The sources of sediment
discussed in DF-0003 Phase I Study may be insufficient on their own to supply this amount of sediment
The aims of this study were (1) to determine the distribution of P-fractions in the surficial sediments
of the large shallow eutrophic Lake Peipsi, (2) to estimate the relationships between the P concentration dynamics in the sediment
surface and in the overlying water, (3) to assess the influence of [O.
One of the most important parameters which effect the strength of secondary flow and therefore sediment
entry is the vane angle relative to the flow direction.
Data from the study was used to develop models to predict the rate of alum application that would be needed to mitigate phosphorus release from contaminated sediments
, based on sediment
1994 and many others) were not as detailed; therefore, the probable deviations caused by the insufficient stabi lization of sediment
distribution could not be detected and studied.
They used techniques that can tell them whether the sediment
originated as channel and gully erosion, or as shallow sheet or rill erosion further up hillslopes.
Runoff from crop irrigation can cause sediment
, nutrients and pesticides to flow into surface waters, degrading their quality.
Both of these processes can be influenced by the physical characteristics of the bottom culture site, such as sediment
type, water temperature and current velocity.
As a result, the wetlands and barrier islands along Louisiana's coast, which were once regularly replenished by river sediment
, have begun to deteriorate--and disappear.
But they came up with several reasons why this particular area would lack sediment
Children are most at risk from exposure to the sediment
, he says, "because they are both closer to the ground and more susceptible to toxic exposures because of their developing status.
Health officials also anticipated a threat from contaminated sediment
in the days and weeks following the storm.
Use of sediment
quality guidelines and related tools for the assessment of contaminated sediments
If there is heavy rain there will be an increase in runoff and an increase in sediment
that can clog up the channels meant to keep flooding water out of homes and businesses in the city.
Most likely, there were volcanic events going on west of the region, and ash sediment
was constantly raining down, filling the lakes in the area.