Mercury uptake from contaminated water and sediment by the rooted and submerged aquatic macrophyte Eriocaulon septangulare

1994 ◽  
Vol 26 (3) ◽  
Author(s):  
M. Coquery ◽  
P.M. Welbourn
Keyword(s):  
Aquatic Macrophyte ◽  
Contaminated Water ◽  
Water And Sediment ◽  
Mercury Uptake

scholarly journals Effect of polluted water on soil and plant contamination by heavy metals in El-Mahla El-Kobra, Egypt

Solid Earth ◽  
2016 ◽  
Vol 7 (2) ◽  
pp. 703-711 ◽  
Author(s):  
Esawy Kasem Mahmoud ◽  
Adel Mohamed Ghoneim
Keyword(s):  
Heavy Metals ◽  
Cynodon Dactylon ◽  
Oxygen Demand ◽  
Polluted Water ◽  
Contaminated Water ◽  
Water And Sediment ◽  
Bioaccumulation Coefficient ◽  
The Mean ◽  
Very High ◽  
Irrigated Soils

Abstract. The discharge of untreated waste water in Zefta drain and drain no. 5 is becoming a problem for many farmers in the El-Mahla El-Kobra area, Egypt. The discharged water contains high levels of contaminants considered hazardous to the ecosystem. Some plants, soil, water, and sediment samples were collected from the El-Mahla El-Kobra area to evaluate the contamination by heavy metals. The results showed that the heavy metals, pH, sodium adsorption ratio (SAR), biochemical oxygen demand (BOD), and chemical oxygen demand (COD) in the water of Zefta drain and drain no. 5 exceeded permissible limits for irrigation. In rice and maize shoots grown in soils irrigated by contaminated water from Zefta drain and drain no. 5, the bioaccumulation factors for Cd, Pb, Zn, Cu, and Mn were higher than 1.0. The heavy metals content of irrigated soils from Zefta drain and drain no. 5 exceeded the upper limit of background heavy metals. In this study, the mean contaminant factor values of the drain no. 5 sediments revealed that Zn, Mn, Cu, Cd, Pb, and Ni > 6, indicating very high contamination. The bioaccumulation coefficient values of Cynodon dactylon, Phragmites australis, and Typha domingensis aquatic plants growing in Zefta drain are high. These species can be considered as hyperaccumulators for the decontamination of contaminated water.

TOXICITY OF THE INSECTICIDE PERMETHRIN IN WATER AND SEDIMENT TO NYMPHS OF THE BURROWING MAYFLY HEXAGENIA RIGIDA (EPHEMEROPTERA: EPHEMERIDAE)

1983 ◽  
Vol 115 (8) ◽  
pp. 1007-1014 ◽  
Author(s):  
M. K. Friesen ◽  
J. F. Flannagan ◽  
T. D. Galloway
Keyword(s):  
Dry Weight ◽  
Contaminated Water ◽  
Lethal Effects ◽  
Water And Sediment ◽  
Burrowing Mayfly

AbstractThe 6 LC50 for nymphs of Hexagenia rigida exposed to permethrin-contaminated water without sediment was estimated to lie between 0.58 and 2.06 μg/L. No nymphs survived a 6 h exposure to 7.63 μg/L. Laboratory simulated application of 7.3 g/ha permethrin to H. rigida nymphs in culture resulted in a final mortality of 88.0 ± 15.2% after a 1-day exposure, and 100.0% after a 7 day exposure; initial permethrin concentrations in water were estimated to be 7.63 μg/L and maximum mean concentrations in sediment, measured 1 and 7 days after application, were estimated to be approximately 50 μg/kg dry weight. Exposure of nymphs to sediment contaminated 8 days previously resulted in 100.0% mortality. An application of 0.6 g/ha resulted in final mortality of up to 45.0 ± 4.1%. Lethal effects occurred in some cases between 1 and 4 and possibly up to 10 weeks after application.

