0951 - Sentinel bacteria identification on mangrove sediments polluted with heavy metals in the Northwest Coast of South America

Author(s):  
Juan Carlos Fernández Cadena
2006 ◽  
Vol 98 (1) ◽  
pp. 1-17 ◽  
Author(s):  
C. Marchand ◽  
E. Lallier-Vergès ◽  
F. Baltzer ◽  
P. Albéric ◽  
D. Cossa ◽  
...  

2017 ◽  
Vol 2017 ◽  
pp. 1-8 ◽  
Author(s):  
Kholoud Abou Seedo ◽  
Mohammad S. Abido ◽  
Ahmed A. Salih ◽  
Asma Abahussain

Accumulation of 8 heavy metals (HM), Cr, Cu, Fe, Mn, Mo, Ni, Pb, and Zn, was assessed in the leaves and sediments of gray mangrove (Avicennia marina (Forsk.) Vierh.) at three sites along Tubli Bay using Inductive Coupled Plasma Analyzer. The results showed no significant differences in HM contents in the leaves of mangroves between the sites except for Mo and Zn. HM concentrations (mg L−1) in leaves were in the following order: Fe > Zn > Mn > Mo > Cu > Ni > Cr. Significant differences existed between sediment content of Tubli site and the other two sites with regard to Cr, Cu, Pb, and Zn due to direct exposure of the site to wastewater outfalls. A general trend of decline in HM concentrations was noticeable from the top towards deeper sediment layers in all the sites of the study area. Concentration of HM in sediment was in the following order: Fe > Mn > Zn > Cu > Cr > Pb > Ni. HM concentration in sediments far exceeded the amount present in the leaves of the mangrove except for Ni. The amounts of HM in mangrove sediments were comparable to regional findings and fell within known sediment quality guidelines.


2012 ◽  
Vol 28 (5) ◽  
pp. 435-455 ◽  
Author(s):  
Lina L. Fernandes ◽  
G. N. Nayak

1992 ◽  
Vol 24 (8) ◽  
pp. 418-420 ◽  
Author(s):  
A.P. Mackey ◽  
M. Hodgkinson ◽  
R. Nardella

2017 ◽  
Vol 10 (4) ◽  
pp. 1 ◽  
Author(s):  
I Gusti Ngurah Putra Dirgayusa ◽  
Yulianto Suteja ◽  
Ida Bagus Putu Adnyana

Tukad Mati is one of the ten rivers has decreased due to the development of water quality screen printing and textile industries. Monitoring of the waters of the Tukad Mati has so far been confined to the Biological Oxygen Demand (BOD) and Chemical Oxygen Demand (COD) only. Whereas monitoring should be carried out thoroughly considering the heavy metal content is also harmful to users of water resources in Tukad Mati. One of the natural buffer of heavy metals in sediments of mangrove waters is a final media gathering all kinds of heavy metals waters, while mangrove itself is a natural sediment trap.Therefore, the heavy metals in the waters will experience the highest accumulation in mangrove sediments. The purpose of this study is as early monitoring to detect the chromium metal in waters and sediments in Tukad Mati estuary. In this study conducted in on-site data measurements in the form of data pH, temperature, salinity, disolved oxygen (DO) and discharge water. measurement of chromium content in the water and sediment of Tukad Mati estuary using AAS method.The study showed that from the results of on-site data measurements in estuary of Tukad Mati showed that the average value of salinity, pH, temperature and Dissolved Oxygen still meet quality ministerial decree of the environment of Indonesian Republic no 51 in 2004 for biota and marine tourism. The measurement results also showed that chromium content in water an average of 0.19 (mg/l) and exceed the ministerial decree of the environment of Indonesian Republic no 51 in 2004. Mangrove and non-mangrove sediments in Tukad Mati estuary have been exceed the Lowest Effect Level for organism and some sediment contaminated with chromium and passed the quality standards According to Canadian Council of Ministers of Environmental in 2000. Chromium concentration in sediment higer than water allegedly caused by heavy metals that tends to bind and fall to the bottom waters along the process of sedimentation.


2016 ◽  
Vol 216 ◽  
pp. 460-469 ◽  
Author(s):  
Lucélia Cabral ◽  
Gileno Vieira Lacerda Júnior ◽  
Sanderson Tarciso Pereira de Sousa ◽  
Armando Cavalcante Franco Dias ◽  
Luana Lira Cadete ◽  
...  

2003 ◽  
Vol 107 ◽  
pp. 333-336
Author(s):  
A. Correia ◽  
R. J. Delmas ◽  
R. Freydier ◽  
J. Simoes ◽  
J.-D. Taupin ◽  
...  

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