Trends in contaminant levels in the Niagara River.
Contributors: Canada. Conservation and Protection.
Series: State of the environment fact sheet -- no. 93-2; State of the environment fact sheet -- no. 93-2.
Publisher: Environment Canada, Conservation and Protection
Published: 1993
Place of publication: Ottawa
Language: eng
Number of pages: 12
Subjects: Marine pollution -- Environmental aspects -- Niagara River (N.Y. and Ont.); Pollutants -- Environmental aspects -- Niagara River (N.Y. and Ont.)
Notes: Caption title.