Antibiotics pollution in Jiulong River estuary: Source, distribution and bacterial resistance

Zheng, Shu-Fa; Qiu, Xiaoyan; Chen, Bin; Yu, Xi; Liu, Zhenghua; Zhong, Guopei; Li, Hengyang; Chen, Meng; Sun, Guifan; Huang, Hao; Yu, Weiwei; Freestone, David

doi:10.1016/j.chemosphere.2011.04.076

Cited by 130 publications

(43 citation statements)

References 36 publications

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“…This phenomenon might reflect the widespread use of sulfonamides in this region [19]. Furthermore, ARGs could be transferred between bacteria through transposons, plasmids and integrons [44]. Xu observed that the abundances of ARGs were significantly correlated to the levels of mobile genetic elements, indicating that intI-1 and transposons may contribute to the abundances of ARGs in drinking water [45].…”

Section: Discussionmentioning

confidence: 78%

Occurrence, Seasonal Variation and Risk Assessment of Antibiotics in Qingcaosha Reservoir

Jiang

et al. 2018

Water

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Qingcaosha Reservoir is an important drinking water source in Shanghai. The occurrence of five groups of antibiotics was investigated in the surface water of this reservoir over a one-year period. Seventeen antibiotics were selected in this study based on their significant usage in China. Of these antibiotics, 16 were detected, while oxytetracycline was not detected in any sampling site. The detected frequency of tylosin was only 47.92% while the other 15 antibiotics were above 81.25%. The dominant antibiotic was different in four seasons: norfloxacin was dominant in spring, and penicillinV was dominant in summer, autumn and winter, with medium concentrations of 124.10 ng/L, 89.91 ng/L, 180.28 ng/L, and 216.43 ng/L, respectively. The concentrations and detection frequencies of antibiotics were notably higher in winter than in other seasons, demonstrating that low temperature and low flow may result in the persistence of antibiotics in the aquatic environment. Risk assessment suggested that norfloxacin, ciprofloxacin, penicillinV, and doxycycline in the surface water presented high ecological risks.

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Section: Discussionmentioning

confidence: 78%

Occurrence, Seasonal Variation and Risk Assessment of Antibiotics in Qingcaosha Reservoir

Jiang

et al. 2018

Water

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“…Similarly, heavy rainfall events reduced pharmaceutical concentrations in Jamaica Bay, a wastewater impacted estuary [20]. Conversely, Zheng et al [58] and Qi et al [21] reported increased river water concentrations of antibiotics in China during the wet season and attributed the increased concentrations to increased runoff of veterinary medicines and decreased efficiency of WWTPs due to increased wastewater flow. Temporal trends in pharmaceutical concentrations were not observed in Southern California coastal waters with relatively constant year-round temperatures [59].…”

Section: (I) Seasonal Trendsmentioning

confidence: 99%

“…Factors reported to increase concentrations of pharmaceuticals in seawater and sediment include proximity to WWTP outfalls [67,68], higher effluent outflows [69], size of the urban area and population [11,70,71], the number of rivers discharging into coastal waters [70], the type of wastewater treatment [19], low mixing and dilution rates for WWTP effluents [72], the hydrodynamic flushing and residence time for confined water bodies [61,73,74], the type, scale and density of animal husbandry [34,58] and proximity to aquaculture [74,75]. Higher concentrations of pharmaceuticals have been measured in estuaries during low and incoming tides [76].…”

Section: (C) Factors Influencing Pharmaceutical Concentrations In Seamentioning

confidence: 99%

“…Field-derived bioaccumulation factors (BAFs) for pharmaceuticals in mussels from San Francisco Bay included dehydropnifedipine (290-764), carbamezepine (90-322), diphenhydramine (118-218), triamterene (57)(58)(59)(60)(61)(62)(63)(64)(65)(66)(67)(68)(69)(70)(71) and erythromycin-H 2 O (11-54). The BAFs varied between sites by up to a factor of 7 [66].…”

Section: (D) Marine Biotamentioning

confidence: 99%

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Sources, impacts and trends of pharmaceuticals in the marine and coastal environment

Gaw

Thomas

Hutchinson

2014

Phil. Trans. R. Soc. B

379

149

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There has been a significant investment in research to define exposures and potential hazards of pharmaceuticals in freshwater and terrestrial ecosystems. A substantial number of integrated environmental risk assessments have been developed in Europe, North America and many other regions for these situations. In contrast, comparatively few empirical studies have been conducted for human and veterinary pharmaceuticals that are likely to enter coastal and marine ecosystems. This is a critical knowledge gap given the significant increase in coastal human populations around the globe and the growth of coastal megacities, together with the increasing importance of coastal aquaculture around the world. There is increasing evidence that pharmaceuticals are present and are impacting on marine and coastal environments. This paper reviews the sources, impacts and concentrations of pharmaceuticals in marine and coastal environments to identify knowledge gaps and suggests focused case studies as a priority for future research.

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“…Multi-resistance was observed in 6% (3/60) of the isolates, 2% (1/60) were resistant to imipenem and tetracycline, 2% (1/60) to gentamicin and tetracycline, 2% (1/60) to gentamicin and imipenem. Incidence of multiple resistance to antimicrobials in bacteria allows a better understanding of the strains, antimicrobial consumption and their effects on cultured organisms and human diseases [32].…”

Section: Antimicrobial Susceptibility Profilementioning

confidence: 99%

Antagonistic Activity, Antimicrobial Susceptibility and Potential Virulence Factors of Enterococcus faecalis

Carneiro¹,

Evangelista-Barreto²,

Silveira-Oliveira³

et al. 2015

JLS

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Enterococcus faecalis isolates (87) were phenotypically and genotypically identified and subsequently subjected to the antagonism test and antimicrobial susceptibility. The lipolitic, hemolytic and DNAse activities were identified along with the genes gelE, cylL, cylS, ccf, cpd and cob that, encode virulence determinants. Thirty seven percent of isolates inhibited Listeria monocytogenes (CERELA), Listeria innocuous (CERELA), Staphylococcus aureus (ATCC25932), Lactococcus lactis (IL1403), Micrococcus luteus (ATCC10240) and Enterococcus faecalis (ATCC29212). All strains were sensitive to the ampicillin antibiotic, but 47% were resistant to at least one antimicrobial agent and 6% of isolates presented multidrug resistance. Ninety seven percent of isolates contained the gelE gene, but 77% of these isolates showed gelatinase activity. Presence of cylL and cylS genes was observed in 25% of the isolates, but only 5% presented hemolytic activity. None isolates showed lipase and DNAse activities. Eight percent of isolates contained the ccf gene and 2% showed the presence of the cpd and cob genes. The ability to inhibit pathogenic bacteria, low resistance to antibiotics and absence of virulence factors make some of Enterococcus faecalis strains characterized in the present study promising for exploitation in other applications such as probiotics in aquaculture.

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Antibiotics pollution in Jiulong River estuary: Source, distribution and bacterial resistance

Cited by 130 publications

References 36 publications

Occurrence, Seasonal Variation and Risk Assessment of Antibiotics in Qingcaosha Reservoir

Occurrence, Seasonal Variation and Risk Assessment of Antibiotics in Qingcaosha Reservoir

Sources, impacts and trends of pharmaceuticals in the marine and coastal environment

Antagonistic Activity, Antimicrobial Susceptibility and Potential Virulence Factors of Enterococcus faecalis

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