Spatial estimation of antibiotic residues in surface soils in a typical intensive vegetable cultivation area in China

Xie, Yonghong; Li, Xuewen; Wang, Jinfeng; Christakos, George; Liu, Huanjun; An, Lihong; Li, Fasheng

doi:10.1016/j.scitotenv.2012.04.071

Cited by 56 publications

(22 citation statements)

References 38 publications

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“…1c. More information about the manure application categories and quantity, the spatial distributions of area of greenhouse and planting age were shown in the previous studies (Xie et al, 2012;Li et al, 2013;Li et al, 2014).…”

Section: The Study Areamentioning

confidence: 87%

“…The molecular formulas of the three antibiotics were shown as Table 1. The reagents and sample analysis methods were given in the former studies (Xie et al, 2012;Li et al, 2013;Li et al, 2014). The physical and chemical properties of soils in the study area can also be found in Li et al (2013).…”

Section: Soil Samples and Analysismentioning

confidence: 99%

“…Because an inaccurate spatial pattern estimation of the soil antibiotics will result in considerable bias in risk assessment, the spatial interpolation of soil antibiotics is vital to evaluate the potential risks to human and environment (Xie et al, 2012). Therefore, it is needed to develop an effective surface modeling method which is suitable to interpolate the spatial patterns of soil antibiotics.…”

Section: Introductionmentioning

confidence: 99%

“…Some previous studies about soil antibiotics showed that the distributions of antibiotic residues in soil follow a spatial stratification pattern in the east of China (Xie et al, 2012), so the spatial predictions of soil antibiotics are more difficult than other soil properties due to the diverse sources of soil antibiotics.…”

Section: Introductionmentioning

confidence: 99%

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Surface modeling of soil antibiotics

Shi

Yue

et al. 2016

Science of The Total Environment

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Section: The Study Areamentioning

confidence: 87%

Section: Soil Samples and Analysismentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Surface modeling of soil antibiotics

Shi

Yue

et al. 2016

Science of The Total Environment

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“…A concentração das quinolonas variou entre ng L -1 e μg L -1 em matrizes aquosas (Tabela 2) 9,20-44 e, em solo, variou entre ng g -1 a μg g -1 ( Tabela 3). 26,28,[45][46][47] Das 15 quinolonas detectadas em águas superficiais e em estações de tratamento de esgoto, 13 delas (ácido nalidíxico, ácido oxolí-nico, ácido pipemídico, ciprofloxacina, enoxacina, enrofloxacina, fleroxacina, flumequina, gatifloxacina, lomefloxacina, moxifloxacina, norfloxacina, ofloxacina, pefloxacina e sarafloxacina) foram identificadas em ambas as matrizes na faixa de 1,3 a 9660 ng L -1 . A elevada concentração desses compostos nessas matrizes pode estar relacionada ao intenso uso na medicina humana ou veterinária.…”

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Occurrence and Degradation of Quinolones by Advanced Oxidation Processes

Rodrigues-Silva¹,

Maniero²,

Peres³

et al. 2014

Química Nova

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OCCURRENCE AND DEGRADATION OF QUINOLONES BY ADVANCED OXIDATION PROCESSES. In this review, the presence of quinolones in the environment, their risks and the available processes for water decontamination were addressed. Their occurrence in surface waters and also in soil raises concerns about the risk of the development of resistant bacteria and other potential chronic effects. AOPs (UV/H 2 O 2 , Fenton, photo-Fenton, and UV/TiO 2 ) and ozonation proved effective for degrading these emerging contaminants due to hydroxyl radical formation, surpassing the efficacy of conventional methods. In addition, the main degradation mechanisms of these drugs as well as data on residual biological activity were analyzed.Keywords: antimicrobials; degradation mechanisms; toxicity. INTRODUÇÃOAntimicrobianos são definidos como compostos naturais, sinté-ticos ou semi-sintéticos, cuja finalidade é prevenir ou tratar doenças infecciosas causadas por micro-organismos patogênicos, 1 tanto nos seres humanos como na medicina veterinária. Visto que não são totalmente metabolizados durante o uso terapêutico, os antimicrobianos estão presentes no esgoto doméstico principalmente como resultado da excreção humana. O uso de antimicrobianos na atividade pecuária contribui, também, para a sua introdução no meio ambiente, como resultado de processos de manufatura, disposição irregular ou excreção metabólica.2 Dessa forma, esses compostos são continuamente lançados no ambiente e, considerando sua característica recalcitrante de difícil remoção/degradação, são considerados pseudopersistentes.Existem aproximadamente onze diferentes classes de antimicrobianos, 3 que se diferenciam por sua estrutura química ou mecanismos de ação no tratamento específico de determinado patógeno. As quinolonas, antimicrobianos sintéticos, são eficientes no tratamento de infecções por bactérias Gram-positivas e Gram-negativas e são largamente empregadas tanto na medicina humana como veteriná-ria. Bactérias Gram-negativas são aquelas que possuem uma parede celular com poucas camadas de peptideoglicana e uma segunda membrana de lipopolissacarídeo. No processo de coloração, a lavagem com álcool rompe a camada externa de lipopolissacarídeo e o corante é removido por meio da camada de peptideoglicana. Consequentemente, as células Gram-negativas permanecem incolores até serem coradas com a safranina (segundo corante), adquirindo tonalidade rosa-avermelhada. Como exemplo, pode-se citar: Pseudomonas aeruginosa (causadora de infecções no aparelho pulmonar, urinário e respiratório), Escherichia coli (causadora de infecções urinárias) e Salmonella (causadora de intoxicações alimentares). As bactérias Gram-positivas, como por exemplo, a Streptococcus pneumoniae, possuem uma parede com mais camadas de peptideoglicana que as bactérias Gram-negativas. Empregando-se a coloração de Gram, apresentam-se com coloração púrpura quando fixadas com cristal violeta (primeiro corante), uma vez que essas bactérias retêm esse corante mesmo quando expostas ao álcool. 4,5 Dentre os principais riscos ...

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Antibiotic Pollution in the Environment: A Review

Gothwal

Thatikonda

2014

CLEAN Soil Air Water

524

257

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Antibiotics have been extensively and effectively used in human and veterinary medicines. Their benefits have been recognized in agriculture, aquaculture, bee‐keeping, and livestock as growth promoters. This paper collects information from several investigations on the sources and occurrences of antibiotics in natural and artificial environmental systems. Several antibiotics were reported for their occurrences in water resources, effluent from industries, sludge, manure, soil, plants, and organisms across the globe. Sorption, photo‐degradation, biodegradation, and oxidation were recognized as the main elimination pathways for these compounds and have been discussed in detail. The adverse effects of the pollutants were also highlighted and necessary suggestions were made for effective monitoring and mitigating pollution, which may provide the scope for future research.

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Spatial estimation of antibiotic residues in surface soils in a typical intensive vegetable cultivation area in China

Cited by 56 publications

References 38 publications

Surface modeling of soil antibiotics

Surface modeling of soil antibiotics

Occurrence and Degradation of Quinolones by Advanced Oxidation Processes

Antibiotic Pollution in the Environment: A Review

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