scholarly journals Heavy Metals Contamination of a Mediterranean Coastal Ecosystem, Eastern Nile Delta, Egypt

10.5772/26365 ◽  
2012 ◽  
Author(s):  
M. F. ◽  
H.A. Aboulela ◽  
H. A. ◽  
H. Ezz
Keyword(s):  
Heavy Metals ◽  
Nile Delta ◽  
Coastal Ecosystem ◽  
Heavy Metals Contamination

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.

Assessment of Heavy Metals Pollution in Sediments from Aha Lake, China

2012 ◽  
Vol 554-556 ◽  
pp. 1913-1918
Author(s):  
Feng Liu ◽  
Ji Wei Hu ◽  
Xian Fei Huang ◽  
Jing An Chen ◽  
Li Ya Fu ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Industrial Effluent ◽  
Principal Component ◽  
Secondary Phase ◽  
Primary Phase ◽  
Point Source Pollution ◽  
Residual Phase ◽  
Heavy Metals Contamination ◽  
Mining Wastewater ◽  
Aha Lake

Assessment of the pollution for the selected six heavy metals (Pb, Cu, Zn, Fe, Mn and Ni) in ten surface sediments sampled from Aha Lake in a dry season was made in the present investigation. Principal component analysis (PCA) was used to assess the sources of the heavy metals contamination and two components were extracted. Analysis of the lake characteristics and point source pollution revealed that the discharge of industrial effluent and coal mining wastewater were the possible sources of these heavy metals contamination. Based on the speciation characteristics of heavy metals in sediments, the method ratio of secondary phase to primary phase (RSP) was applied to evaluate the loadings and the bioavailability of these heavy metals. The RSP evaluation exhibited that Pb, Zn, Fe, Mn and Ni were mainly associated with Fe-Mn oxides besides residual phase, while Cu mainly existed in organic phase and residual phase. In summary, the potential risk posed to the lake caused by the heavy metals was high and descended in the order of Mn > Ni > Zn > Pb > Cu > Fe.

scholarly journals Investigation and Risk Assessment of Heavy Metals Contamination around an Abandoned Metal Mine in Korea

2010 ◽  
Vol 36 (6) ◽  
pp. 456-464 ◽  
Author(s):  
Jong-Wha Lee ◽  
Soon-Sun Kwak ◽  
Sung-Chul Hong ◽  
Sang-Il Park ◽  
Bong-Ki Jang
Keyword(s):  
Heavy Metals ◽  
Risk Assessment ◽  
Metal Mine ◽  
Abandoned Metal Mine ◽  
Heavy Metals Contamination
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