scholarly journals Heavy metals contamination of river water and sediments in the mangrove forest ecosystems in Bangladesh: A consequence of oil spill incident

2021 ◽  
pp. 100484
Author(s):  
Tasrina Rabia Choudhury ◽  
Thamina Acter ◽  
Nizam Uddin ◽  
Masud Kamal ◽  
A.M. Sarwaruddin Chowdhury ◽  
...  
Keyword(s):  
Heavy Metals ◽  
River Water ◽  
Oil Spill ◽  
Mangrove Forest ◽  
Forest Ecosystems ◽  
Heavy Metals Contamination

scholarly journals Heavy Metals Contamination of River Water and Sediments in The Mangrove Forest Ecosystems in Bangladesh: A Consequence of Oil Spill Incident

2021 ◽  
Author(s):  
Tasrina Rabia Choudhury ◽  
Thamina Acter ◽  
Nizam Uddin ◽  
Masud Kamal ◽  
A.M. Sarwaruddin Chowdhury ◽  
...  
Keyword(s):  
Heavy Metals ◽  
River Water ◽  
Mangrove Forest ◽  
Quality Index ◽  
Forest Ecosystems ◽  
Contamination Factor ◽  
Degree Of Contamination ◽  
Sediment Samples ◽  
Water And Sediment ◽  
Heavy Metals Pollution

Abstract Oil spillage is one of the common pollution events of global water-soil ecosystems. A comprehensive investigation on heavy metals pollution of surface water and sediments was conducted after oil spill incident in Sela River and its tributaries of the Sundarbans mangrove forest ecosystems, Bangladesh. Water and sediment samples were collected from the preselected sampling points in Sela River, and the elemental (Pb, Cd, Cr, Co, Cu, Ni, Fe, As, Hg, Mn, Zn, Ca, Mg, Na, and K) analysis was done using atomic absorption spectrometer (AAS). This study revealed that the descending order for the average concentration of the studied elements were found to be Mg > Co > Na > Ni > K > Ca > Pb > Fe > Mn > Cr > Cd > Zn > Cu respectively, while As and Hg in water samples were found to be below detection limit (BDL). However, some of the toxic elements in the Sela River water samples were exceeded the permissible limit set by the World Health Organization (WHO) with a descending order of Co > Cd > Pb > Ni respectively. Based on the water quality index (WQI), metal pollution index (MPI), and metal quality index (MI), the Sela River water is not suitable for drinking but may be used for irrigating agricultural and vegetable crops. On the other hand, elemental concentration in the sediment samples were found to be the following descending order of Fe > Mg > Na > K > Ca > Mn > Zn > Cr > Cu > Pb > As > Cd respectively. Several pollution assessment indices: contamination factor (Cf), degree of contamination (Cd), modified degree of contamination (mCd), pollution load (PLI), enrichment factor (EF), geo-accumulation (Igeo) indices were followed to assess the sediment systems pollution in the study area. Considering sediment quality indices, this study revealed that the river sediment had higher contamination factor (Cf) values for Cd, moderate values for Pb, Cr, Cu, Zn, Mg, and As, and low values for Mn, Fe, Ca, Na, and K. Among the studied heavy metals, Cd content was highest in both water and sediment samples, which confirming that Cd, insoluble or suspended form, was more likely to be strongly deposited and bound in sediments from water. Principal component and correlation analyses suggested that the sources of heavy metals pollution were mainly anthropogenic along with the geogenic sources in the study area.

scholarly journals Assessment of heavy metals contamination in the Nile River water and adjacent sediments: A case study from Khartoum City and Nile River State, Sudan

2017 ◽  
Vol 6 (3) ◽  
pp. 285-285 ◽  
Author(s):  
Sulieman Ali ◽  
Jamal Elfaki ◽  
Mutwakil Adam ◽  
Mohammed Dafalla ◽  
Hager Ahmed ◽  
...  
Keyword(s):  
Heavy Metals ◽  
River Water ◽  
Nile River ◽  
Heavy Metals Contamination

INFLUENCE OF THE ECOLOGICAL STATE OF THE SEREPOK RIVER (VIETNAM) ON ACCUMULATION OF HEAVY METALS IN ORGANS OF FISH

2017 ◽  
pp. 98-105
Author(s):  
Ngo The Cuong ◽  
Tran Hoan Quoc ◽  
Svetlana Vasilievna Zolotokopova
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
River Water ◽  
Bottom Sediments ◽  
Heavy Metal Concentration ◽  
Industrial Areas ◽  
Industrial Regions ◽  
Cadmium Lead ◽  
Sarotherodon Galilaeus ◽  
Water Bottom

