scholarly journals Role of Sediment Resuspension on Estuarine Suspended Particulate Mercury Dynamics

2018 ◽  
Vol 52 (14) ◽  
pp. 7736-7744 ◽  
Author(s):  
Emily A. Seelen ◽  
Grace M. Massey ◽  
Robert P. Mason
Keyword(s):  
Sediment Resuspension ◽  
Particulate Mercury ◽  
Suspended Particulate

scholarly journals Concentrations of TSP-Bound Metals in Four Urban Residential Locations in Seoul, Korea

2010 ◽  
Vol 10 ◽  
pp. 742-759 ◽  
Author(s):  
Hang Thi Nguyen ◽  
Chan Goo Park ◽  
Jin-A Kim ◽  
Je-Seung Lee ◽  
Jin-Hong Lee ◽  
...  
Keyword(s):  
Fossil Fuels ◽  
Road Dust ◽  
Asian Dust ◽  
Spring Season ◽  
Residential Areas ◽  
Residential Locations ◽  
Suspended Particulate ◽  
The Mean ◽  
Mean Concentration

Concentrations of 17 trace metals bound in total suspended particulate (TSP) were measured at four urban residential locations (Jong Ro [JR], Gwang Jin [GJ], Gang Seo [GS], and Yang Jae [YJ]) in Seoul, Korea from February to July 2009. The maximum concentrations of metals were recorded by Fe in the range of 2599 (JR) to 2914 ng m-3(GJ), while the least values were observed from Ag or Co with a few ng m-3. The relative ordering of the mean concentration (ng m-3) at these sites is generally found on the order of Fe > Zn > Ba > Mn > Pb > Cu > B > Cr > Ni > Sr >V > As > Li > Cd > Mo > Co > Ag or with a few exceptions (e.g., a reversal between Ba and Mn or between Ni and Sr). Calculation of the enrichment factor suggests the significant role of man-made processes on such metals as Cd, Zn, and Pb. Inspection of the temporal patterns indicates the peak occurrence of most metals during the spring season due in part to the Asian Dust (AD) event. However, according to the factor analysis, sources of these metals were dominated by both resuspended soil/road dust and the combustion of fossil fuels. The overall results of our study suggest that the interaction between the environmental conditions and roadside traffic activities are paramount in explaining the metal pollution in these urban residential areas.

A simple method to quantify sources of settling particles in lakes: Resuspension versus new sedimentation of material from planktonic production

1995 ◽  
Vol 46 (1) ◽  
pp. 223 ◽  
Author(s):  
GA Weyhenmeyer ◽  
M Meili ◽  
DC Pierson
Keyword(s):  
Particulate Matter ◽  
Sediment Resuspension ◽  
Strong Relationship ◽  
Simple Method ◽  
Inorganic Matter ◽  
Suspended Particulate ◽  
Lake Surface Area ◽  
Annual Means ◽  
Organic Particles ◽  
Different Sources

A strong relationship (r > 0.99) between settling particulate inorganic matter (SPIM) and total settling particulate matter (SPM) was observed in 315 samples from sedimentation traps in two Swedish lakes, Lake Erken and Lake Limmaren. This relationship can be used to distinguish between different sources of SPM in pelagic systems when the inflow of allochthonous particulate matter is negligible. It is possible to quantify the proportion of material from planktonic production as well as from sediment resuspension in the flux of settling or suspended particulate matter. Furthermore, fluxes of resuspended organic particles can be quantified and distinguished from fluxes of planktonic organic particles. Although Lake Erken and Lake Limmaren are quite different with respect to trophic level, lake surface area and water depth, the estimated proportion of resuspended particles in sedimentation traps was similar in both lakes. Resuspended particulate matter ranged from 35% of the total settling particulate matter up to 99%, with annual means of 83-94%. Moreover, for both lakes it was estimated that, even in epilimnetic traps, only 2046% (annual means) of the total organic settling particulate matter was from planktonic production, whereas 54-80% (annual means) was from sediment resuspension. This is likely to have important consequences for fluxes of nutrients and contaminants.

