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Juan Carlos Nóvoa-Muñoz
Área de Edafoloxía e Química Agrícola, Departamento de Bioloxía Vexetal e Ciencia do Solo, Facultade de Ciencias, Universidade de Vigo, 32004, Ourense, Spain; Environmental Technology and Assessment Laboratory, Campus da Auga- Campus of Ourense, University of Vigo, 32004, Ourense, Spain

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Journal article
Published: 22 January 2020 in Environmental Pollution
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A high-resolution soil sampling has been applied to two forest podzols (ACB-I and ACB-II) from SW Europe in order to investigate the soil components and processes influencing the content, accumulation and vertical distribution of Hg. Total Hg contents (THg) were 28.0 and 23.6 μg kg−1 in A horizons of ACB-I and ACB-II, then they strongly decreased in the E horizons and peaked in the Bhs horizons of both soils (55.3 and 63.0 μg kg−1). THg decreased again in BwC horizons to 17.0 and 39.8 μg kg−1. The Bhs horizons accounted for 46 and 38% of the total Hg stored (ACB-I and ACB-II, respectively). Principal component analysis (PCA) and principal components regression (PCR), i.e. using the extracted components as predictors, allowed to distinguish the soil components that accounted for Hg accumulation in each horizon. The obtained model accurately predicted accumulated Hg (R2 = 0.845) through four principal components (PCs). In A horizons, Hg distribution was controlled by fresh soil organic matter (PC4), whereas in E horizons the negative values of all PCs were consistent with the absence of components able to retain Hg and the corresponding very low THg concentrations. Maximum THg contents in Bhs horizons coincided with the highest peaks of reactive Fe and Al compounds (PC1 and PC2) and secondary crystalline minerals (PC3) in both soils. The THg distribution in the deepest horizons (Bw and BwC) seemed to be influenced by other pedogenetic processes than those operating in the upper part of the profile (A, E and Bhs horizons). Our findings confirm the importance of soils in the global Hg cycling, as they exhibit significant Hg pools in horizons below the uppermost O and A horizons, preventing its mobilization to other environmental compartments.

ACS Style

Antía Gómez-Armesto; Antonio Martínez-Cortizas; Cruz Ferro-Vázquez; Melissa Méndez-López; Manuel Arias-Estévez; Juan Carlos Nóvoa-Muñoz. Modelling Hg mobility in podzols: Role of soil components and environmental implications. Environmental Pollution 2020, 260, 114040 .

AMA Style

Antía Gómez-Armesto, Antonio Martínez-Cortizas, Cruz Ferro-Vázquez, Melissa Méndez-López, Manuel Arias-Estévez, Juan Carlos Nóvoa-Muñoz. Modelling Hg mobility in podzols: Role of soil components and environmental implications. Environmental Pollution. 2020; 260 ():114040.

Chicago/Turabian Style

Antía Gómez-Armesto; Antonio Martínez-Cortizas; Cruz Ferro-Vázquez; Melissa Méndez-López; Manuel Arias-Estévez; Juan Carlos Nóvoa-Muñoz. 2020. "Modelling Hg mobility in podzols: Role of soil components and environmental implications." Environmental Pollution 260, no. : 114040.

Journal article
Published: 18 December 2019 in Geoderma
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The presence of Hg in soil fractions of different size in eight illuvial horizons of podzols from SW Europe and five from southernmost America was studied. Total Hg concentration (HgT) in the bulk soil was very variable, ranging from 11 to 293 ng g−1, attributed to a different intensity of the pedogenetic and weathering processes. The clay fraction showed the highest HgT average with 509 ng g−1 (range 93–2076 ng g−1), followed by the fine silt with a mean of 222 ng g−1 (range 38–836 ng g−1), while the lowest corresponded to the fine sand with an average of 50 ng g−1 (range 2–150 ng g−1). Mercury enrichment in the finer fractions was supported by the high values of the Hg accumulation factor (HgAF, Hg soil fraction / Hg bulk soil) found in the clay (range 1.4–11.5) and in the fine silt fractions (range 0.9–6.8). If the mass of each fraction with regard to bulk soil was considered, mean Hg content followed this sequence: fine silt (31.3 ng g−1), coarse sand (22.7 ng g−1), clay (18.2 ng g−1), coarse silt (15.2 ng g−1) and fine sand (12.5 ng g−1, n = 13). Silt and clay fractions from illuvial horizons of soils from SW Europe were richer in Hg than those fractions from southernmost America. Mercury levels in finer fractions (fine silt and clay), as well as some geochemical indices of Hg accumulation, were closely correlated to total organic C, organo-metal (Al, Fe) complexes and Al and Fe oxyhydroxides, which also exhibited an accumulation in those fractions, suggesting an active role in the Hg enrichment. The results confirmed that illuvial horizons of podzols, particularly those fractions with the lowest size, play a key environmental function preventing the mobilization of Hg in non-polluted soils towards other compartments of terrestrial ecosystems, such as surface waters and groundwater, in which Hg toxicity could be enhanced.

ACS Style

Antía Gómez-Armesto; Melissa Méndez-López; Xabier Pontevedra-Pombal; Eduardo García-Rodeja; Alicia Moretto; Manuel Estévez-Arias; Juan Carlos Nóvoa-Muñoz. Mercury accumulation in soil fractions of podzols from two contrasted geographical temperate areas: southwest Europe and southernmost America. Geoderma 2019, 362, 114120 .

AMA Style

Antía Gómez-Armesto, Melissa Méndez-López, Xabier Pontevedra-Pombal, Eduardo García-Rodeja, Alicia Moretto, Manuel Estévez-Arias, Juan Carlos Nóvoa-Muñoz. Mercury accumulation in soil fractions of podzols from two contrasted geographical temperate areas: southwest Europe and southernmost America. Geoderma. 2019; 362 ():114120.

Chicago/Turabian Style

Antía Gómez-Armesto; Melissa Méndez-López; Xabier Pontevedra-Pombal; Eduardo García-Rodeja; Alicia Moretto; Manuel Estévez-Arias; Juan Carlos Nóvoa-Muñoz. 2019. "Mercury accumulation in soil fractions of podzols from two contrasted geographical temperate areas: southwest Europe and southernmost America." Geoderma 362, no. : 114120.

