Advances in Water Pollution Research. Proceedings of the by O. Jaag PDF

By O. Jaag

ISBN-10: 0080114385

ISBN-13: 9780080114385

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Reactions of bitterlings, Acheilognathus limbata ( T E M M I N K et SCHLEGEL) to acid gradients F I G . 3. Vmin, and the thin line represents the behavior o f leader fish observed every 2\ m i n . Chain lines indicate the lines o f equi-concentration o f toxicant tested. Small triangles show the time when concentrations o f toxicant were measured. Toxic solution is introduced at the position 100 and drained at 100 after being diluted. then made clear with each species of fish and with each kind of toxicant.

Tuberculosis have been shown on the culture, while the corresponding guinea-pigs do not present any tubercular lesion. Modern Microbiological and Virological Aspects of Water Pollution 7 In order to assess the value of the river tests, it is very important to look at the mode of sampling. One liter of water collected at a given moment cannot account for a contamination by pathogenic bacteria in a limited diffusion, as compared to that of germ tests in fecal contamination. The gauze method is indispensable, in this way the presence of Koch bacilli has been demonstrated at two occasions immediately downstream of Paris.

The enteroviruses represent, as to be expected, the greatest majority of isolated cultures. The polioviruses alone represent almost 75 per cent of positive isolations. On the contrary, one is impressed by the high proportion of enteroviruses not iden­ tified (10 per cent of the entire isolated enteroviruses). This can be explained by the fact that the actual nomenclature of the enteroviruses is based on the study of isolated cultures from samples of human origin, mostly from pathological cases.

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Advances in Water Pollution Research. Proceedings of the Second International Conference Held in Tokyo, August 1964 by O. Jaag

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