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Physical and Chemical Conditions in Long Pond, St. John's, Newfoundland: A Pond Receiving Both Rural and Urban Runoff
Author(s) -
Andrews C. W.,
O'Connell M. F.
Publication year - 1976
Publication title -
internationale revue der gesamten hydrobiologie und hydrographie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.524
H-Index - 52
eISSN - 1522-2632
pISSN - 0020-9309
DOI - 10.1002/iroh.19760610105
Subject(s) - alkalinity , eutrophication , environmental science , surface runoff , biochemical oxygen demand , nitrate , water quality , total dissolved solids , nutrient , chemical oxygen demand , total suspended solids , suspended solids , ammonium , hydrology (agriculture) , environmental chemistry , phosphorus , environmental engineering , ecology , chemistry , wastewater , biology , geology , geotechnical engineering , organic chemistry
The physico‐chemical environment was studied from June 1971 to May 1973 at five stations in Long Pond, St. John's, Newfoundland. This pond receives both rural and urban runoff and is characterized by a high flushing rate. Of the parameters studied, concentrations of total suspended matter, biochemical oxygen demand (BOD), total CO 2 , and free CO 2 were significantly greater in a small pool prior to the main body of the pond near the entry of Learys Brook. Current speed is noticeably reduced at this point. No significant differences were found between stations with respect to pH, dissolved O 2 , total dissolved solids (TDS), total hardness, Ca hardness, Mg hardness, alkalinity, ammonium‐N, nitrite‐N, nitrate‐N, orthophosphate and polyphosphate. Water quality in Long Pond is compared with unpolluted lakes and streams in the area; nutrient levels are indicative of eutrophic conditions.