Research article
Published: 13 November 2019 in Journal of Chemical Education
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A laboratory experiment to study the effect of soil amendments in the bioremediation of polluted soils is described. Students extracted and measured 0.01 M CaCl2-soluble Cd, EDTA-soluble Cd, and DTPA-soluble Cd concentrations in contaminated soils, treated with a liming material (mussel shell), and/or with an organic amendment (pine bark). The results of the laboratory experiment show that it is easy to perform and reproduce, and it gives results that can be interpreted from the point of view of bioremediation and immobilization of Cd, whereas the postlab work by the students shows that the learning objectives of the laboratory phase were met, with students being able to identify the relevance of two of the main parameters affecting metal bioavailability in soils: pH and organic matter content.

ACS Style

Antía Gómez-Armesto; Juan Carlos Nóvoa-Muñoz; Manuel Arias Estévez; Avelino Núñez Delgado; Esperanza Álvarez Rodríguez; Marı́a José Fernández Sanjurjo. Introducing Students to Remediation of Polluted Soils: Influence of Waste-Based Amendments on Cd Extractability. Journal of Chemical Education 2019, 97, 221 -225.

AMA Style

Antía Gómez-Armesto, Juan Carlos Nóvoa-Muñoz, Manuel Arias Estévez, Avelino Núñez Delgado, Esperanza Álvarez Rodríguez, Marı́a José Fernández Sanjurjo. Introducing Students to Remediation of Polluted Soils: Influence of Waste-Based Amendments on Cd Extractability. Journal of Chemical Education. 2019; 97 (1):221-225.

Chicago/Turabian Style

Antía Gómez-Armesto; Juan Carlos Nóvoa-Muñoz; Manuel Arias Estévez; Avelino Núñez Delgado; Esperanza Álvarez Rodríguez; Marı́a José Fernández Sanjurjo. 2019. "Introducing Students to Remediation of Polluted Soils: Influence of Waste-Based Amendments on Cd Extractability." Journal of Chemical Education 97, no. 1: 221-225.

Journal article
Published: 01 November 2019 in Microporous and Mesoporous Materials
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M. Conde-Cid; Juan Carlos Nóvoa-Muñoz; A. Núñez-Delgado; M.J. Fernández-Sanjurjo; M. Arias-Estévez; Esperanza Álvarez. Experimental data and modeling for sulfachloropyridazine and sulfamethazine adsorption/desorption on agricultural acid soils. Microporous and Mesoporous Materials 2019, 288, 1 .

AMA Style

M. Conde-Cid, Juan Carlos Nóvoa-Muñoz, A. Núñez-Delgado, M.J. Fernández-Sanjurjo, M. Arias-Estévez, Esperanza Álvarez. Experimental data and modeling for sulfachloropyridazine and sulfamethazine adsorption/desorption on agricultural acid soils. Microporous and Mesoporous Materials. 2019; 288 ():1.

Chicago/Turabian Style

M. Conde-Cid; Juan Carlos Nóvoa-Muñoz; A. Núñez-Delgado; M.J. Fernández-Sanjurjo; M. Arias-Estévez; Esperanza Álvarez. 2019. "Experimental data and modeling for sulfachloropyridazine and sulfamethazine adsorption/desorption on agricultural acid soils." Microporous and Mesoporous Materials 288, no. : 1.

Journal article
Published: 01 November 2019 in Journal of Environmental Management
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We studied competitive adsorption for the tetracycline antibiotics (TCs) tetracycline (TC), oxytetracycline (OTC), and chlortetracycline (CTC) on three bio-adsorbents (mussel shell, oak wood ash, and pine bark). The results were compared for individual systems (with antibiotics added separately) and ternary systems (with all three antibiotics added simultaneously). In all cases batch-type experiments were carried out, with 24 h of contact time. In the individual systems, concentrations of 200 μmol L-1 were used for each of the three antibiotics, separately. In the ternary system, all three TCs were added simultaneously, using the following total concentrations: 50, 100, 200, 400, 600 μmol L-1, each antibiotic being 1/3 of the total. Taking into account that ionic strength of a solution is related to a measure of the concentration of ions in that solution, the use of individual and ternary systems allows to compare, for each antibiotic, systems having equal concentrations and similar ionic strength (concentrations of 200 μmol L-1), and systems having different concentrations and ionic strength (200 μmol L-1 in the individual systems, and 600 μmol L-1 in the ternary systems, resulting from the sum of 200 μmol L-1 corresponding to each of the three antibiotics). Adsorption/desorption results indicated that these processes were in all cases closely related to pH values, and to carbon and non-crystalline minerals contents in the bio-adsorbents. Both oak ash and pine bark adsorbed close to 100% of TCs in individual and ternary systems, with desorption 30% for TC and OTC. In view of the results, oak ash and pine bark can be recommended as effective bio-adsorbents for the three TCs studied, and could be useful to retain/inactive them in wastes, and soil or liquid media receiving these emerging pollutants, thus reducing risks of damage for public health and the environment.

ACS Style

Manuel Conde-Cid; Gustavo Ferreira-Coelho; Manuel Arias-Estévez; Cristina Álvarez-Esmorís; Juan Carlos Nóvoa-Muñoz; Avelino Núñez-Delgado; María J. Fernández-Sanjurjo; Esperanza Álvarez-Rodríguez. Competitive adsorption/desorption of tetracycline, oxytetracycline and chlortetracycline on pine bark, oak ash and mussel shell. Journal of Environmental Management 2019, 250, 109509 .

AMA Style

Manuel Conde-Cid, Gustavo Ferreira-Coelho, Manuel Arias-Estévez, Cristina Álvarez-Esmorís, Juan Carlos Nóvoa-Muñoz, Avelino Núñez-Delgado, María J. Fernández-Sanjurjo, Esperanza Álvarez-Rodríguez. Competitive adsorption/desorption of tetracycline, oxytetracycline and chlortetracycline on pine bark, oak ash and mussel shell. Journal of Environmental Management. 2019; 250 ():109509.

Chicago/Turabian Style

Manuel Conde-Cid; Gustavo Ferreira-Coelho; Manuel Arias-Estévez; Cristina Álvarez-Esmorís; Juan Carlos Nóvoa-Muñoz; Avelino Núñez-Delgado; María J. Fernández-Sanjurjo; Esperanza Álvarez-Rodríguez. 2019. "Competitive adsorption/desorption of tetracycline, oxytetracycline and chlortetracycline on pine bark, oak ash and mussel shell." Journal of Environmental Management 250, no. : 109509.

