00000nam 2200000zi 4500 9.871012 CaOODSP 20241203113647 m o d f cr ||||||||||| 190403s1999 onca #ot f000 0 eng d CaOODSP eng rda CaOODSP eng fre n-cn-ns En13-5/99-78E-PDF Onuska, Francis I., 1935- author. Bacterial degradation of PCB in Sydney Harbour sediment / F.I. Onuska [and three others]. Burlington, Ontario : National Water Research Institute, [1999] 1 online resource (26 pages) : figures. text txt rdacontent computer c rdamedia online resource cr rdacarrier NWRI contribution ; 99-078 Digitized edition from print [produced by Environment and Climate Change Canada]. Includes bibliographical references. "The degradation of PCBs by two biphenyl-utilizing bacterial strains, Alkaligenes xylosoxidans and Pseudomonas stutzeri, was studied in sediment from Sydney Harbour, Nova Scotia which was contaminated by PCBs and coal tar. In addition to the congener specificity, significant differences were observed between the two bacterial strains in the degradation of PCBs in different sediment samples. The efficiency of degradation was generally low for higher chlorinated congeners. These results indicate that the degradation of PCBS is probably related not only to the bacterial strain employed and the high concentration of PAHs in the sediment, but also to sediment sorption of the PCB congeners. The degradation is faster in sediments containing an intermediate amount of organic carbon with a high proportion of total aromatic carbon in the humic acid fraction. This study was supported by the North Atlantic Treaty Organization"--Abstract. Includes abstract in French. gccst Sediments gccst Water pollution Canada. Environment Canada. National Water Research Institute (Canada) NWRI contribution ; 99-078. (CaOODSP)9.844121 PDF 1,004 KB https://publications.gc.ca/collections/collection_2019/eccc/en13-5/En13-5-99-78-eng.pdf