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Effects of pesticides and pharmaceuticals on biofilms in a highly impacted river

We investigated the effects of pharmaceuticals and pesticides detected in a Mediterranean river, on fluvial biofilms by translocation experiments performed under controlled conditions. Water was sampled from three sites along a pollution gradient. Biofilms grown in mesocosms containing relatively clean water were translocated to heavily polluted water. Several biofilm descriptors were measured before and after translocations. Fifty-seven pharmaceuticals and sixteen pesticides compounds were detected in river waters. The translocation from less to more polluted site was the most effective. Autotrophic biomass and peptidase increased while phosphatase and photosynthetic efficiency decreased. Multivariate analysis revealed that analgesics and anti-inflammatories significantly affected biofilm responses. Ibuprofen and paracetamol were associated with negative effects on photosynthesis, and with the decrease of the green algae/cyanobacteria ratio, while diclofenac was associated with phosphatase activity. The effects of these emerging compounds on biofilms structure and function may cause important alterations in river ecosystem functioning

Financial support was provided by the EU projects, MODELKEY (SSPI-CT-2003-511237-2) and KEYBIOEFFECTS (MRTN-CT-2006-035695), and the Spanish projects, SCARCE (Consolider-Ingenio CSD2009-00065), FLUMED-HOT-SPOTS(CGL2011-30151-C02-01) and VIECO (009/RN08/011)

© Environmental Pollution, 2013, vol. 178, p. 220-228

Elsevier

Manager: Ministerio de Ciencia e Innovación (Espanya)
Author: Proia, Lorenzo
Osorio, Victoria
Soley, S.
Köck-Schulmeyer, Marianne
Pérez, Sandra
Barceló i Cullerés, Damià
Romaní i Cornet, Anna M.
Sabater, Sergi
Date: 2013
Abstract: We investigated the effects of pharmaceuticals and pesticides detected in a Mediterranean river, on fluvial biofilms by translocation experiments performed under controlled conditions. Water was sampled from three sites along a pollution gradient. Biofilms grown in mesocosms containing relatively clean water were translocated to heavily polluted water. Several biofilm descriptors were measured before and after translocations. Fifty-seven pharmaceuticals and sixteen pesticides compounds were detected in river waters. The translocation from less to more polluted site was the most effective. Autotrophic biomass and peptidase increased while phosphatase and photosynthetic efficiency decreased. Multivariate analysis revealed that analgesics and anti-inflammatories significantly affected biofilm responses. Ibuprofen and paracetamol were associated with negative effects on photosynthesis, and with the decrease of the green algae/cyanobacteria ratio, while diclofenac was associated with phosphatase activity. The effects of these emerging compounds on biofilms structure and function may cause important alterations in river ecosystem functioning
Financial support was provided by the EU projects, MODELKEY (SSPI-CT-2003-511237-2) and KEYBIOEFFECTS (MRTN-CT-2006-035695), and the Spanish projects, SCARCE (Consolider-Ingenio CSD2009-00065), FLUMED-HOT-SPOTS(CGL2011-30151-C02-01) and VIECO (009/RN08/011)
Format: application/pdf
Citation: 021679
ISSN: 0269-7491
Document access: http://hdl.handle.net/10256/11553
Language: eng
Publisher: Elsevier
Collection: MICINN/PN 2012-2014/CGL2011-30151-C02-01
MICINN/PN 2009-2014/CSD2009-00065
Reproducció digital del document publicat a: http://dx.doi.org/10.1016/j.envpol.2013.02.022
Articles publicats (D-CCAA)
Is part of: © Environmental Pollution, 2013, vol. 178, p. 220-228
Rights: Tots els drets reservats
Subject: Biofilms -- Catalunya -- Llobregat (Curs d’aigua)
Biofilms -- Catalonia -- Llobregat (River)
Contaminants emergents en l’aigua
Emerging contaminants in water
Aigua -- Contaminació -- Catalunya
Water -- Pollution -- Catalonia
Plaguicides -- Aspectes ambientals
Pesticides -- Environmental aspects
Title: Effects of pesticides and pharmaceuticals on biofilms in a highly impacted river
Type: info:eu-repo/semantics/article
Repository: DUGiDocs

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