Journal article
Published: 15 October 2019 in Processes
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Chromium (as Cr(VI)) and fluoride (F−) are frequently found in effluents from different industrial activities. In cases where these effluents reach soil, it can play an important role in retaining those pollutants. Similarly, different byproducts could act as bio-adsorbents to directly treat polluted waters or to enhance the purging potential of soil. In this work, we used batch-type experiments to study competitive Cr(VI) and F− adsorption in two different soils and several kinds of byproducts. Both soils, as well as mussel shell, oak ash, and hemp waste showed higher adsorption for F−, while pyritic material, pine bark, and sawdust had a higher affinity for Cr(VI). Considering the binary competitive system, a clear competition between both elements in anionic form is shown, with decreases in adsorption of up to 90% for Cr(VI), and of up to 30% for F−. Adsorption results showed better fitting to Freundlich’s than to Langmuir’s model. None of the individual soils or byproducts were able to adsorbing high percentages of both pollutants simultaneously, but it could be highly improved by adding pine bark to increase Cr(VI) adsorption in soils, thus drastically reducing the risks of pollution and deleterious effects on the environment and on public health.

ACS Style

Ana Quintáns-Fondo; Gustavo Ferreira-Coelho; Manuel Arias-Estévez; Juan Carlos Nóvoa-Muñoz; David Fernández-Calviño; Esperanza Álvarez-Rodríguez; María J. Fernández-Sanjurjo; Avelino Núñez-Delgado. Chromium VI and Fluoride Competitive Adsorption on Different Soils and By-Products. Processes 2019, 7, 748 .

AMA Style

Ana Quintáns-Fondo, Gustavo Ferreira-Coelho, Manuel Arias-Estévez, Juan Carlos Nóvoa-Muñoz, David Fernández-Calviño, Esperanza Álvarez-Rodríguez, María J. Fernández-Sanjurjo, Avelino Núñez-Delgado. Chromium VI and Fluoride Competitive Adsorption on Different Soils and By-Products. Processes. 2019; 7 (10):748.

Chicago/Turabian Style

Ana Quintáns-Fondo; Gustavo Ferreira-Coelho; Manuel Arias-Estévez; Juan Carlos Nóvoa-Muñoz; David Fernández-Calviño; Esperanza Álvarez-Rodríguez; María J. Fernández-Sanjurjo; Avelino Núñez-Delgado. 2019. "Chromium VI and Fluoride Competitive Adsorption on Different Soils and By-Products." Processes 7, no. 10: 748.

Journal article
Published: 25 July 2019 in Environmental Research
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In this work, tetracycline (TC) adsorption and desorption were studied, and the soil properties that most influenced the process were identified. Batch experiments were carried out on 63 crop soil samples, which showed a wide range of values in their physicochemical characteristics. Adsorption curves fit well to the Freundlich equation, with KF values varying between 901 and 9202 Ln μmol1−n kg−1. Kd values ranged between 53 and 6899 L kg−1 for an initial concentration (Co) of 400 μM, whereas the adsorption capacity (qa) ranged from 8541 to 14,852 μmol kg−1. TC retention on soils was high, with adsorption values always higher than 58%, and desorption values lower than 9%. Bivariate correlations and multiple linear regressions were performed to identify those soil variables having a greater influence on TC adsorption and desorption. The results indicate that organic carbon, clay, exchangeable aluminum, available phosphorus, effective cation exchange capacity content, and pH are the main characteristics affecting TC adsorption and desorption. The models, developed by means of multiple linear regression, gave satisfactory and robust predictions for TC adsorption and desorption, using easily determinable soil characteristics as input.

ACS Style

M. Conde-Cid; D. Fernández-Calviño; Juan Carlos Nóvoa-Muñoz; Avelino Núñez-Delgado; M.J. Fernández-Sanjurjo; M. Arias-Estévez; Esperanza Álvarez. Experimental data and model prediction of tetracycline adsorption and desorption in agricultural soils. Environmental Research 2019, 177, 108607 .

AMA Style

M. Conde-Cid, D. Fernández-Calviño, Juan Carlos Nóvoa-Muñoz, Avelino Núñez-Delgado, M.J. Fernández-Sanjurjo, M. Arias-Estévez, Esperanza Álvarez. Experimental data and model prediction of tetracycline adsorption and desorption in agricultural soils. Environmental Research. 2019; 177 ():108607.

Chicago/Turabian Style

M. Conde-Cid; D. Fernández-Calviño; Juan Carlos Nóvoa-Muñoz; Avelino Núñez-Delgado; M.J. Fernández-Sanjurjo; M. Arias-Estévez; Esperanza Álvarez. 2019. "Experimental data and model prediction of tetracycline adsorption and desorption in agricultural soils." Environmental Research 177, no. : 108607.

Journal article
Published: 22 March 2019 in Science of The Total Environment
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Total and available Cu and Zn levels were assessed in plant biomass, as well as in two rhizosphere fractions (tightly adhering rhizosphere (TAR), and loosely adhering rhizosphere (LAR)), in wild plants species from vineyard soils. Both TAR and LAR fractions were enriched in total Cu and Zn (1.7 and 1.6 times, respectively), and in available Cu and Zn (2.2 and 19.5 times, respectively), with the former being significantly higher for TAR than for LAR fractions. Mean values for total Cu accumulation in root and aerial biomass of the studied wild plants were 84 and 66 mg kg−1, respectively, being 57 and 79 mg kg−1 for Zn. No correlations were found among metal contents in plant biomass and available Cu and Zn concentrations in the rhizosphere fractions. Translocation factor (TF) values for Zn (range 1.0–3.5) indicate preferential accumulation in the aerial biomass in all the studied wild plants. On the contrary, TF for Cu shows a greater variability, depending on plant species, and ranging from 0.2 to 5.9. Regarding bioaccumulation factor (BAF), ranges were 0.03–0.27 and 0.13–0.58, for Cu and Zn, respectively. These results suggest that D. sanguinalis, P. hieracioides, S. viridis, and T. barbata could be useful for Cu remediation in the studied soils, by means of phytostabilization processes.

