ISBN: 0836844289

Edition: North American edition, U.S. edition.

Description: 32 pages : color illustrations ; 28 cm.

Notes: Includes bibliographical references (page 31) and index.

LCCN: 2004056595

Control Number: 476695

Series:

• Improving our environment
• Improving our environment.

Subjects:

• Air -- Pollution -- Juvenile literature.
• Air quality management -- Juvenile literature.