Differentiate between a toxic chemical, toxic substance, and toxic agent

Work needs to be done from the scratch, the book that I am using is Principles and Practice of Toxicology in public health second edition by Ira Steven Richards and Marie Bourgeois Unit 1 Assessment: 1)Differentiate between a toxic chemical, toxic substance, and toxic agent. Your response should be at least 300 words in length. 2) Define three common terms used in toxicology. In addition, evaluate how media influence (including social media) may impact present situations in this field. Your response should be at least 300 words in length. 3) Identify and discuss three early toxicologists who made the most significant contributions to the progression of toxicology and explain why you chose them. Your response should be at least 300 words in length. 4) Identify a type of epidemiology study that might be used to evaluate a current (within the last 6 months) health concern that has appeared in the news. Provide a short explanation of how the identified study would be set up to evaluate the health issue. Your response should be at least 300 words in length. Unit 2 Assessment: 1) Identify the five broad categories of toxins, and then provide an example of each that is found in the region where you live. Your response should be at least 300 words in length. 2) Discuss the beneficial applications of toxins and provide an example of a specific toxin and its application. Your response should be at least 300 words in length. 3) Identify the factors that modify toxicity. Based on these factors, explain how exposure to the same concentration and duration of a toxin will affect a healthy, middle-aged male differently than a middle-aged female who smokes and has a suppressed immune system. Your response should be at least 300 words in length. 4) Toxicity can manifest in numerous ways. Describe at least four of these ways. Your response should be at least 300 words in length. Unit 3 Assessment: 1) A population of individuals was exposed to lead contamination in drinking water at the concentration of 27 parts per billion (ppb). The following represents a small sample set from the population indicating the level of response to the contaminant rated on a scale from 120. Within your response, please explain how you calculated your answer (1 indicating minimal effects and 20 indicating maximum effects to the lead exposure). Given the data set 9, 12, 7, 15, 8, 9, 10, calculate the following results: a. mean, b. mode, c. median, and d. standard deviation. Your response should be at least 300 words in length. 2) Explain the difference between pollution and contamination. Discuss a specific environmental pollutant that has had a negative effect on the environment. How did the pollutant affect the environment? How was the pollutant introduced and transferred throughout the environment? Your response should be at least 300 words in length. 3) Discuss the pesticide dichlorodiphenyltrichloroethane (DDT). What was DDT initially used for, and how does it work as a pesticide? Explain the benefits of DDT, and then discuss how DDT moves through the environment. Your response should be at least 300 words in length. 4) A family goes fishing at a weekend getaway and has a fish fry with their catch. Several of the family members fall sick, and when they were screened in the emergency room, test results show that benzene was consumed by the family members. The fish that were consumed evidently came from a lake that was contaminated. The following data set represents the level of benzene (in micrograms) that each member consumed. Within your response, please explain how you calculated your answer. Given the data set 215, 501, 305, 298, 345, 305, 465, calculate the results below: a. mean, b. mode, c. median, and d. standard deviation. Your response should be at least 300 words in length. Unit IV Assessment: 1) Identify the three systems of the body in which toxicants can enter, give a brief description of how this may occur, and provide an example of a toxicant that can enter the body through each system. Your response should be at least 300 words in length. 2) Identify the factors that can affect the distribution of a toxicant in the body. Explain how manipulation of these factors can increase toxicity. Your response should be at least 300 words in length. 3) Explain the processes used by the body to eliminate a toxicant. Provide an example of a situation where one of these processes might be inhibited and how the inability to eliminate the toxicant might impact the individual. Your response should be at least 300 words in length. 4) A doctor can send hair samples from a newborn infant to be analyzed in the lab to see if the mother drank alcohol during the pregnancy. This is one test that can be performed to assist in diagnosing fetal alcohol syndrome. Recalling what you know about elimination of toxicants, briefly explain why this test can be used to determine exposure to alcohol. Your response should be at least 300 words in length. Unit VIII Assessment: 1) "G" is the street name of the commonly abused street drug GHB. Like many drugs, the risk of toxicity is increased when mixed with other drugs. Identify another commonly used drug that can be toxic when mixed with GHB. Discuss the progression of effects leading to toxicity and death from the combination of the two drugs. Your response should be at least 300 words in length. 2) How can toxicant absorption be reduced after exposure to the skin? How can absorption be reduced for orally consumed chemicals? Your response should be at least 300 words in length. 3) Identify the four categories of street drugs and provide an example of each. Discuss symptoms of the use of each drug. Your response should be at least 300 words in length. 4) identify the six toxicological principles that are applied in evaluating a poisoned individual. Give an example of two of these principles. Your response should be at least 300 words in length.