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Resultados 281-290 de 304
[Utilization of superficial sediments as indicators of pollution distribution off Barcelona (Spain)]
1981
Serra, J. (Barcelona Univ. (Spain)) | Salat, J. | Cruzado, A.
Particulate transuranic elements in the Eastern Mediterranean Sea
1981
Ballestra, S. | Thein, M. | Fukai, R. (Musee Oceanographique, Monaco. Lab. International de Radioactivite Marine)
Ginseng radix rubra manufacturing process of Panax ginseng [Panax pseudoginseng] C.A. Meyer
1981
Kubota, M. (Nagano-ken. Research Inst. for Health and Pollution (Japan))
The components of wild Phellodendron amurense Ruprecht [Rutaceae]
1981
Kubota, M. (Nagano-ken. Research Inst. for Health and Pollution (Japan)) | Kurashina, I. | Matsuzawa, K.
Investigation on fluorine and heavy metals in the annual rings of trees
1981
Ogihara, K. (Nagano-ken. Research Inst. for Health and Pollution (Japan)) | Seki, H. | Katsuno, T. | Nagase, K.
Eutrophication in lakes and the trophic state index
1981
Kawamura, M. (Nagano-ken. Research Inst. for Health and Pollution (Japan)) | Higuchi, S.
Ecological studies of Salmonella, 2: Incidence of Salmonella in local city sewage and its relation between isolates from humans
1981
Muramatsu, K. (Nagano-ken. Research Inst. for Health and Pollution (Japan))
A survey of the incidence of Salmonella in samples collected from three treatment plants of sewage, food-poisoning, sporadic case with acute enteritis and healthy carrier in a local city, was performed from Aprile 1974 to December 1978. Salmonella were very frequently found in Influent sewage. The range of sewage source serovars found was wide and most aerovara were related with human source. A total of 954 strains and 62 serovars of Salmonella were found in sewage and human source. S. typhimurium, S.tennessee, S.thompson, S.infantis, S. senftenberg and S.oranienberg were the most frequent aerovars. It might be presumed that the environmental contamination of the area by the organisms is increasing gradually, since new aerovars of Salmonella, for example S.havana, S.agona, S.london, S. mission and S.cerro etc., which were never found in Nagano prefecture before, were isolated in the area. Effect of addition of the Aluminum sulfate and Polyacrylamide for Salmonella isolation from sewage, were studied. By use of the floe method. Salmonella were more frequently isolated from influent sewage.
Mostrar más [+] Menos [-]The lipid contents in deep-sea fishes on the market in Nagano prefecture [Japan]: The decrease of lipid contents by cooking
1981
Hayashi, H. (Nagano-ken. Research Inst. for Health and Pollution (Japan)) | Maezawa, H. | Kawamata, S.
A simple analytical method for chlorobenzenes in organic matter
1981
Tsukioka, T. (Nagano-ken. Research Inst. for Health and Pollution (Japan)) | Shimizu, S.
Evaluation of the eutrophication in precipitation based on an algal assay procedure
1981
Sasaki, K. (Nagano-ken. Research Inst. for Health and Pollution (Japan))
