| |
Near-field
Environmental Effects
(<1km)
|
Far-field
Environmental Effects
(>1km)
|
| Short-term
Environmental Effects
(<1 week)
|
Dredging
Turbidity
Smothering/removal of organisms
Reduced water quality
|
Dredging
None generally expected
|
|
Disposal
Smothering of organisms
Turbidity
Reduced water quality
Acute chemical toxicity
|
Disposal
Offsite movements of chemicals
by physical transport
|
| Long-term
Environmental Effects
(>1 week)
|
Dredging
Disturbance by shipping traffic
Removal of contaminated sediment
|
Dredging
None generally expected
|
|
Disposal
Altered substrate type
Altered community structure
Chronic chemical toxicity
Bioaccumulation
|
Disposal
Offsite movements of chemicals
by physical transport and/or biota migration
|
