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DOI | 10.1016/J.JHAZMAT.2018.08.042 | ||||
Año | 2019 | ||||
Tipo | artículo de investigación |
Citas Totales
Autores Afiliación Chile
Instituciones Chile
% Participación
Internacional
Autores
Afiliación Extranjera
Instituciones
Extranjeras
Copper nanoparticles (NCu) have been proposed as an antimicrobial agent in agriculture. Therefore, NCu may interact with numerous pollutants including pesticides. Little is known about the combined effects of NCu and pesticides in soil. This study aimed at assessing the impact of NCu combined with the herbicide atrazine (ATZ) on soil. We focused on assessing the adsorption and dissipation of ATZ in the presence of NCu and the changes in microbial community profiles. First, ATZ adsorption isotherms (described using the Freundlich equation) were evaluated. After that, soil samples were spiked with NCu (40-60 nm) at 0.05 and 0.15% w/w and ATZ (3 mg a.i kg(-1)) and incubated for 30 days. The results showed that ATZ adsorption is favored by the presence of NCu. On the other hand, NCu at 0.15% w/w caused a significant decrease in ATZ dissipation, increasing its half-life from 6 to 37 days. Microbial community profiles (bacteria, fungi and nitrifying bacteria) remained relatively stable throughout the evaluated period. Therefore, our findings suggest that NCu can increase the persistence of ATZ in soil, which may be mostly associated to physical-chemical interaction with soil particles more than a microbial impact.
Ord. | Autor | Género | Institución - País |
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1 | PARADA-CARCAMO, JAVIERA | Mujer |
Universidad de La Frontera - Chile
Ctr Excelencia Invest Biotecnol Aplicada Medio Am - Chile |
2 | RUBILAR-ARANEDA, OLGA MARGARITA | Mujer |
Universidad de La Frontera - Chile
Ctr Excelencia Invest Biotecnol Aplicada Medio Am - Chile Centro de Excelencia en Investigación Biotecnológica Aplicada al Medio Ambiente (CIBAMA) - Chile |
3 | DIEZ-JEREZ, MARIA CRISTINA | Mujer |
Universidad de La Frontera - Chile
Centro de Excelencia en Investigación Biotecnológica Aplicada al Medio Ambiente (CIBAMA) - Chile |
4 | CEA-LEMUS, MARA XIMENA | Mujer |
Universidad de La Frontera - Chile
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5 | da Silva, Ayla Sant'Ana | Mujer |
Minist Sci Technol Innovat & Commun - Brasil
UNIV FED RIO DE JANEIRO - Brasil National Institute of Technology - INT - Brasil Universidade Federal do Rio de Janeiro - Brasil National Institute of Technology - Brasil |
6 | Rodriguez-Rodriguez, Carlos E. | Hombre |
UNIV COSTA RICA - Costa Rica
Universidad de Costa Rica - Costa Rica |
7 | Tortella, Gonzalo R. | Hombre |
Universidad de La Frontera - Chile
Ctr Excelencia Invest Biotecnol Aplicada Medio Am - Chile Centro de Excelencia en Investigación Biotecnológica Aplicada al Medio Ambiente (CIBAMA) - Chile |
Fuente |
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FONDECYT |
Universidad de Costa Rica |
Fondo Nacional de Desarrollo Científico y Tecnológico |
Fondo Nacional de Desarrollo Científico, Tecnológico y de Innovación Tecnológica |
Fondo Nacional de Desarrollo CientÃfico y Tecnológico |
Vicerrectorla de Investigacion y PostgradoUFRO |
Vicerrectoría de Investigación y Postgrado UFRO |
Agradecimiento |
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This works was financed by FONDECYT project No 1161713 and partially financed by Vicerrectorla de Investigacion y PostgradoUFRO DI17-1002 and DI17-2015, Universidad de Costa Rica (project 802-B6-137), and CONICYT/FONDAP/15130015. |
This works was financed by FONDECYT project No 1161713 and partially financed by Vicerrectoría de Investigación y PostgradoUFRO DI17-1002 and DI17-2015, Universidad de Costa Rica (project 802-B6-137), and CONICYT/FONDAP/15130015. |