00000nam 2200000zi 4500 9.897430 CaOODSP 20230324133529 m o d f cr |n||||||||| 210311t20212021qucda ob f00| 0 eng d 9780660378671 CaOODSP eng rda CaOODSP n-cn--- En154-129/2021E-PDF Lafrance, Myriame, author. Contamination of water by toxic substances / prepared by: Myriame Lafrance and Caroline Robert. Gatineau, Québec : Environment and Climate Change Canada = Environnement et Changement climatique Canada, 2021. ©2021 1 online resource (13 pages) : charts, illustrations. text txt rdacontent computer c rdamedia online resource cr rdacarrier Issued also in French under title: Contamination de l’eau par les toxiques. Caption title. Includes bibliographical references (page 12). "According to the results of recent analyses of water quality in the St. Lawrence, concentrations of polybrominated diphenyl ethers (PBDEs) have been declining steadily since 2010. Levels of other contaminants are stable or low, with copper being the only contaminant of concern"--page 1. Polybrominated diphenyl ethers Saint Lawrence River. Water quality Saint Lawrence River. Canada. Environment and Climate Change Canada, issuing body. Québec (Province). Ministère de l'environnement, issuing body. Contamination de l’eau par les toxiques / (CaOODSP)9.897431 PDF 1.37 MB https://publications.gc.ca/collections/collection_2021/eccc/En154-129-2021-eng.pdf