scholarly journals Effect of Respirable Suspended Particulate Matter on Blood Pressure of Sand Stone Mine Workers: A case study

2014 ◽  
Vol 8 (10) ◽  
pp. 21-25
Author(s):  
Banna Ram Panwar ◽  
◽  
Dr. Saroj Panwar ◽  
Dr. Suresh Kumar Singh
Keyword(s):  
Blood Pressure ◽  
Particulate Matter ◽  
Suspended Particulate Matter ◽  
Suspended Particulate ◽  
Respirable Suspended Particulate Matter ◽  
Mine Workers

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.

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