Pesticides in Fruits and Vegetables


Table of Contents


Chemistry and Pesticides

Laboratory Protocols


Chapter 1: Organochlorine Pesticides


Properties of Organochlorine Pesticides

Health Risks of Organochlorine Pesticides

Pesticides and Children

Your Mission


Chapter 2: Solubilities of Organic Compounds

The Relationship Between Structure and Solubility

Prelab Assignment: Organic Solubilities

Laboratory Procedures: Organic Solubilities

Postlab Questions


Chapter 3: Fundamentals of Organic Extraction

Extraction of Solid Samples With Low Water Content

Extraction of Solid Samples With High Water Content

Extraction of Liquid Samples

Measurement of the Efficiency of an Extraction

Prelab Assignment: Pesticide Extraction

Laboratory Procedures: Pesticide Extraction


Chapter 4: Supercritical Fluid Extraction

What Are Supercritical Fluids?

The Extraction Process

Prelab Assignment: Supercritical Fluid Extraction

Laboratory Procedures: Supercritical Fluid Extraction


Chapter 5: Gas Chromatography as a Tool for the Analysis of Organic Compounds

How Does Gas Chromatography Work?

Detection Systems for Gas Chromatography

Laboratory Procedures: Interpreting Chromatograms


Chapter 6: Risk Assessment and Human Health

How Do You Assess Risks Associated with Exposure to Toxic Substances?

What is Cancer?

Methods Used to Determine Potential Risks of Toxic Substances

Perceiving Risk

Laboratory Procedures: Risk Assessment


Chapter 7: Pesticide Regulation and Tolerance Levels

The Laws of Pesticide Regulation

Setting Tolerance Levels

The Food Quality Protection Act of 1996


Chapter 8: The Great Debate

Prelab Assignment: The Pesticide Debate

Guidelines for the Debate

Grading the Assignment

Glossary of Terms from the Readings

Additional References for the Pesticide Debate

Final Report for the Pesticide Module


Appendix A: Tolerance Levels for Selected Pesticides

Appendix B: Pesticide Residue Survey of Produce from 1989 to 1991


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