Combined pollution of copper nanoparticles and atrazine in soil: Effects on dissipation of the pesticide and on microbiological community profiles

Primer Autor
Tortella, G. R.
Co-autores
Parada, J.#Rubilar, O.#Diez, M. C.#Cea, M.#Sant'Ana da Silva, A.#Rodriguez-Rodriguez, C. E.
Título
Combined pollution of copper nanoparticles and atrazine in soil: Effects on dissipation of the pesticide and on microbiological community profiles
Editorial
ELSEVIER
Revista
JOURNAL OF HAZARDOUS MATERIALS
Lenguaje
en
Resumen
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.
Tipo de Recurso
Artículo original
Description
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.
Este trabajo fue financiado por el proyecto FONDECYT No 1161713 y parcialmente financiado por Vicerrectorla de Investigación y Postgrado UFRO DI17-1002 y DI17-2015, Universidad de Costa Rica (proyecto 802-B6-137), y CONICYT/FONDAP/15130015.
doi
10.1016/j.jhazmat.2018.08.042
Formato Recurso
pdf
Palabras Claves
Copper nanoparticles# Atrazine# Combined pollution# Adsorption# Microbial Community
Ubicación del archivo
http://dx.doi.org/10.1016/j.jhazmat.2018.08.042
Categoría OCDE
Engineering, Environmental# Environmental Sciences
Materias
Nanopartículas de cobre# atrazina# Contaminación combinada# Adsorción# Comunidad microbiana
Disciplinas de la OCDE
Ciencias del suelo
Agronomía
Ciencias del Medio Ambiente
Id de Web of Science
WOS:000449125800024
Título de la cita (Recomendado-único)
Combined pollution of copper nanoparticles and atrazine in soil: Effects on dissipation of the pesticide and on microbiological community profiles
Identificador del recurso (Mandatado-único)
Artículo original
Versión del recurso (Recomendado-único)
version publicada
Editorial
ELSEVIER
Revista/Libro
JOURNAL OF HAZARDOUS MATERIALS
Categoría WOS
Ingeniería Ambiental# Ciencias Ambientales
ISSN
0304-3894
Idioma
en
Referencia del Financiador (Mandatado si es aplicable-repetible)
ANID FONDECYT 1161713#UFRO DI17-1002#UFRO DI17-2015#Universidad de Costa Rica 802-B6-137#ANID CONICYT FONDAP 15130015
ANID FONDECYT 1161713
UFRO VRIP DI17-1002
UFRO VRIP DI17-2015
Universidad de Costa Rica 802-B6-137
ANID CONICYT FONDAP 15130015
Descripción
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.
Formato
pdf
Tipo de ruta
hibrida#verde
Access Rights
metadata
Derechos de acceso
metadata
Página de inicio (Recomendado-único)
65
Página final (Recomendado-único)
74
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