Phytoremediation of heavy metal-contaminated water and sediment by Eleocharis acicularis

2011 ◽  
Vol 39 (8) ◽  
pp. 735-741 ◽  
Author(s):  
Masayuki Sakakibara ◽  
Yuko Ohmori ◽  
Nguyen Thi Hoang Ha ◽  
Sakae Sano ◽  
Koichiro Sera
Keyword(s):  
Heavy Metal ◽  
Contaminated Water ◽  
Water And Sediment

scholarly journals Assessment of physiochemical, heavy metal and indicator bacterial groups in water and soil samples of different oil contaminated regions, Tiruchirappalli city

2016 ◽  
Vol 2 (7) ◽  
pp. 146
Author(s):  
C. Vinothini ◽  
R. Ravikumar
Keyword(s):  
Heavy Metal ◽  
Continuous Monitoring ◽  
Soil Samples ◽  
Contaminated Water ◽  
Sediment Samples ◽  
Water And Sediment ◽  
Water And Soil Samples ◽  
Bacterial Groups ◽  
Water And Sediment Samples

The levels of physiochemical, heavy metal and microbiological pollution in different oil contaminated regions of Tiruchirappalli city were reported in the study. The water and sediment samples from four different oil contaminated regions in Tiruchirappalli city were collected during monsoon 2015. The sampling regions were divided into two category such as heavy oil contaminated regions (oil shed / oil washed regions) and bus stand regions. In oil contaminated water sample, counts of TVC, TC, TS, FC, FS, VC, SAC, SHC and PC were in the range of 21300 126000, 1620 13200, 240 1050, 250 1130, 100 250, 120 180, 80 160, 130 200 and 260 560 CFU/mL, respectively. In soil sample, the TVC, TC, TS, FC, FS, VLO, SC and PC ranges were 56000 218000, 3100 14800, 350 1260, 330 1420, 150 300, 110 240, 120 200, 160 260 and 410 1060 CFU/g, respectively. The results of this study indicated that oil shed regions gor higher pollutions tha bus stand regions. This study gave a special emphasis on the determination of the levels of pollution and also identified the vulnerable regions. Hence, throughout impoundment and continuous monitoring is needed.

Phytoremediation of Sb, As, Cu, and Zn from Contaminated Water by the Aquatic Macrophyte Eleocharis acicularis

2009 ◽  
Vol 37 (9) ◽  
pp. 720-725 ◽  
Author(s):  
Nguyen Thi Hoang Ha ◽  
Masayuki Sakakibara ◽  
Sakae Sano
Keyword(s):  
Aquatic Macrophyte ◽  
Contaminated Water ◽  
Cu And Zn

scholarly journals Photosynthetic rate of the aquatic macrophyte Egeria densa Planch. (Hydrocharitaceae) in two rivers from the Itanhaém River Basin in São Paulo State, Brazil

2004 ◽  
Vol 47 (1) ◽  
pp. 153-162 ◽  
Author(s):  
Maura Maria Pezzato ◽  
Antonio Fernando Monteiro Camargo
Keyword(s):  
River Basin ◽  
Photosynthetic Rate ◽  
Aquatic Macrophyte ◽  
Electric Energy ◽  
Egeria Densa ◽  
Gross Photosynthesis ◽  
Paulo State ◽  
Total Phosphorous ◽  
Water And Sediment ◽  
Multiple Uses

Egeria densa is a submerged aquatic macrophyte which, in Brazil, causes problems specially for electric energy generation. The purpose of this study was to evaluate the photosynthetic rate of E. densa in two rivers (Aguapeú and Mambu) with different limnological features, both located in the Itanhaém River Basin. This species is abundant in both rivers without causing damages to their multiple uses. Photosynthetic rates were analysed in February, May, August and November 1998 and limnological variables of the water and sediment were also measured. The highest value of gross photosynthesis (GP) was detected in May (10.06 in Aguapeú and 6.10 mgO2/gDW/h in Mambu), when under-water photosynthetic active radiation (PAR) was also high (1,126.7 and 895.8 m mol/m/s, respectively). GP, total phosphorous, total CO2 and PAR were always higher in Aguapeú River.

Bioaccumulation of Mercury in Fish Exposed to Experimentally Contaminated Water and Sediment

2006 ◽  
Vol 77 (6) ◽  
pp. 854-860 ◽  
Author(s):  
S. de Carvalho ◽  
J. V. Lombardi ◽  
M. J. T. R. Paiva ◽  
J. G. de França-Monkolski ◽  
J. R. Ferreira
Keyword(s):  
Contaminated Water ◽  
Water And Sediment ◽  
Mercury In Fish

Accumulation of cadmium from contaminated water and sediment by the shrimp Callianassa australiensis

1984 ◽  
Vol 82 (2) ◽  
pp. 191-197 ◽  
Author(s):  
M. Ahsanullah ◽  
M. C. Mobley ◽  
D. S. Negilski
Keyword(s):  
Contaminated Water ◽  
Water And Sediment
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