RT Journal Article
T1 Effects of pine bark amendment on the transport of sulfonamide antibiotics in soils
A1 Conde Cid, Manuel
A1 Fernández Calviño, David
A1 Fernández Sanjurjo, María J.
A1 Núñez Delgado, Avelino
A1 Álvarez Rodríguez, Esperanza
A1 Arias Estévez, Manuel
K1 Crop soils
K1 Pine bark
K1 Soil columns
K1 Sulfonamides
K1 Transport
AB In the present work, laboratory column experiments were carried out to study the effect of pine bark amendment (at doses of 0, 12, 48 and 96 Mg ha−1) on the transport of three sulfonamide antibiotics (sulfadiazine –SDZ-, sulfamethazine –SMT-, and sulfachloropyridazine –SCP-) through two crop soils. All three sulfonamides showed high mobility in the unamend soils, with absence of retention in most cases. However, some differences were detected regarding the degree of interactions between sulfonamides and soils, being higher for soil 1, which was attributed to its higher organic carbon content. For both soils, interactions with the antibiotics studied followed the sequence SDZ < SMT < SCP, indicating an increase as a function of the hydrophobicity of sulfonamides. Pine bark amendment significantly increased the retention of the three sulfonamides in both soils. Specifically, in the case of soil 1, the incorporation of the highest dose of pine bark (96 Mg ha−1) caused that retention increased from 0% to 70.3% for SDZ, from 2.7% to 71.3% for SMT, and from 0% to 85.4% for SCP. This effect of pine bark is mainly attributed to its high organic carbon content (48.6%), including substances with potential to interact and retain antibiotics, as well as to its acidic pH (4.5). Therefore, pine bark amendment would be an effective alternative to reduce the transport of sulfonamides in soils and, thus, decrease risks of passing to other environmental compartments, as well as harmful effects on the environment and public health.
PB Elsevier
YR 2020
FD 2020
LK https://hdl.handle.net/10347/38645
UL https://hdl.handle.net/10347/38645
LA eng
NO Conde-Cid, M., Fernández-Calviño, D., Fernández-Sanjurjo, M. J., Núñez-Delgado, A., Álvarez-Rodríguez, E., & Arias-Estévez, M. (2020). Effects of pine bark amendment on the transport of sulfonamide antibiotics in soils. Chemosphere (Oxford), 248, 1-8. https://doi.org/10.1016/j.chemosphere.2020.126041
NO This is the author’s version of the work. The definitive version was published in Chemosphere, vol. 248 (2020), available online at: https://doi.org/10.1016/j.chemosphere.2020.126041
NO This work was supported by the Spanish Ministry of Economy and Competitiveness [grant numbers CGL2015-67333-C2-1-R and CGL2015-67333-C2-2-R]. It also received funds from the European Regional Development Fund (ERDF) (FEDER in Spain), being a complement to the previous grants, without additional grant number. D. Fernández-Calviño holds a Ramón y Cajal contract (RYC-2016-20411) financed by the Spanish Ministry of Economy, Industry and Competitiveness. M. Conde-Cid holds a pre-doctoral contract (FPU15/0280, Spanish Government). The sponsors had not involvement in study design; in the collection, analysis and interpretation of data; in the writing of the report, and in the decision to submit the article for publication.
DS Minerva
RD 24 abr 2026