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Effects of multiple use on water quality of high-mountain watersheds: bacteriological investigations of mountain streams


, : Effects of multiple use on water quality of high-mountain watersheds: bacteriological investigations of mountain streams. Applied Microbiology 22(6): 1048-1054

Bacteriological studies in 1968 and 1969 corroborated earlier findings that a municipal watershed which had been closed to public entry since 1917 yielded water with four to six times the coliform count found in an adjacent mountain watershed open to recreational activities. Similarly, chemical investigations showed higher concentrations of most ions in water from the closed area. Physiological differentiation of coliform and enterococcal bacteria revealed similar types of organisms in both animal droppings and stream water, with fecal coliforms accounting for as much as 70% of the coliform counts observed in the closed area in 1969. Opening of the closed drainage for limited recreation and expanded logging operations in the spring of 1970 coincided with an unexpected decrease in bacterial contamination of that stream. It is postulated that these human activities drove from the watershed a large wild animal population which had contributed substantially to the previous bacterial pollution. It would seem that the practice of closing high-mountain watersheds to public entry is questionable if governmental standards for water quality are to be met, and it also seems that the standards themselves should be reexamined.

US$29.90

PMID: 4944803


Other references

Takahashi, M.; Deguchi, Y.; Kaneto, H., 1988: Blockade of the development of analgesic tolerance to morphine by concurrent treatment with opioid- but not non-opioid-mediated stress in mice. Studies have been carried out to determine how the analgesic effect of morphine and the development of tolerance to the effect would be influenced by concurrent exposure to stresses in mice. Application of footshock (FS) stress, which produces ana...

Anderson, D.T., 1965: The reproduction and early life histories of the gastropods Notoacmaea petterdi (Ten-Woods), Chiazacmaea flammea (Quay & Gaimard) and Patelloida alticostata (Angas) (Fam. Acmaeidae). Proceedings of the Linnean Society of New South Wales, 90: 106-114

Garrahan, P.J.; Rega, A.F., 1971: Membrane phosphatase and active transport of cations. Nature: New Biology 232(27): 24-25

Gaughan, P.; Middleton, C.; Patton, P., 2013: Syncing nursing theories ith Catholic identity. Health Progress 94(1): 58-62

Monib, M.; Higazy, A.; Hassan, M.E.; Ragab, A.A., 1994: Possibility of magnifying broad bean productivity in fertile Nile valley soils. In field experiments in Benisweif and Menofiya governorates, Egypt, Vicia faba cv. Giza 402 and Giza 2 were given no fertilizer or inoculant, 70 kg N/feddan, inoculated with 3000 ug streptomycin resistant Rhizobium leguminosarum strain RG2, inocul...

Hemenway, H.B.; Davis, W.H.; Chapin, C.V., 1928: Definition of Stillbirth. American Journal of Public Health and the Nation's Health 18(1): 25-32

Anderson, P.J.; McNeil, K.; Watson, K., 1986: High-Efficiency Carbohydrate Fermentation to Ethanol at Temperatures above 40 degrees C by Kluyveromyces marxianus var. marxianus Isolated from Sugar Mills. A number of yeast strains, isolated from sugar cane mills and identified as strains of Kluyveromyces marxianus var. marxianus, were examined for their ability to ferment glucose and cane syrup to ethanol at high temperatures. Several strains were...

Zhao, L.; Li, X.; Quan, X.; Chen, G., 2011: Effects of surface features on sulfur dioxide adsorption on calcined NiAl hydrotalcite-like compounds. The hydrotalcite-based NiAl mixed oxides were synthesized by coprecipitation and urea hydrolysis approaches and employed for SO₂ removal. The samples were well characterized by inductively coupled plasma (ICP) elemental analysis, X-ray diffracti...

Overly, W.L.; Dankoff, J.A.; Wang, B.K.; Singh, U.D., 1984: Androgens and hepatocellular carcinoma in an athlete. Annals of Internal Medicine 100(1): 158-159

Gay, C.V.; Lloyd, Q.P., 1995: Characterization of calcium efflux by osteoblasts derived from long bone periosteum. Inside-out vesicles were prepared from the plasma membrane of osteoblasts which had been isolated from the periosteum of 2-3-week-old chicken tibia and cultured for 6-8 days. Calcium uptake was initiated by adding 0.4 mM ATP and detected as a redu...