Lecture 22 – Chemical Exposure and Dosage
In this lecture, students learn components of risk – hazard and exposure and how green chemistry aims to minimize hazard, which ultimately leads to minimizing the risk. This lecture also defines the concept of dose and how the toxicity testing is currently done through dose-response curves. A small class activity on the dose-response curve for solvents allows student to use their newly learned knowledge on dose-response in practice and a quiz at the end summarizes the key concepts covered during this class period.
Lesson download includes:
Lesson Plan 22: Chemical Exposure and Dosage
Presentation 22: Chemical Exposure and Dosage
Content Preview: Risk Assessment, Hazard, Exposure, Dose, Dose Response Curve, LOAEL, NOAEL, and Reference Dose and Tools for Hazard Characterization
Homework 5: Chemical Exposure and Dose with Key
Class Exercise: Lettuce Seed Assay and Daphnia Bioassay LD 50
Reading: Toxicology Dose Response
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