ACS Style

C. Campillo-Cora; D. Fernández-Calviño; P. Pérez-Rodríguez; M.J. Fernández-Sanjurjo; Avelino Núñez-Delgado; Esperanza Álvarez; M. Arias-Estévez; Juan Carlos Nóvoa-Muñoz. Copper and zinc in rhizospheric soil of wild plants growing in long-term acid vineyard soils. Insights on availability and metal remediation. Science of The Total Environment 2019, 672, 389 -399.

AMA Style

C. Campillo-Cora, D. Fernández-Calviño, P. Pérez-Rodríguez, M.J. Fernández-Sanjurjo, Avelino Núñez-Delgado, Esperanza Álvarez, M. Arias-Estévez, Juan Carlos Nóvoa-Muñoz. Copper and zinc in rhizospheric soil of wild plants growing in long-term acid vineyard soils. Insights on availability and metal remediation. Science of The Total Environment. 2019; 672 ():389-399.

Chicago/Turabian Style

C. Campillo-Cora; D. Fernández-Calviño; P. Pérez-Rodríguez; M.J. Fernández-Sanjurjo; Avelino Núñez-Delgado; Esperanza Álvarez; M. Arias-Estévez; Juan Carlos Nóvoa-Muñoz. 2019. "Copper and zinc in rhizospheric soil of wild plants growing in long-term acid vineyard soils. Insights on availability and metal remediation." Science of The Total Environment 672, no. : 389-399.

Book chapter
Published: 01 January 2019 in Microbial Wastewater Treatment
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Avelino Núñez-Delgado; Yudani Pousada-Ferradás; Esperanza Álvarez-Rodríguez; María J. Fernández-Sanjurjo; Manuel Conde-Cid; Juan Carlos Nóvoa-Muñoz; Manuel Arias-Estévez. Effects of Microbiological and Non-Microbiological Treatments of Sewage Sludge on Antibiotics as Emerging Pollutants Present in Wastewater. Microbial Wastewater Treatment 2019, 1 -17.

AMA Style

Avelino Núñez-Delgado, Yudani Pousada-Ferradás, Esperanza Álvarez-Rodríguez, María J. Fernández-Sanjurjo, Manuel Conde-Cid, Juan Carlos Nóvoa-Muñoz, Manuel Arias-Estévez. Effects of Microbiological and Non-Microbiological Treatments of Sewage Sludge on Antibiotics as Emerging Pollutants Present in Wastewater. Microbial Wastewater Treatment. 2019; ():1-17.

Chicago/Turabian Style

Avelino Núñez-Delgado; Yudani Pousada-Ferradás; Esperanza Álvarez-Rodríguez; María J. Fernández-Sanjurjo; Manuel Conde-Cid; Juan Carlos Nóvoa-Muñoz; Manuel Arias-Estévez. 2019. "Effects of Microbiological and Non-Microbiological Treatments of Sewage Sludge on Antibiotics as Emerging Pollutants Present in Wastewater." Microbial Wastewater Treatment , no. : 1-17.

Editorial
Published: 27 November 2018 in Frontiers in Chemistry
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Editorial: New Findings on the Use of Biosorbents and Technically-Based Sorbents to Control Soil and Water Pollution

ACS Style

Avelino Núñez-Delgado; Juan Carlos Nóvoa-Muñoz; Sabry M. Shaheen. Editorial: New Findings on the Use of Biosorbents and Technically-Based Sorbents to Control Soil and Water Pollution. Frontiers in Chemistry 2018, 6, 1 .

AMA Style

Avelino Núñez-Delgado, Juan Carlos Nóvoa-Muñoz, Sabry M. Shaheen. Editorial: New Findings on the Use of Biosorbents and Technically-Based Sorbents to Control Soil and Water Pollution. Frontiers in Chemistry. 2018; 6 ():1.

Chicago/Turabian Style

Avelino Núñez-Delgado; Juan Carlos Nóvoa-Muñoz; Sabry M. Shaheen. 2018. "Editorial: New Findings on the Use of Biosorbents and Technically-Based Sorbents to Control Soil and Water Pollution." Frontiers in Chemistry 6, no. : 1.

Journal article
Published: 15 September 2018 in Journal of Environmental Management
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Antibiotics discharged to the environment constitute a main concern for which different treatment alternatives are being studied, some of them based on antibiotics removal or inactivation using by-products with adsorbent capacity, or which can act as catalyst for photo-degradation. But a preliminary step is to determine the general characteristics and magnitude of the degradation process effectively acting on antibiotics. A specific case is that of sulfonamides (SAs), one of the antibiotic groups most widely used in veterinary medicine, and which are considered the most mobile antibiotics, causing that they are frequently detected in both surface- and ground-waters, facilitating their entry in the food chain and causing public health hazards. In this work we investigated abiotic and biotic degradation of three sulfonamides (sulfadiazine –SDZ-, sulfachloropyridazine –SCP-, and sulfamethazine –SMT-) in aqueous media. The results indicated that, in filtered milliQ water and under simulated sunlight, the degradation sequence was: SCP > SDZ ≈ SMT. Furthermore, the rate of degradation clearly increased with the raise of pH: at pH 4.0, half-lives were 1.2, 70.5 and 84.4 h for SCP, SDZ and SMT, respectively, while at pH 7.2 they were 2.3, 9.4 and 13.2 h for SCP, SMT and SDZ. The addition of a culture medium hardly caused any change in degradation rates as compared to experiments performed in milliQ water at the same pH value (7.2), suggesting that in this case sulfonamides degradation rate was not affected by the presence of some chemical elements and compounds, such as sodium, chloride and phosphate. However, the addition of bacterial suspensions extracted from a soil and from poultry manure increased the rate of degradation of these antibiotics. This increase in degradation cannot be attributed to biodegradation, since there was no degradation in the dark during the time of the experiment (72 h). This indicates that photo-degradation constitutes the main removal mechanism for SAs in aqueous media, a mechanism that in this case was favored by humic acids supplied with the extracts from soil and manure. The overall results could contribute to the understanding of the environmental fate of the three sulfonamides studied, aiding to program actions that could favor their inactivation, which is especially relevant since its dissemination can involve serious environmental and public health risks.

ACS Style

M. Conde-Cid; D. Fernández-Calviño; J.C. Nóvoa-Muñoz; M. Arias-Estévez; Montserrat Díaz-Raviña; A. Núñez-Delgado; María J. Fernández-Sanjurjo; Esperanza Álvarez. Degradation of sulfadiazine, sulfachloropyridazine and sulfamethazine in aqueous media. Journal of Environmental Management 2018, 228, 239 -248.

