Danger in the water.

Discusses Canadians' growing concern about the level of pollutants and toxic wastes in their lakes, rivers, and coastal waters. Concern about drinking water; Pulp-and-paper mills; Types of toxic wastes; Tolerance of pollution from industries which provide jobs and tax revenues; Need for stricter regulation; St. Lawrence River; US-Canadian efforts to clean up the Great Lakes. INSET: A glossary of contaminants..