ETX 30-1

ETX 30-1 - Environmental Toxicology 30 Chemical Use and...

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Environmental Toxicology 30 Chemical Use and Abuse Topic: Introduction to Chemical Use and Abuse I. What You Will Learn a. Chemicals you encounter in your everyday lives. b. How chemicals affect living systems. c. Beneficial and adverse effects of chemicals. d. A little about a lot: therapeutic drugs, pesticides, food additives, herbal remedies, chemicals in plants, environmental contaminants and recreational drugs. II. Course Content: 3 Blocks a. Block 1: Basic Principles i. What do we mean by chemicals? ii. How do you study them? iii. What do they do? iv. Concept of dose and exposure. v. How do we minimize risk? b. Block 2: How Chemicals are Uses i. Therapeutic drugs ii. Pest management iii. Plant and animal toxins iv. Herbal remedies c. Block 3: How Chemicals are Abused i. When good chemicals go bad ii. Drugs of abuse iii. Poisons iv. Forensic aspects III. Terminology: What is a… a. Chemical-pertaining to chemistry i. Material produced by or used in a reaction involving changes in atoms or molecules ii. Examples: Ciguatoxin, CO ₂, and Benzene b. Element i. Distinguished by atomic number ii. i.e. number of protons in nucleus c. Compound i. Pure chemical substance made up or two or more different chemical elements. d. Drug i. Chemical substance used in the treatment, cure, prevention, or diagnosis of disease. ii. Something (often) illegal that causes addiction, habituation, or a marked change in consciousness. e. Poison i. A chemical substance that causes injury, illness, or death. f. Toxicant i. Poisonous material capable of causing death or serious debilitation. g. Toxin i. Poisons produced by certain plants, animals, and bacteria-usually a large molecular weight protein. IV. More Definitions: Sciences a. Pharmacology: the science that deals with the origin, nature, chemistry, effects, and uses of drugs.
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b. Toxicology: the study of the adverse effects of chemical, physical or biological agents on living organisms and the ecosystem, including the prevention and amelioration of such adverse effects. c.
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This note was uploaded on 04/15/2010 for the course ETX 30 taught by Professor Byard,j during the Spring '08 term at UC Davis.

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ETX 30-1 - Environmental Toxicology 30 Chemical Use and...

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