The Dose Makes the Poison

Introduction to the Third Edition xi

Preface to the Second Edition xv

1 WHAT ARE CHEMICALS? 1

Atoms and Molecules 1

Natural Chemicals 2

Synthetic Chemicals 3

Chemical Categories 6

Chemicals: “Good” and “Bad” 8

Why the “Good-Bad” Dichotomy? 10

Man-made Chemicals Are Made by Humans 11

Man-made Chemicals May Not Be Biodeg...