Intra-annual trends of fungicide residues in waters from vineyard areas in La Rioja region of northern Spain

  1. Herrero-Hernández, E. 1
  2. Pose-Juan, E. 1
  3. Sánchez-Martín, M.J. 1
  4. Andrades, M.S. 2
  5. Rodríguez-Cruz, M.S. 1
  1. 1 Instituto de Recursos Naturales y Agrobiología de Salamanca
    info

    Instituto de Recursos Naturales y Agrobiología de Salamanca

    Salamanca, España

    ROR https://ror.org/051p0fy59

  2. 2 Universidad de La Rioja
    info

    Universidad de La Rioja

    Logroño, España

    ROR https://ror.org/0553yr311

Revista:
Environmental Science and Pollution Research

ISSN: 0944-1344

Año de publicación: 2016

Volumen: 23

Número: 22

Páginas: 22924-22936

Tipo: Artículo

DOI: 10.1007/S11356-016-7497-0 SCOPUS: 2-s2.0-84984839709 WoS: WOS:000387602800062 GOOGLE SCHOLAR

Otras publicaciones en: Environmental Science and Pollution Research

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Resumen

The temporal trends of fungicides in surface and ground water in 90 samples, including both surface waters (12) and ground waters (78) from an extensive vineyard area located in La Rioja (Spain), were examined between September 2010 and September 2011. Fungicides are used in increasing amounts on vines in many countries, and they may reach the water resources. However, few data have been published on fungicides in waters, with herbicides being the most frequently monitored compounds. The presence, distribution and year-long evolution of 17 fungicides widely used in the region and a degradation product were evaluated in waters during four sampling campaigns. All the fungicides included in the study were detected at one or more of the points sampled during the four campaigns. Metalaxyl, its metabolite CGA-92370, penconazole and tebuconazole were the fungicides detected in the greatest number of samples, although myclobutanil, CGA-92370 and triadimenol were detected at the highest concentrations. The highest levels of individual fungicides were found in Rioja Alavesa, with concentrations of up to 25.52 μg L−1, and more than 40 % of the samples recorded a total concentration of >0.5 μg L−1. More than six fungicides were positively identified in a third of the ground and surface waters in all the sampling campaigns. There were no significant differences between the results obtained in the four sampling campaigns and corroborated a pattern of diffuse contamination from the use of fungicides. The results confirm that natural waters in the study area are extremely vulnerable to contamination by fungicides and highlight the need to implement strategies to prevent and control water contamination by these compounds. © 2016 Springer-Verlag Berlin Heidelberg