Publication Summary

Title

Review of Sediment Quality Data for the Similkameen River

Month-Year PublishedJuly 2000
Online Availability
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Short Description

Chemical and biological data were reviewed from sediment samples collected at nine sites in the Similkameen River during 1995 - 1999. Except for arsenic, the level of chemical contamination is low. Arsenic concentrations have exceeded sediment quality guidelines in the Palmer Lake/Nighthawk area. Bioassays with Hyalella azteca and Microtox, however, have given inconsistent indications of toxicity. Limited benthic macroinvertebrate sampling also points to the slow-moving reach near Palmer Lake/ Nighthawk as potentially having a low-level metals contamination problem. This would be the area to focus on, if further sediment sampling were conducted.

Publication Number00-03-027
Author(s)Johnson, A., and R. Plotnikoff
Print Availability
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Number of pages 24 pp. + app (42 total)
Keywords arsenic, bioassay, chemical, lake, river, sediment, toxic
Subject Waterbodies
Similkameen River
map of Washington state showing locations of subject waterbodies

This page last updated October 8, 2008