Air quality trends in Ontario, 1971-1979
By: by K. C. Heidorn.. --
Contributors: Ontario. Air Quality and Meteorology Section
Publisher: Ontario Ministry of the Environment, Air Resources Branch, Air Quality and Meteorology Section, c1981.
Published: 1981
Place of publication: [Toronto, Ont.]
Language: eng
Number of pages: 53
Subjects: Air quality -- Ontario; Air -- Pollution -- Ontario; Air -- Pollution -- Measurement; Air -- Pollution -- Standards