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| NCASI Long-term Receiving Water Studies - 2004 Progress Update |
| Type: |
Misc Doc |
| Published: |
November 2004 |
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| File Size: |
3,187 KB |
Category: |
Miscellaneous Documents |
| File Type: |
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(Adobe PDF) |
Frequency: |
As Needed |
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| Abstract |
| In 1998, NCASI began its long-term receiving water studies (LTRWS) project at three U.S. locations, Codorus Creek, Pennsylvania, and the McKenzie and Willamette Rivers, Oregon. In 1999 a fourth study site was added, the Leaf River, Mississippi. These study sites represent a spectrum of pulp and paper mill process (bleached and unbleached kraft) and freshwater ecosystem (warmwater and coldwater) types to permit science based assessments to address questions relative to possible effluent effects. The LTRWS was developed as a long-term monitoring study so that possible mill effluent effects could accurately be addressed within the context of long-term natural variability for fish, macroinvertebrate and periphyton populations and communities. In addition, each study location includes multiple sample stations over a broad longitudinal river gradient allowing for a determination of natural gradient changes in river biota that might otherwise be confused with upstream/downstream mill effluent effects. This research summary provides a progress report of study highlights now that the first five to six years of monitoring have been completed. |
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