What determines the toxicity of a chemical?

Healthcare
: Undergraduate
: Essay
: English (U.S.)
: 3 pages/825 words
:APA

2 sources due in 3 hours

Environmental Health and Human Health
: Using the South University Online Library or the Internet, research on the following topics: Physical Agents Chemical Agents Biological Agents On the basis of your research and understanding of the topic, answer the following questions: Identify and describe five factors that affect responses to a toxic chemical. What determines the toxicity of a chemical? To what extent do you agree with the assumption that “all substances are poisons”? What is human exposure assessment? Explain some of the methods of exposure assessment. Why is epidemiology important to research studies of environmental health? Give reasoning to support your answer. What are some of the important limitations of the epidemiologic approach with respect to the study of environmental health problems?