Spring 2020 - BISC 313 D100
Environmental Toxicology: A Mechanistic Perspective (3)
Class Number: 2488
Delivery Method: In Person
Course Times + Location:
Mo, We, Fr 10:30 AM – 11:20 AM
AQ 3159, Burnaby
Exam Times + Location:
Apr 24, 2020
8:30 AM – 11:30 AM
TAKE HOME-EXAM, Burnaby
1 778 782-5640
Prerequisites:BISC 101 and one of BISC 204, GEOG 215, or MBB 231; all with a grade of C- or better.
Students are introduced to general principles of toxicological action, testing, evaluation and assessment. The environmental fate and toxic mechanisms of action of several important classes of environmental pollutants in several organisms (including humans) will be examined at different levels of organization, from the molecular and biochemical to the function of organ systems and behavior.
This course serves as an introduction to the field of Environmental Toxicology. General principles of toxicological action, testing, evaluation and assessment will be discussed. The toxicological action and fate of several important classes of environmental pollutants in several organisms (including humans) will be examined at different levels of organization from the molecular and biochemical to the function of organ systems and behavior.
COURSE-LEVEL EDUCATIONAL GOALS:
Objectives of Course
Upon successful completion of this course, the student should be able to:
1. Describe the fate of foreign compounds in the environment and in a variety of different organisms and the general principles behind this fate.
2. Explain some of the common biological mechanisms negatively impacted by environmental contaminants and give several examples of common environmental pollutants and their specific mechanisms of action.
3. Recognize the variety of toxic impacts that environmental contaminants have on organisms and ecosystems.
4. Evaluate data obtained from common toxicological tests; and
5. Identify and discuss various issues related to toxicology, such as risk assessment.
Tentative Lecture Schedule:
The course is given in four sections: Part I: Introduction to Toxicological Principles, Part II: Toxicological Testing, Part III: Specific Toxicants, and Part IV: Environmental Risk Assessment
Part I: Introduction to Toxicological Principles
Week 1 Introduction to and definition of toxicology. History of toxicology.
Week 2 Goals of the toxicologist. Different areas of toxicology. Introduction to toxicokinetic phases of toxicant action.
Week 3 Introduction to exposure to chemicals. Mechanisms of toxicant absorption (routes of exposure) and distribution.
Week 4 The metabolism and excretion of toxicants. Principles and examples of bioaccumulation and biomagnification.
Week 5 Midterm Exam I. Continue excretion.
Week 6 Introduction to the toxicodynamic phase of toxicant action.
Week 7 General mechanisms of toxic action.
Part II: Toxicological Testing
Week 8 Numbers in toxicology. Dose-response relationships. Statistics.
Week 9 Toxicological testing procedures: acute, short-term, and chronic tests. Other toxicity tests.
Week 10 Midterm Exam II. Continue toxicity testing.
Part III: Specific Toxicants
Week 11 Mechanisms of mutagenisis, carcinogenesis and teratogenesis.
Week 12 Pesticides and heavy metals.
Week 13 Persistent Organic Pollutants. Petroleum products and polycyclic aromatic hydrocarbons. Endocrine disruptors.
Part IV: Risk Assessment and Legislation
Final Exam. April TBA
- Midterm Examination 40%
- Final Examination 60%
|Grade||Grade Points||% Conversion||Definition of Grade|
|B+||3.33||76-79||Very good achievement|
This grade does not permit students to pursue another course for whichthe graded course was prerequisite
The minimum course requirements have been successfully completed.
Student did not meet minimum requirements.
MATERIALS + SUPPLIES:
Other sources of lecture material are:
'Casarett and Doull's Toxicology, The Basic Science of Poisons'. C. D. Klaassen, M. O. Amdur and J. Doull, eds. Macmillan, New York, 2008.
Introduction to Toxicology, by J. A. Timbrell. 1989. Taylor & Francis Ltd., London.
'Basic Toxicology: Fundamentals, Target Organs, and Risk Assessment'. F. C. Lu. Hemisphere, New York, 1985.
'Introduction to Toxicology'. J. A. Timbrell. Taylor and Francis, New York, 1989.
'Introduction to Environmental Toxicology'. F. E. Guthrie and J. J. Perry, eds. Elsevier Science Publishing, New York, 1980.
'A Textbook of Modern Toxicology'. E. Hodgson and P. E. Levi. Elsevier Science Publishing, New York, 1987
There is NO required textbook: material will be from lecture notes only, or supplied articles by the Instructor.
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