  |
|
|
|
|
| Title | Survey of Pesticides in Sediments in the Vicinity of Shoalwater Bay Tribal Lands. | |||
| Month-Year Published | December 1989 | |||
| Online Availability |
434 kilobytes, requires version 4.0 or later of Adobe Acrobat Reader Software get Acrobat Reader
| |||
| Short Description |
In 1978 and 1979, persistent pesticides were found in water and sediments in streams that emptied into Willapa Bay tideflats adjacent to Shoalwater Bay Indian tribal lands. This study reports analyses of sediments collected during 1989 in the same area. No chlorinated pesticides, PCBs or organophosphorus pesticides were detected in four sediment samples or one composite shellfish sample taken from tribal tideflats. Bioassays (Microtox and Hyallela azteca) found the sediments non-toxic. One explanation for the decreased values is pesticide contamination had decreased in the area over 10 years. | |||
| Publication Number | 89-e01 | |||
| Author(s) | Cubbage, J. | |||
| Print Availability |
Not maintained in stock. Copy must be made from archive version.
| |||
| Number of pages | 11 pp. | |||
| Keywords | bioassay, pesticide, pesticides, sediment, study, survey, water, Willapa Bay | |||
| Subject Waterbodies |
| |||
This page last updated July 7, 2009
Copyright © Washington State Department of Ecology. See http://www.ecy.wa.gov/copyright.html.
