National urban air quality trends, 1978-1987
By: by Inventory Management Division, Regulatory Affairs and Program Integration Branch, Environmental Protection, Conservation, and Protection, Environment Canada.
Contributors: Canada. Environmental Protection Directorate. Regulatory Affairs and Program Integration Branch. Inventory Management Division.
Series: Environmental protection series
Publisher: Environment Canada
Published: 1990
Place of publication: [Ottawa, Ont.]
Language: eng
Number of pages: 60
Subjects: Air quality -- Canada.; Air -- Pollution -- Canada.; Environmental monitoring -- Canada.
Notes: Included bibliographical references (p. 47-49).
Abstract in French.
"May 1990."
"Report EPS 7/UP/3."