The article focuses on the study of change of containing heavy metals (zinc, copper, iron, cadmium, lead, arsenic) in the abiotic and biotic components of the Serepok river (Vietman) influenced by wastewater discharge from industrial areas. Heavy metal content was determined in the river water and bottom sediments in the four zones: above and within the boundaries of industrial regions Xoa Phu and Tam Thang and in two water reservoirs situated below the boundaries of those industrial areas. Tilapia Galilean ( Sarotherodon galilaeus ), Hemibagrus ( Hemibagrus ), and sazan ( Cyprinus carpio ) caught in these areas were the hydrobionts under study in which liver, gills, skeleton and muscles accumulation of heavy metals was detected. In the organs of fish caught in the river within industrial region, heavy metals concentration was 3-7 times higher. The greatest concentration of heavy metals was found in the liver and gills of fish caught in the boundaries of industrial regions, the least concentration was in the muscles. In most cases, significant correlation between heavy metal concentration in organs of fishes and in river water, bottom sediments has been revealed.

INFLUENCE OF AIR POLLUTION ON FOREST ECOSYSTEMS: ECOLOGICAL IMPACT OF HEAVY METALS

2010 ◽  
Vol 9 (10) ◽  
pp. 1401-1405
Author(s):  
Mihaela Budianu ◽  
Brindusa Mihaela Robu ◽  
Matei Macoveanu
Keyword(s):  
Heavy Metals ◽  
Air Pollution ◽  
Forest Ecosystems ◽  
Ecological Impact

SEASONAL INFLUENCE AND RISK ASSESSMENT OF HEAVY METALS CONTAMINATION IN GROUNDWATER, ARJAAT VILLAGE, MOROCCO

2016 ◽  
Vol 15 (3) ◽  
pp. 579-587 ◽  
Author(s):  
Maria-Ema Faciu ◽  
Francois Xavier Nshimiyimana ◽  
Souad El Blidi ◽  
Abdellah El Abidi ◽  
Abdelmajid Soulaymani ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Risk Assessment ◽  
Seasonal Influence ◽  
Heavy Metals Contamination

Rice cultivation in former rubber land without soil remediation contribute toxicity risk of heritable heavy metals contamination

2021 ◽  
Author(s):  
Diana Demiyah Mohd Hamdan ◽  
Mohd Khalizan Sabullah ◽  
Jovelyn Seludin ◽  
Amirah Syuhada Mohd Azman ◽  
Mohd Hamdan Adnan
Keyword(s):  
Heavy Metals ◽  
Soil Remediation ◽  
Rice Cultivation ◽  
Toxicity Risk ◽  
Heavy Metals Contamination

scholarly journals Acinetobacter tandoii ZM06 Assists Glutamicibacter nicotianae ZM05 in Resisting Cadmium Pressure to Preserve Dipropyl Phthalate Biodegradation

2021 ◽  
Vol 9 (7) ◽  
pp. 1417
Author(s):  
Xuejun Wang ◽  
Si Shen ◽  
Hao Wu ◽  
Haixia Wang ◽  
Lvjing Wang ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Heavy Metals ◽  
Microbial Consortia ◽  
Environmental Media ◽  
Degrading Bacterium ◽  
Coculture System ◽  
Heavy Metals Contamination ◽  
Metabolite Inhibition ◽  
Comparative Transcriptomic Analysis ◽  
Scanning Electron

Dipropyl phthalate (DPrP) coexists with cadmium as cocontaminants in environmental media. A coculture system including the DPrP-degrading bacterium Glutamicibacter nicotianae ZM05 and the nondegrading bacterium Acinetobacter tandoii ZM06 was artificially established to degrade DPrP under Cd(II) stress. Strain ZM06 relieved the pressure of cadmium on strain ZM05 and accelerated DPrP degradation in the following three ways: first, strain ZM06 adsorbed Cd(II) on the cell surface (as observed by scanning electron microscopy) to decrease the concentration of Cd(II) in the coculture system; second, the downstream metabolites of ZM05 were utilized by strain ZM06 to reduce metabolite inhibition; and third, strain ZM06 supplied amino acids and fatty acids to strain ZM05 to relieve stress during DPrP degradation, which was demonstrated by comparative transcriptomic analysis. This study provides an elementary understanding of how microbial consortia improve the degradation efficiency of organic pollutants under heavy metals contamination.

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