Contaminants in suspended sediment from the Fraser River basin
Conference
·
OSTI ID:398199
The concentrations of trace organic contaminants were measured in suspended sediment samples collected upstream and downstream of six pulp mills located in the Fraser River basin. Sampling occurred at three hydrological periods; fall low flow, winter base flow (under ice) and spring freshet. Suspended sediments were analyzed for dioxins, furans, chlorinated phenolics and polycyclic aromatic hydrocarbons. Initial results indicate that (i) trace organic contaminants are detectable in suspended sediments collected over 265 river kilometers downstream of the nearest pulp mill; (ii) the 1992 to 1994 levels of 2,3,7,8-TCD-dioxin and 2,3,7,8-TCD-furan in Fraser river suspended sediments are lower than the levels measured in 1990; (iii) there is a measurable increase in trace organic contaminant levels in Fraser River suspended sediments associated with the initial rise in the Fraser River hydrograph at freshet.
- OSTI ID:
- 398199
- Report Number(s):
- CONF-9511137--; ISBN 1-880611-03-1
- Country of Publication:
- United States
- Language:
- English
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