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Figure 2. Range of exposure durations that may be experienced by sessile organisms as a suspended-sediment plume passes in as... |
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 ERDC TN-DOER-E9
May 2000
Figure 2. Range of exposure durations that may be experienced by sessile organisms as a suspended-
sediment plume passes in association with a hypothetical hydraulic cutterhead dredging
project. The white bars depict estimated exposure durations based on selected pipeline
diameters and in situ sediment types
PROBABILITY OF DETRIMENTAL EFFECT
LOW CONCENTRATION,
HIGH CONCENTRATION,
LONG DURATION
LONG DURATION
LOW CONCENTRATION,
HIGH CONCENTRATION,
SHORT DURATION
SHORT DURATION
Figure 3. Categories of potential exposure to suspended sediments in the vicinity of a dredging operation
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