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| Title | Trends in Pend Oreille River Ambient Monitoring Data. Memo to Will Kendra. | |||
| Month-Year Published | December 1991 | |||
| Online Availability |
438 kilobytes, requires version 4.0 or later of Adobe Acrobat Reader Software get Acrobat Reader
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| Short Description |
Ambient monitoring stations on the Pend Oreille River at Newport and at the international boundary were evaluated for trends in various water quality constituents with emphasis on nutrients. No trend in the difference between stations (i.e., change in the upstream station relative to the downstream station) was found for any of the constituents examined; however, only three years of overlapping data were available. (Also see abstract below) | |||
| Publication Number | 91-e16 | |||
| Author(s) | Hallock, D. | |||
| Print Availability |
Not maintained in stock. Copy must be made from archive version.
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| Number of pages | 12 pp. | |||
| Keywords | ambient monitoring, monitoring, nitrogen, phosphorus, river, stream, water, water quality, WRIA 62 | |||
| Subject Waterbodies |
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| Abstract | Long Description |
Ambient monitoring stations on the Pend Oreille River at Newport and at the international boundary were evaluated for trends in various water quality constituents with emphasis on nutrients. No trend in the difference between stations (i.e., change in the upstream station relative to the downstream station) was found for any of the constituents examined; however, only three years of overlapping data were available. Most water quality constituents have been improving at the upper station in the last 15 years; there have been insufficient data available to evaluate recent trends at the lower station. At the lower station, between 1978 and 1981, nitrogen to phosphorus ratios approached nitrogen limitation during the late-winter to early spring, moving to clear phosphorus limitation during the growing season. |
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