The influence of heavy metals, polyaromatic hydrocarbons, and polychlorinated biphenyls pollution on the development of antibiotic resistance in soils

2018 ◽  
Vol 25 (10) ◽  
pp. 9283-9292 ◽  
Author(s):  
Andrey Vladimirovich Gorovtsov ◽  
Ivan Sergeevich Sazykin ◽  
Marina Alexandrovna Sazykina
Keyword(s):  
Heavy Metals ◽  
Antibiotic Resistance ◽  
Polychlorinated Biphenyls ◽  
Polyaromatic Hydrocarbons

scholarly journals Contamination of Heavy Metals, Polychlorinated Dibenzo-p-Dioxins/Furans and Dioxin-Like Polychlorinated Biphenyls in Wharf Roach Ligia spp. In Japanese Intertidal and Supratidal Zones

2021 ◽  
Vol 11 (4) ◽  
pp. 1856
Author(s):  
Masato Honda ◽  
Xuchun Qiu ◽  
Suzanne Lydia Undap ◽  
Takeshi Kimura ◽  
Tsuguhide Hori ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Polychlorinated Biphenyls ◽  
Limit Of Detection ◽  
Environmental Pollutants ◽  
Dry Weight ◽  
Polychlorinated Dibenzofurans ◽  
Environmental Indicator ◽  
Pollution Levels ◽  
Copper Zinc ◽  
Total Concentrations

We investigated the pollution levels of 6 heavy metals and 29 dioxins (polychlorinated dibenzo-p-dioxins (PCDDs), polychlorinated dibenzofurans (PCDFs), and dioxin-like polychlorinated biphenyls (DL-PCBs)) in intertidal and supratidal zones by using wharf roaches (Ligia spp.) collected from 12 sampling sites on the coast of Northeast Japan from November 2011 to June 2012. The total concentrations of heavy metals ranged from 177 to 377 µg/g-dry weight (dw), and the predominant metals were copper, zinc, and aluminum. The order of the detected level of heavy metals was zinc > aluminum > copper > cadmium > lead > chromium, and this trend was similar to a previous report. The total toxic equivalent (TEQ) value of the PCDD/Fs ranged from less than the limit of detection (<LOD) to 2.33 pg-TEQ/g-dw, and the predominant congener was octachlorodibenzodioxin (<LOD to 110 pg/g-dw). Compared with PCDD/Fs, DL-PCBs were detected at a predominantly higher level (total TEQ value: 0.64–27.79 pg-TEQ/g-dw). Detected levels of dioxins, especially DL-PCBs in the wharf roach, were like those in the bivalves. These results indicate that the wharf roach could reflect heavy metals and dioxin pollution in the supratidal zones and is a suitable environmental indicator for these environmental pollutants. This is the first study to investigate heavy metals, PCDD/Fs, and DL-PCBs pollution in coastal isopods in Japan.

PCBs and PAHs Restrain the Use of Sludge as a Renewable Resource

2014 ◽  
Vol 1001 ◽  
pp. 162-170
Author(s):  
Radmila Kučerová ◽  
Tomáš Sezima ◽  
Eugen Sikora ◽  
Ivana Truxová ◽  
Lucie Kučerová ◽  
...  
Keyword(s):  
Sewage Sludge ◽  
Polychlorinated Biphenyls ◽  
Laboratory Experiment ◽  
Pseudomonas Putida ◽  
Polyaromatic Hydrocarbons ◽  
Renewable Resource ◽  
Bacterial Cultures ◽  
Pure Bacterial Cultures

The aim of this research is to reduce the quantities of polyaromatic hydrocarbons (PAHs) and polychlorinated biphenyls (PCBs) in the samples of non-hygienized sewage sludge via laboratory biodegradation. Pure bacterial cultures of Pseudomonas putida, Rhodococcus sp. and their mixture in 1:1 proportion have been used. The laboratory experiment lasted for 28 days and the acquired values were compared with Decree 294/2005 Coll. The obtained results imply that biodegradation of such contaminated samples is practicable. Using the bacterial mixture, over 85 % Σ of PCBs were degraded, and applying Rhodococcus sp. as much as 95.86 % of the original concentration of PAHs were removed.

scholarly journals Association of Antibiotic and Heavy Metal Resistant Bacteria Screened from Wastewater

2018 ◽  
Vol 7 (1) ◽  
pp. 28-40
Author(s):  
Bikram Gautam ◽  
Rameshwar Adhikari
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Antibiotic Resistance ◽  
Treatment Plant ◽  
Resistance Pattern ◽  
Resistant Bacteria ◽  
Grab Sampling ◽  
Antibiotic Resistance Pattern ◽  
Antibiotic Susceptibility Test ◽  
Heavy Metal Resistant