OILED SEDIMENTS IN THE HUMBER ESTUARY FOLLOWING THE SIVAND INCIDENT

1987 ◽  
Vol 1987 (1) ◽  
pp. 419-426 ◽  
Author(s):  
D. I. Little
Keyword(s):  
Biological Effects ◽  
Gas Liquid Chromatography ◽  
Oil Distribution ◽  
Suspended Particulate ◽  
Oil Concentration ◽  
Sediment Mobility ◽  
Oil Penetration ◽  
Spilled Oil ◽  
Good Drainage

ABSTRACT The Sivand oil spill of September 28, 1983, was unusual in that 6,000 t of crude oil were spilled in a highly turbid estuary. This study aimed to contribute to knowledge of spatial and temporal oil distribution and to examine its degradation. The role of suspended particulate matter (SPM) in the fate of oil is discussed, but the study concentrates on stranded oil in two sedimentologically distinct shorelines where ecological and conservation interests are high. The sites were Humberston Fitties, a sand flat, and Blacktoft Sand, a muddy shore in the inner estuary. Methods used were replicate sediment core sampling followed by gas liquid chromatography (GLC) and included ancillary sediment analyses. Soon after the spill, the sand total hydrocarbon (THC) concentration was greater than 50,000 ppm. Over 12 months this concentration decreased to about 3,000 ppm, as expected in coarser sediments. The muds were initially less contaminated (about 2,000 ppm), with only slight reductions in concentration over 12 months. However, there was strong evidence of sediment mobility at this site, and natural cleanup was in fact nearly complete after 9 months; the oil found at 12 months was due to transport of Sivand oil-contaminated muds from nearby reed beds. Good drainage at both sites permitted initial oil penetration. Root macropores at the muddy site encouraged penetration, weathering, and release of oil more easily than if it had been found in the sediment matrix. Sediment mobility at the muddy site contrasted with the firmness of the oiled sandflat, and contrary to vulnerability indices, may imply more rapid oil removal under some circumstances. Water washing was implicated as a major process in oil degradation at the sandy site, but no dramatic sediment turnover or erosion occurred that might have removed the oil. The steep gradients in oil concentration and composition with depth contrasted with the muddy site, where oil penetrated as a coherent mass via root macropores. The study illustrates the importance of sedimentological factors in the fate, effects, and mass balance of spilled oil. Published work on the Sivand has emphasized the effectiveness of cleanup and the lack of biological effects, but may have underestimated the amount of oil trapped in sediments.

The role of a lowland reservoir in the transport of micropollutants, nutrients and the suspended particulate matter along the river continuum

2012 ◽  
Vol 43 (4) ◽  
pp. 400-411 ◽  
Author(s):  
Magdalena Urbaniak ◽  
Edyta Kiedrzyńska ◽  
Maciej Zalewski
Keyword(s):  
Particulate Matter ◽  
Suspended Particulate Matter ◽  
Dry Weight ◽  
Middle Section ◽  
River Continuum ◽  
Water And Sediment ◽  
Sampling Locations ◽  
Suspended Particulate ◽  
Lowland Reservoir

The water and sediment samples from the Sulejow Reservoir and Pilica River (Central Poland) were analysed for nutrients: total phosphorus (TP), total nitrogen (TN) and the suspended particulate matter (SPM) and dioxin-like PCBs (dl-PCBs) concentration. Dl-PCBs were detected in sediments from all seven sampling locations with mean concentrations of 14.29 ng kg−1 dry weight (d.w.). The lowest concentration was recorded in the sediment collected below the Sulejow Reservoir (PR5; 2.92 ng kg−1 d.w.) and the highest in the sample collected from the mouth section of the Pilica River (PR7; 26.30 ng kg−1 d.w.). The 29% reduction of the total dl-PCBs concentration – from 9.21 ng kg−1 d.w. in the middle section to 6.54 ng kg−1 d.w. in the dam section of the Sulejow Reservoir – demonstrated the hydraulic transport and deposition of measured pollutants in the reservoir's sediments. The results obtained also revealed the reduction of nutrients and the SPM concentrations. A 45% reduction of SPM, 28% reduction of TP and 34% of TN was observed between the water inflow and outflow from the Sulejow Reservoir.

Role of Sediment Resuspension in the Remobilization of Particulate-Phase Metals from Coastal Sediments

2007 ◽  
Vol 41 (7) ◽  
pp. 2282-2288 ◽  
Author(s):  
Linda H. Kalnejais ◽  
William R. Martin ◽  
Richard P. Signell ◽  
Michael H. Bothner
Keyword(s):  
Sediment Resuspension ◽  
Coastal Sediments ◽  
Particulate Phase

The role of sediment resuspension duration in release of PAHs

2008 ◽  
Vol 53 (18) ◽  
pp. 2777-2782 ◽  
Author(s):  
JingLan Feng ◽  
ZhenYao Shen ◽  
JunFeng Niu ◽  
ZhiFeng Yang
Keyword(s):  
Sediment Resuspension
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