AMA Style

M. Conde-Cid, D. Fernández-Calviño, J.C. Nóvoa-Muñoz, M. Arias-Estévez, Montserrat Díaz-Raviña, A. Núñez-Delgado, María J. Fernández-Sanjurjo, Esperanza Álvarez. Degradation of sulfadiazine, sulfachloropyridazine and sulfamethazine in aqueous media. Journal of Environmental Management. 2018; 228 ():239-248.

Chicago/Turabian Style

M. Conde-Cid; D. Fernández-Calviño; J.C. Nóvoa-Muñoz; M. Arias-Estévez; Montserrat Díaz-Raviña; A. Núñez-Delgado; María J. Fernández-Sanjurjo; Esperanza Álvarez. 2018. "Degradation of sulfadiazine, sulfachloropyridazine and sulfamethazine in aqueous media." Journal of Environmental Management 228, no. : 239-248.

Journal article
Published: 01 September 2018 in Science of The Total Environment
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Veterinary antibiotics reaching soils and water bodies are considered emerging pollutants deserving special attention. In this work, dissipation of tetracycline (TC), oxytetracycline (OTC) and chlortetracycline (CTC) is investigated. Dissipation experiments in filtered water, using simulated sunlight, resulted in the following degradation sequence: TC < OTC ≈ CTC, with half-life values of 229, 101 and 104 min, respectively; however, no dissipation took place in the dark. Dissipation of the three tetracyclines in culture medium and with simulated sunlight was much higher, giving the sequence TC ≈ OTC < CTC, with half-lives of 9, 10 and 7 min, respectively; in the dark, TC and OTC did not suffer dissipation, but it was around 28% for CTC at the end of the experiment (480 min). The variable explaining a higher dissipation in culture medium and with light was pH, as this parameter caused changes in the distribution of species of tetracyclines, affecting degradation. Adding bacterial suspensions extracted from soil and poultry manure increased dissipation, giving the sequence: TC ≈ OTC < CTC, which is attributed to the presence of humic acids, which adsorb these antibiotics. These results could facilitate understanding the fate of antibiotics reaching environmental compartments and causing public health hazards.

ACS Style

M. Conde-Cid; D. Fernández-Calviño; Juan Carlos Nóvoa-Muñoz; M. Arias-Estévez; Montserrat Díaz-Raviña; María J. Fernández-Sanjurjo; Avelino Núñez-Delgado; Esperanza Álvarez. Biotic and abiotic dissipation of tetracyclines using simulated sunlight and in the dark. Science of The Total Environment 2018, 635, 1520 -1529.

AMA Style

M. Conde-Cid, D. Fernández-Calviño, Juan Carlos Nóvoa-Muñoz, M. Arias-Estévez, Montserrat Díaz-Raviña, María J. Fernández-Sanjurjo, Avelino Núñez-Delgado, Esperanza Álvarez. Biotic and abiotic dissipation of tetracyclines using simulated sunlight and in the dark. Science of The Total Environment. 2018; 635 ():1520-1529.

Chicago/Turabian Style

M. Conde-Cid; D. Fernández-Calviño; Juan Carlos Nóvoa-Muñoz; M. Arias-Estévez; Montserrat Díaz-Raviña; María J. Fernández-Sanjurjo; Avelino Núñez-Delgado; Esperanza Álvarez. 2018. "Biotic and abiotic dissipation of tetracyclines using simulated sunlight and in the dark." Science of The Total Environment 635, no. : 1520-1529.

Journal article
Published: 01 September 2018 in Journal of Environmental Management
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Using batch-type experiments, chromium (Cr(VI)) and fluoride (F−) sorption/desorption were studied in forest and vineyard soil samples, pyritic material, pine bark, oak ash, hemp waste and mussel shell, as well as on samples of forest and vineyard soil, and of pyritic material, individually treated with 48 t ha−1 of pine bark, oak ash, and mussel shell. Pine bark showed the highest Cr(VI) sorption (always > 97% of the concentration added) and low desorption (<1.5%). Pyritic material sorbed between 55 and 98%, and desorbed between 0.6 and 9%. Forest and vineyard soils, oak ash, mussel shell and hemp waste showed Cr(VI) sorption always < 32%, and desorption between 22 and 100%. Pine bark also showed the highest F− retention (sorption between 62 and 73%, desorption between 10 and 15%), followed by oak ash (sorption 60–69%, desorption 11–14%), forest soil (sorption 60–73%, desorption 19–36%), and pyritic material (sorption 60–67%, desorption 13–15%), whereas in vineyard sorption was 49–64%, and desorption 24–27%, and in hemp waste sorption was 26–36%, and desorption 41–59%. Sorption data showed better fitting to the Freundlich than to the Langmuir model, especially in the case of Cr(VI), indicating that multilayer sorption dominated. The addition of by-products to the forest and vineyard soils, and to the pyritic material, caused an overall increase in F− sorption, and decreased desorption. Furthermore, the pine bark amendment resulted in increases in Cr(VI) retention by both soils and the pyritic material. These results could be useful to favor the recycling of the by-products studied, aiding in the management of soils and degraded areas affected by Cr(VI) and F− pollution, and in the removal of both anions from polluted waters.

ACS Style

Aurora Romar-Gasalla; Vanesa Santás-Miguel; Juan Carlos Nóvoa-Muñoz; Manuel Arias-Estévez; Esperanza Álvarez; Avelino Núñez-Delgado; María J. Fernández-Sanjurjo. Chromium and fluoride sorption/desorption on un-amended and waste-amended forest and vineyard soils and pyritic material. Journal of Environmental Management 2018, 222, 3 -11.

AMA Style

Aurora Romar-Gasalla, Vanesa Santás-Miguel, Juan Carlos Nóvoa-Muñoz, Manuel Arias-Estévez, Esperanza Álvarez, Avelino Núñez-Delgado, María J. Fernández-Sanjurjo. Chromium and fluoride sorption/desorption on un-amended and waste-amended forest and vineyard soils and pyritic material. Journal of Environmental Management. 2018; 222 ():3-11.

