00000nam 2200000za 4500 9.863903 CaOODSP 20241203113644 cr ||||||||||| 181030s1984 oncd ob f000 0 eng d 0662134281 (print) CaOODSP eng eng fre n-cn-on En36-503/133E-PDF En36-503/133E Neilson, Melanie A. Shipboard analysis of soluble nutrients in lake water versus analysis after storage [electronic resource] / M.A. Neilson and A.H. El-Shaarawi. Burlington, Ont. : Inland Waters Directorate, Ontario Region, Water Quality Branch, 1984. v, 5 p. : charts. Technical bulletin ; no. 133 Issued also in French under title: Comparaison des résultats des analyses immédiates d'éléments nutritifs solubles dans l'eau d'un lac et des résultats des analyses après conservation. Digitized edition from print [produced by Environment and Climate Change Canada]. Includes bibliographical references. "Water samples were collected from Lake Ontario during April and November, filtered (0.45 µm) and immediately analyzed onboard ship for the nutrients soluble reactive phosphorus, nitrate plus nitrite, and ammonia. Replicates were stored in glass bottles at 4°C and reanalyzed within eight days. Statistical analysis showed that soluble reactive phosphorus decreased by 11% and 13% and nitrate plus nitrite by 7% and 6%, whereas ammonia increased by 75% on one cruise and decreased by 37% on the other"--Abstract, p. v. Includes abstract in French. Water quality Water pollution Measurement Ontario, Lake (N.Y. and Ont.) El-Shaarawi, A. H. Canada. Environment Canada. Canada. Inland Waters Directorate. Ontario Region. Water Quality Branch. Comparaison des résultats des analyses immédiates d'éléments nutritifs solubles dans l'eau d'un lac et des résultats des analyses après conservation (CaOODSP)9.863905 Technical bulletin (Canada. Inland Waters Directorate) no. 133. (CaOODSP)9.861123 PDF 1.54 MB https://publications.gc.ca/collections/collection_2018/eccc/en36-503/En36-503-133-eng.pdf