00000nam 2200000zi 4500 9.928722 CaOODSP 20250117144055 m o d f cr |n||||||||| 230123e19920305nkcdb ob f|0| 0 eng d CaOODSP eng rda CaOODSP eng eng fre n-cnm En37-647/1992E-PDF Clair, Thomas A., author. Chemistry trends in Atlantic Canada lakes / Thomas A. Clair, Ginette Devarennes, Geoff Howell. Moncton, New Brunswick : Environment Canada, Conservation and Protection Service, Water Resources Directorate, March 5, 1992. 1 online resource (vi, 77 pages) : charts, maps text txt rdacontent computer c rdamedia online resource cr rdacarrier Digitized edition from print [produced by Environment and Climate Change Canada]. "IWD-AR-WQB-91-174." Includes bibliographical references (pages 21-23). Thirty nine lakes from southwest Nova Scotia and 33 from all over Newfoundland were sampled semi-annually from the Spring of 1983. A number of acidification related water chemistry variables were evaluated for trends using non-parametric techniques. Results showed that pH increased in almost half of Newfoundland lakes. Acid neutralization capacity (ANC) increased in one third of Nova Scotia lakes and in six of the Newfoundland sites. Despite the strong evidence from pH and ANC which suggested a reduction in acidification effect, only a few lakes in Nova Scotia showed decreases in sulfate (SO42). Moreover, base cation concentrations also did not seem to vary much over time"--Abstract, page i. Includes abstract in French. Water Atlantic Provinces Analysis. Eau Provinces de l'Atlantique Analyse. Canada. Environment Canada. Conservation and Protection, issuing body. PDF 3.87 MB https://publications.gc.ca/collections/collection_2025/eccc/en37/En37-647-1992-eng.pdf