Chicago/Turabian Style

Aurora Romar-Gasalla; Vanesa Santás-Miguel; Juan Carlos Nóvoa-Muñoz; Manuel Arias-Estévez; Esperanza Álvarez; Avelino Núñez-Delgado; María J. Fernández-Sanjurjo. 2018. "Chromium and fluoride sorption/desorption on un-amended and waste-amended forest and vineyard soils and pyritic material." Journal of Environmental Management 222, no. : 3-11.

Journal article
Published: 22 June 2018 in Journal of Cleaner Production
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Antibiotics released to the environment are causing public health and sustainability concerns. Taking that into account, we studied the presence of tetracyclines (Tetracycline, Oxytetracycline, Chlortetracycline and Doxycycline) and sulfonamides (Sulfadiazine, Sulfamethazine, Sulfachlorpyridazine and Sulfamethoxypyridazine) in manures, soils and crops from Galicia (Spain), where a high number of cattle, pig and poultry farms exist. We used the HPLC-MS/MS technique to analyze 40 samples of cattle, pig and poultry manure, as well as 65 soil samples, and 27 vegetation samples. The presence of antibiotics was detected in 42% of the manures, 17% of the soils and 44% of crop samples, with maximum concentrations of 106.0 mg kg−1 for individual antibiotics in manures and 0.6 mg kg−1 in soils and plants. The simultaneous presence of several antibiotics was infrequent in soils (only three soils presented two or three antibiotics), and more common in manures and plants, some of them with up to five antibiotics. Pig slurries showed the highest antibiotic concentrations, as well as the highest number of different antibiotics. Crops fertilized with these slurries also showed the highest number of different antibiotics. Antibiotics were detected in 71% of grass and corn samples, and in 33% of wheat grain samples, while they were not detected in potato samples. These results can be very relevant taking into account potential environmental and public health repercussions of antibiotics in soil and water, as well as antibiotics uptake and accumulation in plants, and subsequent incorporation to the food chain.

ACS Style

Manuel Conde-Cid; Cristina Álvarez-Esmorís; Remigio Paradelo-Núñez; Juan Carlos Nóvoa-Muñoz; Manuel Arias-Estévez; Esperanza Álvarez-Rodríguez; María J. Fernández-Sanjurjo; Avelino Núñez-Delgado. Occurrence of tetracyclines and sulfonamides in manures, agricultural soils and crops from different areas in Galicia (NW Spain). Journal of Cleaner Production 2018, 197, 491 -500.

AMA Style

Manuel Conde-Cid, Cristina Álvarez-Esmorís, Remigio Paradelo-Núñez, Juan Carlos Nóvoa-Muñoz, Manuel Arias-Estévez, Esperanza Álvarez-Rodríguez, María J. Fernández-Sanjurjo, Avelino Núñez-Delgado. Occurrence of tetracyclines and sulfonamides in manures, agricultural soils and crops from different areas in Galicia (NW Spain). Journal of Cleaner Production. 2018; 197 ():491-500.

Chicago/Turabian Style

Manuel Conde-Cid; Cristina Álvarez-Esmorís; Remigio Paradelo-Núñez; Juan Carlos Nóvoa-Muñoz; Manuel Arias-Estévez; Esperanza Álvarez-Rodríguez; María J. Fernández-Sanjurjo; Avelino Núñez-Delgado. 2018. "Occurrence of tetracyclines and sulfonamides in manures, agricultural soils and crops from different areas in Galicia (NW Spain)." Journal of Cleaner Production 197, no. : 491-500.

Journal article
Published: 01 June 2018 in Applied Soil Ecology
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An extremely acid mine soil polluted with Cu was amended with pine bark, crushed mussel shell or a 1:1 mixture of these two by-products. The performance of the soil microbial community was measured as the bacterial and fungal community growth, which were monitored during 2 years following the amendments. Pine bark caused significant increases of microbial growth rates, but with distinct differences between fungal and bacterial groups. Bacterial growth increased transiently at intermediate rates of pine bark applications, but returned to control rates within 2 years of application. In contrast, pine bark applications consistently increased fungal growth with effects that were maintained throughout the study period. The addition of only crushed mussel shell to the mine soil caused very delayed positive effects on the bacterial growth and almost no significant effects on the fungal growth. However, the combination of pine bark with crushed mussel shells 1:1 mixtures caused positive growth responses of both bacteria and fungi that remained persistent throughout the 2 years of study. Fungal and bacterial growth were both suppressed in the mine soil by the lack of organic matter. In addition, bacterial growth was also secondarily suppressed by acidity, and hence, when organic matter (pine bark) additions were combined with pH increases (crushed mussel shell additions), bacterial growth was additionally stimulated. In conclusion, the proposed mixture of by-products (pine bark and crushed mussel shell) is suggested as a promising reclamation strategy for acid mine soils. These results also suggest that in soils like that studied here the organic matter limitation is a more important factor than the soil pH and Cu availability for fungal and bacterial performance.

ACS Style

David Fernández-Calviño; Laura Cutillas-Barreiro; Juan Carlos Nóvoa-Muñoz; Montserrat Díaz-Raviña; María J. Fernández-Sanjurjo; Esperanza Álvarez; Avelino Núñez-Delgado; Manuel Arias-Estévez; Johannes Rousk. Using pine bark and mussel shell amendments to reclaim microbial functions in a Cu polluted acid mine soil. Applied Soil Ecology 2018, 127, 102 -111.

AMA Style

David Fernández-Calviño, Laura Cutillas-Barreiro, Juan Carlos Nóvoa-Muñoz, Montserrat Díaz-Raviña, María J. Fernández-Sanjurjo, Esperanza Álvarez, Avelino Núñez-Delgado, Manuel Arias-Estévez, Johannes Rousk. Using pine bark and mussel shell amendments to reclaim microbial functions in a Cu polluted acid mine soil. Applied Soil Ecology. 2018; 127 ():102-111.

Chicago/Turabian Style

David Fernández-Calviño; Laura Cutillas-Barreiro; Juan Carlos Nóvoa-Muñoz; Montserrat Díaz-Raviña; María J. Fernández-Sanjurjo; Esperanza Álvarez; Avelino Núñez-Delgado; Manuel Arias-Estévez; Johannes Rousk. 2018. "Using pine bark and mussel shell amendments to reclaim microbial functions in a Cu polluted acid mine soil." Applied Soil Ecology 127, no. : 102-111.

