00000nam 2200000zi 4500 9.892707 CaOODSP 20241203113654 m o d f cr |n||||||||| 201021s1990 oncad b f00| 0 eng d 0662179226 Print CaOODSP eng rda CaOODSP nl----- En1-12/90-2E-PDF EN1-12/90-2E Bishop, Christine Annette, 1960- author. Contaminants in herring gull eggs from the Great Lakes / authors: Christine Bishop and D.V. Weseloh. Ottawa : Environment Canada, Conservation and Protection = Environnement Canada, Conservation et Protection, [1990] ©1990 1 online resource (12 pages) : illustrations, charts. text txt rdacontent computer c rdamedia online resource cr rdacarrier SOE fact sheet ; no. 90-2 Digitized edition from print [produced by Environment and Climate Change Canada]. Issued also in French under title: Les contaminants dans les oeufs du goéland argenté des Grands Lacs. Includes bibliographical references (page 12). "This fact sheet describes changes in the levels of four organochlorine chemicals (see boxon page 8) in Herring Gull eggs between 1971 and 1989 and the biological effects these chemicals have had on waterbirds. Two of the substances that are reported on here originally entered the environment as organochlorine pesticides: dieldrin and dichlorodiphenyldichloroethylene (DDE), which is a breakdown product of the pesticide dichlorodiphenyltrichloroethane 4 (DDT). The other two chemicals are polychlorinated biphenyls (PCBS) and a dioxin known as 2,3,7,8-tetrachlorodibenzo—p-dioxin (2378-TCDD). The fact sheet also explains the reasons for this ongoing study and how the results relate to the Great Lakes environment of which humans are a part"--Page [1]. Larus argentatus Effect of water pollution on Great Lakes (North America) Larus argentatus Eggs Analysis. Water Pollution Great Lakes (North America) Great Lakes (North America) Environmental conditions. Canada. Environment Canada, issuing body. Canada. Conservation and Protection, issuing body. State of the environment fact sheet ; no. 90-2. (CaOODSP)9.920736 PDF 718 KB https://publications.gc.ca/collections/collection_2020/eccc/En1-12-90-2-eng.pdf