00000nam 2200000zi 4500 9.955886 CaOODSP 20251003104411 m o d f cr bn||||||||| 251001e199703##abc ob f000 0 eng d 0662253671 (print) CaOODSP eng rda CaOODSP n-cn-ab n-cn-bc n-cn-nt R71-49/3-141E-PDF R71-49/3-141E Ramamoorthy, S, author. Quality assurance and quality control related to environmental samples for the Northern River Basins Study / prepared for the Northern River Basins Study under project 2911-B1 by S. Ramamoorthy. Edmonton, Alberta : Northern River Basins Study, March 1997. ©1997 1 online resource (iii, 36 pages, 103 unnumbered pages). text txt rdacontent computer c rdamedia online resource cr rdacarrier Northern River Basins Study project report, 1192-3571 ; no. 141 Digitized edition from print [produced by Environment and Climate Change Canada]. Includes bibliographical references (page 19). "Laboratory analyses of animal, water, and sediment samples for various substances provides a snap shot of the condition of the ecosystem. By studying the variation amongst samples over time researchers can begin to gain some insight into the impact of various changes in the study area. The validity of the analytical data measured at trace and ultra trace levels is critical to many of the present day assessments. Results can be questioned due to methodology differences between laboratories, nonadherence to established protocols, lack/poor documentation procedures and differing Quality Assurance/Quality Control (QA/QC) procedures. As the results from the laboratory analyses are taken as absolutes, it is extremely important the Northern River Basins Study (NRBS) have a sufficiently high level of confidence in the results to draw reliable interpretations that could withstand scrutiny. QA/QC programs provide users the assurance that the data are reliable and can be used with confidence"--Study perspective. Issued also in print format. Water quality biological assessment Alberta, Northern Quality control. Environmental monitoring Alberta, Northern Quality control. Eau Qualité Évaluation biologique Alberta (Nord) Qualité Contrôle. Environnement Surveillance Alberta (Nord) Qualité Contrôle. Northern River Basins Study (Canada)‏, issuing body. Quality assurance and quality control related to environmental samples for the Northern River Basins Study / (CaOODSP)9.613579 Northern River Basins Study project report ; no. 141. (CaOODSP)9.883506 PDF 4601 KB https://publications.gc.ca/collections/collection_2025/eccc/r71/R71-49-3-141-eng.pdf