of major groups of pollutants ofenvironmental toxicologyWhy there is controversy and concern about synthetic organic compounds such asdioxinWhether we should be concerned about exposure to human-producedelectromagnetic fieldsWhat the dose-response concept is and how it relates toLD-50, TD-50 and ED-50, ecological gradients, and toleranceHow the process of biomagnifications works and why it is important in toxicologyWhy the threshold effects of environmental toxins are importantWhat the process of risk assessment in toxicology is and why such processes areoften difficult and controversialWhat the precautionary principle is and why it is importantRead: “Demasculinization and Feminization of Frogs in the Environment”1: What isAtrazine2:What problemsdoes Atrazine cause in frogs?3: What is a hormone disruptor? How is Atrazine a hormone disruptor?Explain.4: What is a HAA?Define.5: What is disease?What factors cause disease?6: Explain what happened at Lake Nyos, Cameroon.?
7:Define the followingPollution:Contamination:Toxic:Toxicology:Carcinogen:Synergism:Point sources:Give example:Area sources (non-point):Give example:Mobile sources:Give example:8:Define the following: (Identify when they are used)ppm:ppb:mg/L:μg/m3:9: What is anInfectious Agent?(Give examples):10: What are some common heavy metals found in the environment?What healthhazards can they pose to humans?:
11: What is the concept ofBody BurdenWhat are the body burdens for the following?Antimony:Mercury:Arsenic:Cadmium:Lead:12: Definebiomagnification/bioaccumulation:13: Describe howCadmiumis a good example of biomagnification.14: How doesMercuryenter the environment?15: DefineMethylation:16: DefineVolatilization:17: Define:Persistent Organic Pollutant (POP)and describe the properties that definethem.18: Give some examples ofHAA’s:?