00000nam 2200000zi 4500 9.867664 CaOODSP 20241203113645 m o d f cr nn||||||||| 190128s1986 onc ob f000 0 eng d CaOODSP eng rda CaOODSP eng fre n-cn--- En13-5/86-94E-PDF Lee, H. B., author. Dredging quality control study no. 4 (DQC-4) : analysis of PCBs and toxic trace metals in dry sediment reference materials / by H.B. Lee, J.A. Abbott and A.S.Y. Chau. Burlington, Ontario : Analytical Methods Division, National Water Research Institute, Canada Centre for Inland Waters, 1986. 1 online resource (21 pages). text txt rdacontent computer c rdamedia online resource cr rdacarrier NWRI contribution ; 86-94 Cover title. "Control no. AM312." "April 1986." Digitized edition from print [produced by Environment and Climate Change Canada]. Includes bibliographical references (page 12). "Quality Assurance and Methods Section was requested by EPS-OR and PWC-Toronto to set up a quality control study to evaluate the analytical capability and performance of contract and government laboratories for PCB and trace metal analysis; In Study DQC-4, 14 laboratories in Ontario, Quebec, British Columbia and Nova Scotia participated. This report compiles, evaluates and interprets the data collected for PCBs and eight trace metals. The performance of each laboratory was statistically assessed for each parameter and the results are to be used as one of the criteria in the selection of contract laboratories"--Executive summary. Includes executive summary in French. Contaminated sediments--Analysis Polychlorinated biphenyls--Analysis Heavy metals--Analysis Abbott, J. A., author. Chau, A. S. Y. (Alfred Shun-Yuen), 1941- author. Canada. Environment Canada. National Water Research Institute (Canada). Analytical Methods Division. NWRI contribution ; 86-94. (CaOODSP)9.844121 PDF 2.12 MB https://publications.gc.ca/collections/collection_2019/eccc/En13-5-86-94-eng.pdf