Seasonal evaluation and spatial variability of suspended particulate matter in the vicinity of a large coal-fired power station in India?A case study

2005 ◽  
Vol 102 (1-3) ◽  
pp. 1-13 ◽  
Author(s):  
Rajnikant Sharma ◽  
Yasmeen Pervez ◽  
Shamsh Pervez
Keyword(s):  
Particulate Matter ◽  
Spatial Variability ◽  
Suspended Particulate Matter ◽  
Power Station ◽  
Suspended Particulate

Mobilization of Mercury from Estuarine Suspended Particulate Matter: A Case Study in the Yalujiang Estuary, Northeast China

1995 ◽  
Vol 30 (1) ◽  
pp. 25-32 ◽  
Author(s):  
Chen Jingsheng ◽  
Tang Fei ◽  
Wang Feiyue
Keyword(s):  
Particulate Matter ◽  
Suspended Particulate Matter ◽  
Cross Sections ◽  
Northeast China ◽  
Field Observations ◽  
Suspended Material ◽  
Suspended Particulates ◽  
Suspended Particulate ◽  
Physical Mixing

Abstract Trace metal concentrations in suspended particulate matter in estuaries are dependent on the extent of mixing between river and seawater. Superimposed on this physical mixing, chemical mobilization from the particulates may take place. This paper presents the behavior of mercury in the Yalujiang estuary, northeast China. It deals with (i) field observations on the variations of mercury concentrations in the estuarine suspended material and (ii) the experimental mobilization of mercury from contaminated estuarine sediment by exposure to artificial seawater. Three stations on two cross sections in the upper and lower Yalujiang estuary were sampled over at least two or three complete tidal cycles. The field observations show that there is a clear mobilization of mercury from the suspended material during the maximum mixing of river and seawater. The experimental mobilization suggests that mobilization of mercury from the suspended particulates in seawater is caused not only by complexing with CI’ and ion-exchanging with the alkali and alkaline earth cations in seawater, but also by the dissolution of humic substances in the particles by seawater and the release of associated mercury.

Temporal and spatial variability of the suspended particulate matter in the Gdansk Deep and Eastern Gotland Basin

Baltica ◽  
2020 ◽  
Vol 33 (1) ◽  
pp. 35-45
Author(s):  
Vadim Sivkov ◽  
Ekaterina Bubnova
Keyword(s):  
Particulate Matter ◽  
Spatial Variability ◽  
Suspended Particulate Matter ◽  
Matter Distribution ◽  
The South ◽  
South Eastern ◽  
Suspended Particulate ◽  
Temporal And Spatial Variability ◽  
Temporal And Spatial ◽  
Particulate Matter Distribution

The work was carried out in the south-eastern part of the Baltic Sea on the meridional section along the Russian–Polish border during 2015–2018 using the CTD-sounding. The suspended particulate matter samples were taken with the use of ultrafiltration of sea water (0.4 micron filters). The research was focused on identifying the temporal and spatial variability of suspended particulate matter distribution after a series of inflows of the North Sea waters in 2014–2016. The vertical structure of the suspended particulate matter distribution in the south-eastern Baltic, both on a seasonal and interannual scale, contains the main features common for all marine basins, namely increased concentrations of SPM at the sea surface and bottom and an intermediate layer of minimum concentrations located at a depth of 50–70 m. Seasonal fluctuations in the SPM concentration are very significant and are mainly due to the seasonal variation of bioproduction in the surface layer of the sea and the flow of rivers. The confirmation of the barrier role of density boundaries (thermocline and halocline) in sedimentation and geochemical processes has not been obtained.

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