Wastewater treatment plant is a potential reservoir contributing to the evolution and spread of heavy metal and antibiotic resistant bacteria. The pollutants such as biocides, antibiotics, heavy metals are to be feared for as they have been known to evoke resistance in microorganisms in such polluted environment. The aim of this study was to the isolate bacteria from the treated wastewater and assess the resistance pattern of the isolates against antibiotics and heavy metals. Grab sampling was performed from April to June 2017, from the treated effluent from the secondary treatment plant. To assess the resistance pattern for antibiotic(s) and heavy metal(s), antibiotic susceptibility test and minimum inhibitory concentration by cup well method were performed respectively. Staphylococcus aureus, Enterococcus faecalis, Citrobacter freundii, Escherichia coli, Enterobacter aerogenes, Proteus mirabilis, P. vulgaris, Salmonella Typhi, Pseudomonas aeruginosa were isolated. Multi drug and heavy metal resistant isolates were screened. Fisher’s exact test revealed that there is a significant association (p< 0.001) between antibiotic resistance pattern and resistance patterns at dilution of 2500 g/L (25%). Cramer’s V test revealed that the effect size of antibiotic resistance pattern and heavy metal resistance pattern at dilution 2500 g/L is medium. P. aeruginosa was able to resist the metal concentration up to 10000 g/L (100%) dilution of Fe++. Heavy metal resistant bacteria can be safely used to lower chemical concentration in the environment once their harmful genes are edited, knocked etc. so that risks of evoking antibiotic resistance could be minimized. 

scholarly journals Genodiversity of dominant Rhizobium leguminosarum bv. Trifolii isolated from 11 types of soil in Serbia

Genetika ◽  
2008 ◽  
Vol 40 (2) ◽  
pp. 179-190 ◽  
Author(s):  
Dragana Josic ◽  
Bogic Milicic ◽  
Snezana Mladenovic-Drinic ◽  
Mirjana Jarak
Keyword(s):  
Heavy Metals ◽  
Antibiotic Resistance ◽  
Geographical Distribution ◽  
Environmental Conditions ◽  
Trifolium Repens ◽  
Rhizobium Leguminosarum ◽  
Trifolium Pratense ◽  
Field Isolates ◽  
Rapd Fingerprinting ◽  
Natural Isolates

Rhizobium leguminosarum bv. trifolii is microsymbiont Trifolium pratense and Trifolium repens, which are very important legumes in Serbia. The natural nodulating population of those bacteria was collected and estimated biodiversity distribution by monitoring dominant genotypes of these bacteria. The population of Rhizobium leguminosarum bv. trifolii were collected from 50 marked locations of 11 types of soil in Serbia. 437 natural isolates, rescued from nodules of Trifolium repens or Trifolium pratense, were analyzed by phenotypic approach. We obtained 156 different isolates on the basis of differences in their IAR - intrinsic antibiotic resistance (five antibiotics) and HMT- heavy methal tolerance (five heavy metals). We investigated 56 dominant isolates with more than three differences in IAR-HMT patterns by REP-PCR and RAPD fingerprinting (AP10 and SPH 1 primers). The results showed genodiversity of dominant Rhizobium leguminosarum bv. trifolii field isolates and offered the possibility to assess their changes on marked locations during time and under different environmental conditions and geographical distribution.

scholarly journals An Environmental Friendly Perspective of Microbial Degradation

2018 ◽  
Vol 3 (2) ◽  
Keyword(s):  
Heavy Metals ◽  
Polychlorinated Biphenyls ◽  
Microbial Degradation ◽  
Aromatic Hydrocarbons ◽  
Environmental Conditions ◽  
Cost Effective ◽  
Environmental Friendly ◽  
Naturally Occurring ◽  
Degradation Of Pollutants ◽  
Poly Aromatic Hydrocarbons

In the recent years attempt to find cost-effective and ecological ways to deal with noxious waste led mankind to focus on the use of microbes for the degradation of pollutants. These environmental friendly remediation methods employs the microbial naturally occurring catabolic capabilities to alter, vitiate or accrue a large number of pollutants including poly aromatic hydrocarbons, polychlorinated biphenyls, radio nuclides ,heavy metals etc. High-through put analyses of environmentally relevant microbes provides an insight of their major degradative pathways as well as their competence to acclimate to altering environmental conditions.

Novel aspects for management of xenobiotic compounds in wastewater treatment plants – linking theory, field studies, regulation, engineering, and experience

2000 ◽  
Vol 42 (7-8) ◽  
pp. 315-322 ◽  
Author(s):  
B. N. Jacobsen ◽  
T. Guildal
Keyword(s):  
Heavy Metals ◽  
Antibiotic Resistance ◽  
Organic Compounds ◽  
Endocrine Disruption ◽  
Wastewater Treatment Plants ◽  
Environmental Contaminants ◽  
Environmental Issues ◽  
Field Studies ◽  
Future Research ◽  
Order Of Magnitude

Management aspects for control of environmental contaminants has widened from being focussed on heavy metals to a broader approach including specific organic compounds, inhibition of sensitive bacteria or algae, and newly identified environmental issues, e.g., endocrine disruption and antibiotic resistance. Studies conducted at the Avedøre WWTP confirm the relevance of such newly discovered environmental problems, however, the order of magnitude of the effects do not seem alarming. It is recommended in future research to establish links between occurrence of specific organic compounds and heavy metals to various measures of toxicity and bioaccumulation. Also data for specific biodegradation rates in WWTPs represent a bottleneck for simulating fate of specific organic compounds in the plants.

Sign in / Sign up

Export Citation Format

Share Document