Water Quality in the Merced River Above and Below the El Portal Sewage Treatment Plant Near Yosemite National Park, California, 1975-77 (Classic Reprint) - Hardcover

Inhaltsangabe

Excerpt from Water Quality in the Merced River Above and Below the El Portal Sewage Treatment Plant Near Yosemite National Park, California, 1975-77

The purpose of this study was to examine and describe any differences in water chemistry and periphyton growth in the Merced River upstream and down stream from the treated sewage discharge at Rancheria Flat near El Portal.

The approach of this study included measuring selected physical, chem ical, and biological characteristics and constituents at four sites on the Merced River and one site on the South Fork Merced River (fig. 1, table Physical characteristics included streamflow, specific conductance, and water temperature. Chemical constituents and properties consisted cu? Nitrogen, phosphorus, silica, dissolved oxygen, alkalinity, and ph, with emphasis placed on measuring plant nutrients. Biological constituents consisted of periphyton with emphasis placed on measuring their abundance.

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