In the 1978 Love Canal toxic waste crisis, concerned citizens "did a far better job of evaluating the health of the community than did the professionals of the New York Health Department," asserts Marvin Legator. In Chemical Alert A Community Action Handbook, he and coeditor Sabrina Strawn offer a step-by-step guide that can be used by any lay person or citizens' group to determine whether a health risk exists in their area.

Writing for the general reader with no scientific expertise, environmental, medical, and legal professionals instruct communities on the...