Journal article
Published: 13 May 2018 in Environmental Science and Pollution Research
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Batch experiments were used to test P sorbent potential of soil samples, pyritic and granitic materials, mussel shell, mussel shell ash, sawdust, and slate waste fines for different pH and incubation times. Maximum P sorption varied in a wide range of pH: < 4 for pyritic material, 4–6 for forest soil, > 5 for slate fines, > 6 for shell ash, and pH 6–8 for mussel shell. P sorption was rapid (< 24 h) for forest soil, shell ash, pyritic material, and fine shell. On the opposite side, it was clearly slower for vineyard soil, granitic material, slate fines, pine sawdust, and coarse shell, with increased P sorption even 1 month later. For any incubation time, P sorption was > 90% in shell ash, whereas forest soil, pyritic material, and fine shell showed sorption rates approaching 100% within 24 h of incubation. These results could be useful to manage and/or recycle the sorbents tested when focusing on P immobilization or removal, in circumstances where pH changes and where contact time may vary from hours to days, thus aiding to diminish P pollution and subsequent eutrophication risks, promoting conservation and sustainability.

ACS Style

Aurora Romar-Gasalla; Juan Carlos Nóvoa-Muñoz; Manuel Arias-Estévez; María J. Fernández-Sanjurjo; Esperanza Álvarez-Rodríguez; Avelino Núñez-Delgado. Controlling risks of P water pollution by sorption on soils, pyritic material, granitic material, and different by-products: effects of pH and incubation time. Environmental Science and Pollution Research 2018, 26, 11558 -11564.

AMA Style

Aurora Romar-Gasalla, Juan Carlos Nóvoa-Muñoz, Manuel Arias-Estévez, María J. Fernández-Sanjurjo, Esperanza Álvarez-Rodríguez, Avelino Núñez-Delgado. Controlling risks of P water pollution by sorption on soils, pyritic material, granitic material, and different by-products: effects of pH and incubation time. Environmental Science and Pollution Research. 2018; 26 (12):11558-11564.

Chicago/Turabian Style

Aurora Romar-Gasalla; Juan Carlos Nóvoa-Muñoz; Manuel Arias-Estévez; María J. Fernández-Sanjurjo; Esperanza Álvarez-Rodríguez; Avelino Núñez-Delgado. 2018. "Controlling risks of P water pollution by sorption on soils, pyritic material, granitic material, and different by-products: effects of pH and incubation time." Environmental Science and Pollution Research 26, no. 12: 11558-11564.

Original research article
Published: 06 March 2018 in Frontiers in Chemistry
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The purpose of this work was to elucidate the repercussion of changing pH, incubation time and As(V) competition on fluoride (F−) sorption on forest and vineyard soil samples, pyritic, and granitic materials, as well as on the by-products pine sawdust, oak wood ash, mussel shell ash, fine and coarse mussel shell, and slate processing waste fines. To reach this end, the methodological approach was based on batch-type experiments. The results indicate that, for most materials, F− sorption was very high at the start, but was clearly diminished when the pH value increased. However, oak wood ash and shell ash showed high F− sorption even at alkaline pH, and pine sawdust showed low F− sorption for any pH value. Specifically, F− sorption was close to 100% for both ashes at pH < 6, and around 70% at pH 10, while for forest soil it was close to 90% at pH < 2, and around 60% at pH values near 8. Regarding the effect of incubation time on F− sorption, it was very low for both soils, pyritic material, granitic material, and both kinds of ashes, as all of them showed very rapid F− sorption from the start, with differences being lesser than 10% between sorption at 30 min and 1 month of incubation. However, sawdust and slate fines sorbed 20% of added F− in 30 min, remaining constant up to 12 h, and doubling after 30 days. And finally, mussel shell sorbed 20% at 30 min, increasing to close to 60% when incubation time was 30 days. This means that some of the materials showed a first sorption phase characterized by rapid F− sorption, and a slower sorption in a second phase. As regards the effect of the presence of As(V) on F− sorption, it was almost negligible, indicating the absence of competition for sorption sites. In view of that all, these results could aid to appropriately manage soils and by-products when focusing on F− removal, in circumstances where pH value changes, contact time vary from hours to days, and potential competition between F− and As(V) could take place.

ACS Style

Ana Quintáns-Fondo; Vanesa Santás-Miguel; Juan C. Nóvoa-Muñoz; Manuel Arias-Estévez; María J. Fernández-Sanjurjo; Esperanza Álvarez-Rodriguez; Avelino Núñez-Delgado. Effects of Changing pH, Incubation Time, and As(V) Competition, on F− Retention on Soils, Natural Adsorbents, By-Products, and Waste Materials. Frontiers in Chemistry 2018, 6, 1 .

AMA Style

Ana Quintáns-Fondo, Vanesa Santás-Miguel, Juan C. Nóvoa-Muñoz, Manuel Arias-Estévez, María J. Fernández-Sanjurjo, Esperanza Álvarez-Rodriguez, Avelino Núñez-Delgado. Effects of Changing pH, Incubation Time, and As(V) Competition, on F− Retention on Soils, Natural Adsorbents, By-Products, and Waste Materials. Frontiers in Chemistry. 2018; 6 ():1.

Chicago/Turabian Style

Ana Quintáns-Fondo; Vanesa Santás-Miguel; Juan C. Nóvoa-Muñoz; Manuel Arias-Estévez; María J. Fernández-Sanjurjo; Esperanza Álvarez-Rodriguez; Avelino Núñez-Delgado. 2018. "Effects of Changing pH, Incubation Time, and As(V) Competition, on F− Retention on Soils, Natural Adsorbents, By-Products, and Waste Materials." Frontiers in Chemistry 6, no. : 1.

Journal article
Published: 01 February 2018 in Ecotoxicology and Environmental Safety
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Interaction with soil components is one of the key processes governing the fate of agrochemicals in the environment. In this work, we studied the adsorption / desorption and transport of mecoprop (methylchlorophenoxypropionic acid or MCPP) in four acid sandy-loam soils with different organic matter contents. Kinetics of adsorption and adsorption/desorption at equilibrium were studied in batch experiments, whereas transport was studied in laboratory columns. Adsorption and desorption were found to be linear or nearly-linear. The kinetics of mecoprop adsorption were relatively fast in all cases (less than 24h). Adsorption and desorption were adequately described by the linear and Freundlich models, with KF values that ranged from 0.7 to 8.8L(n) µmol(1-n)kg(-1) and KD values from 0.3 to 3.6Lkg(-1). The results of the transport experiments showed that the retention of mecoprop by soil was very low (less than 6.2%). The retention of mecoprop by the soils in all experiments increased with organic matter content. Overall, it was observed that mecoprop was weakly adsorbed by the soils, what would result in a high risk of leaching of this compound in the environment.

