Physical and Chemical Conditions in Long Pond, St. John's, Newfoundland: A Pond Receiving Both Rural and Urban Runoff
作者:
C. W. Andrews,
M. F. O'Connell,
期刊:
Internationale Revue der gesamten Hydrobiologie und Hydrographie
(WILEY Available online 1976)
卷期:
Volume 61,
issue 1
页码: 63-87
ISSN:0020-9309
年代: 1976
DOI:10.1002/iroh.19760610105
出版商: Akademie Verlag, Berlin
数据来源: WILEY
摘要:
AbstractThe 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 CO2, and free CO2were 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 O2, 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 con
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