scholarly journals Effect of soil pollution with polycyclic aromatic hydrocarbons on the properties of humic acids

2014 ◽  
Vol 14 (6) ◽  
pp. 1169-1178 ◽  
Author(s):  
Magdalena Banach-Szott ◽  
Bożena Debska ◽  
Ewa Rosa
Keyword(s):  
Polycyclic Aromatic Hydrocarbons ◽  
Soil Pollution ◽  
Humic Acids ◽  
Aromatic Hydrocarbons ◽  
Polycyclic Aromatic

scholarly journals Isolation and characterization of bacteria with multiple traits: Hydrocarbon degradation, antibiotic-resistant and metal tolerant

2019 ◽  
Vol 10 (4) ◽  
pp. 3789-3795 ◽  
Author(s):  
Neeta Bhagat ◽  
Pranita Roy ◽  
Sohini Singh ◽  
Tanu Allen
Keyword(s):  
Heavy Metals ◽  
Polycyclic Aromatic Hydrocarbons ◽  
Soil Pollution ◽  
Aromatic Hydrocarbons ◽  
Well Being ◽  
Antibiotic Resistant ◽  
Morphological Studies ◽  
Isolation And Characterization ◽  
Degrading Bacteria ◽  
Polycyclic Aromatic

Increasing soil pollution all over the world has instigated global concerns as enormous quantities of toxic chemicals and heavy metals like cadmium, lead, mercury, petrochemicals, insecticides, polycyclic aromatic hydrocarbons (PAHs) and chlorophenols are finding their way into the environment, affecting the land and soil, causing soil pollution and thus posing a threat and menace to health and well- being of people and ecosystem. The ubiquitous dissemination, low bioavailability, high perseverance of contaminants like poly-hydrocarbon and metals in soil have the potentially destructive effects to human health, envisages to study the biodegradation of PAHs (polycyclic aromatic hydrocarbons) and PACs (polycyclic aromatic compounds). The diversity of micro-organisms that diminish the PAHs/PACs can be utilized in the advancement of bioremediation techniques. The role of metal-tolerant, (PAH)-degrading bacteria helps in the biodegradation of organic compounds at miscellaneous polluted sites. The isolation of (PAHs)-degrading bacteria from contaminated soil samples collected from garages and petrol pumps of Delhi and NCR region was carried out in the present study.  Also, the bacterial samples were tested for the tolerance towards 4 heavy metals- arsenic (As), lead (Pb), cadmium (Cd), and mercury (Hg). Morphological studies and biochemical tests were conducted to find the genera of the bacterial samples. The study indicates that hydrocarbons were degraded by the isolates P1, P2, P4, P5, P5*, G1, G3. These isolates were also found to be tolerant at a high concentration of metals (Arsenic, Cadmium, Mercury, and Lead) as minimum inhibitory concentration (MIC) was also calculated. Antibiotic susceptibility of the isolates was tested against various antibiotics. Thus the study suggests that the isolates identified as Pseudomonas aeruginosa, Acinetobacter baumanii, and Klebsiella pneumoniae are not only PAH-degrading but metal-tolerant and antibiotic-resistant too and are of immense potential for bioremediation of contaminated soils.

Binding of natural humic matter to polycyclic aromatic hydrocarbons in rivers of the Southeastern United States

1994 ◽  
Vol 30 (10) ◽  
pp. 199-205 ◽  
Author(s):  
James J. Alberts ◽  
Cheryl Griffin ◽  
Katherine Gwynne ◽  
Gordon J. Leversee
Keyword(s):  
Polycyclic Aromatic Hydrocarbons ◽  
Humic Acids ◽  
Aromatic Hydrocarbons ◽  
Southeastern United States ◽  
Binding Constants ◽  
Molecular Size ◽  
Fulvic Acids ◽  
Humic Matter ◽  
Polycyclic Aromatic ◽  
Molecular Size Distribution

The binding constants (Koc) of four polycyclic aromatic hydrocarbons (PAH) were determined for sedimentary fulvic and humic acids and the dissolved organic carbon (DOC) of five rivers in Georgia, USA. The log Koc for the PAH ranged: anthracene, 4.63-5.57; phenanthrene, 4.58-5.62; pyrene, 4.90-5.65; benzo(a)pyrene, 3.48-5.20. Log Koc values for the PAH compounds with riverine DOC were very similar for all rivers and more closely resembled those of sedimentary humic acids than the fulvic acids. The molecular size distribution of the riverine DOC indicates that >75% of the DOC occurs in size fractions >10,000 daltons. Despite similarities in Koc, there appear to be inter-river differences in the distribution of PAH among molecular size classes of the DOC, which have ramifications for water quality both in rivers and estuaries.

Binding of polycyclic aromatic hydrocarbons by humic acids formed during composting

2009 ◽  
Vol 157 (1) ◽  
pp. 257-263 ◽  
Author(s):  
César Plaza ◽  
Baoshan Xing ◽  
José M. Fernández ◽  
Nicola Senesi ◽  
Alfredo Polo
Keyword(s):  
Polycyclic Aromatic Hydrocarbons ◽  
Humic Acids ◽  
Aromatic Hydrocarbons ◽  
Polycyclic Aromatic

Humic acids-based one-step fabrication of SERS substrates for detection of polycyclic aromatic hydrocarbons

The Analyst ◽  
2013 ◽  
Vol 138 (5) ◽  
pp. 1523 ◽  
Author(s):  
Lu-Lu Qu ◽  
Yuan-Ting Li ◽  
Da-Wei Li ◽  
Jin-Qun Xue ◽  
John S. Fossey ◽  
...  
Keyword(s):  
Polycyclic Aromatic Hydrocarbons ◽  
Humic Acids ◽  
Aromatic Hydrocarbons ◽  
Sers Substrates ◽  
Polycyclic Aromatic ◽  
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