ACS Style

R. Paradelo; M. Conde-Cid; Elodie Martin Abad; Juan Carlos Nóvoa-Muñoz; D. Fernández-Calviño; M. Arias-Estévez. Retention and transport of mecoprop on acid sandy-loam soils. Ecotoxicology and Environmental Safety 2018, 148, 82 -88.

AMA Style

R. Paradelo, M. Conde-Cid, Elodie Martin Abad, Juan Carlos Nóvoa-Muñoz, D. Fernández-Calviño, M. Arias-Estévez. Retention and transport of mecoprop on acid sandy-loam soils. Ecotoxicology and Environmental Safety. 2018; 148 ():82-88.

Chicago/Turabian Style

R. Paradelo; M. Conde-Cid; Elodie Martin Abad; Juan Carlos Nóvoa-Muñoz; D. Fernández-Calviño; M. Arias-Estévez. 2018. "Retention and transport of mecoprop on acid sandy-loam soils." Ecotoxicology and Environmental Safety 148, no. : 82-88.

Communication
Published: 13 November 2017 in Water
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Batch-type experiments were used to study cadmium (Cd) and lead (Pb) sorption/desorption on forest soil, vineyard soil and pyritic material samples, on the by-products mussel shell, oak ash, pine bark and hemp waste, and on forest soil, vineyard soil and pyritic material amended with 48 t ha−1 of oak ash, mussel shell, and hemp waste. The main results were that the forest soil showed higher Cd and Pb retention than the vineyard soil and the pyritic material. Regarding the byproducts, sorption was in the following order: oak ash > mussel shell > hemp waste > pine bark, with desorption following an inverse sequence. The pH was the parameter that most influenced Cd and Pb sorption. Cd and Pb sorption curves showed better fitting to the Freundlich than to the Langmuir model, indicating the dominance of multilayer interactions. Oak ash and mussel shell were the amendments causing higher increase in Cd and Pb sorption on both soils and the pyritic material (close to 100% with the oak ash amendment), as well as more a pronounced decrease in desorption. These results could be used to favor an effective management of the by-products studied, which could retain Cd and Pb in soils and degraded areas, preventing water pollution.

ACS Style

Avelino Núñez-Delgado; Aurora Romar-Gasalla; Vanesa Santás-Miguel; María J. Fernández-Sanjurjo; Esperanza Álvarez-Rodríguez; Juan Carlos Nóvoa-Muñoz; Manuel Arias-Estévez. Cadmium and Lead Sorption/Desorption on Non-Amended and By-Product-Amended Soil Samples and Pyritic Material. Water 2017, 9, 886 .

AMA Style

Avelino Núñez-Delgado, Aurora Romar-Gasalla, Vanesa Santás-Miguel, María J. Fernández-Sanjurjo, Esperanza Álvarez-Rodríguez, Juan Carlos Nóvoa-Muñoz, Manuel Arias-Estévez. Cadmium and Lead Sorption/Desorption on Non-Amended and By-Product-Amended Soil Samples and Pyritic Material. Water. 2017; 9 (11):886.

Chicago/Turabian Style

Avelino Núñez-Delgado; Aurora Romar-Gasalla; Vanesa Santás-Miguel; María J. Fernández-Sanjurjo; Esperanza Álvarez-Rodríguez; Juan Carlos Nóvoa-Muñoz; Manuel Arias-Estévez. 2017. "Cadmium and Lead Sorption/Desorption on Non-Amended and By-Product-Amended Soil Samples and Pyritic Material." Water 9, no. 11: 886.

Journal article
Published: 01 November 2017 in Journal of Environmental Management
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The effects of adding two winery wastes, perlite waste (PW) and bentonite waste (BW), to an acid vineyard soil were assessed using some chemical and biological soil properties in a field study that lasted 18 months. The addition of PW (up to 81 Mg ha-1) had neither significant nor permanent effects on soil characteristics such as the pH, organic matter content or nutrient concentrations, the amounts of copper or zinc, or the electrical conductivity. Moreover, no persistent negative effects were found on the enzymatic activities after PW application. In contrast, soil that was amended with up to 71 Mg BW ha-1 showed increases in its soil pH values, exchangeable potassium and water soluble potassium and phosphorus contents. In addition, it caused significant increases in the electrical conductivity and water-soluble Cu. In addition, the phosphomonoesterase enzymatic activity decreased significantly (up to 28%) in response to the amendment with 71 Mg BW ha-1. These results showed that adding BW and PW to the soil may be a good agronomic practice for recycling these types of wastes. However, in the case of PW, its use as a soil amendment must be performed with caution to control its possible harmful effects.

ACS Style

Isabel Rodríguez-Salgado; Paula Pérez-Rodríguez; Antía Gómez-Armesto; Montserrat Díaz-Raviña; Juan Carlos Nóvoa-Muñoz; Manuel Arias-Estévez; David Fernández-Calviño. Modification of chemical properties, Cu fractionation and enzymatic activities in an acid vineyard soil amended with winery wastes: A field study. Journal of Environmental Management 2017, 202, 167 -177.

AMA Style

Isabel Rodríguez-Salgado, Paula Pérez-Rodríguez, Antía Gómez-Armesto, Montserrat Díaz-Raviña, Juan Carlos Nóvoa-Muñoz, Manuel Arias-Estévez, David Fernández-Calviño. Modification of chemical properties, Cu fractionation and enzymatic activities in an acid vineyard soil amended with winery wastes: A field study. Journal of Environmental Management. 2017; 202 ():167-177.

Chicago/Turabian Style

Isabel Rodríguez-Salgado; Paula Pérez-Rodríguez; Antía Gómez-Armesto; Montserrat Díaz-Raviña; Juan Carlos Nóvoa-Muñoz; Manuel Arias-Estévez; David Fernández-Calviño. 2017. "Modification of chemical properties, Cu fractionation and enzymatic activities in an acid vineyard soil amended with winery wastes: A field study." Journal of Environmental Management 202, no. : 167-177.