00000nam 2200000za 4500 9.851937 CaOODSP 20241203113642 cr ||||||||||| 180216s1980 oncad|||o f000 0 eng d CaOODSP eng eng fre n-cn-on En36-502/113E-PDF Chan, C. H. St. Lawrence River water quality surveys, 1977 [electronic resource] / C.H. Chan. Burlington, Ont. : Environment Canada, 1980. v, 16 p. : figs., charts. Scientific series ; no. 113 Digitized edition from print [produced by Environment and Climate Change Canada]. Issued also in French under title: Relevés de la qualité des eaux du fleuve Saint Laurent, 1977. Issued by the Inland Waters Directorate, Ontario Region, Water Quality Branch. Includes bibliographical references. "Six water quality surveys were carried out in 1977 on the intetnational section of the St. Lawrence River. Results compared with 1973-1974 data showed no apparent change in the water quality of the river"--Abstract. Includes abstract in French. gccst Rivers gccst Water quality Canada. Environment Canada. Canada. Inland Waters Directorate. Ontario Region. Water Quality Branch. Relevés de la qualité des eaux du fleuve Saint Laurent, 1977 (CaOODSP)9.851941 Scientific series (Canada. Inland Waters Directorate) no. 113 (CaOODSP)9.823618 PDF 1.04 MB https://publications.gc.ca/collections/collection_2018/eccc/En36-502-113-eng.pdf