Toxicity bioassays in core sediments from the Bay of Santander, northern Spain

Coz, Alberto; Rodríguez-Obeso, O.; Alonso-Santurde, R.; Alvarez‐Guerra, Manuel; Andrés, A.; Viguri, Javier R.; Mantzavinos, Dionissios; Kalogerakis, Nicolas

doi:10.1016/j.envres.2007.05.009

Cited by 31 publications

(16 citation statements)

References 35 publications

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“…Therefore, they complement the chemical analysis of individual substances as their combined action of organisms, which is consistent with the trends in environmental analytics (Coz et al 2008, Niemirycz & Jankowska 2011. The commercial use of toxicity tests has been very popular in recent years, because of easy and fast way of identifying the hot-spots (when an investigation covers a large area) and selecting for further analysis only those samples that represent the location of potentially contaminated sites (Casado-Martínez et al 2006). This paper presents the results of the toxicity assessment of Gdańsk Basin sediments by the Microtox® test which applies bioluminescent marine bacteria Vibrio fischeri and geostatistical techniques for the estimation of the obtained results.…”

Section: Introductionmentioning

confidence: 69%

“…Toxicity tests provide a more direct way of assessing the potential adverse effects of impurities present in a complex matrix like bottom sediment (MoralesCaselles et al 2008). Therefore, they complement the chemical analysis of individual substances as their combined action of organisms, which is consistent with the trends in environmental analytics (Coz et al 2008, Niemirycz & Jankowska 2011. The commercial use of toxicity tests has been very popular in recent years, because of easy and fast way of identifying the hot-spots (when an investigation covers a large area) and selecting for further analysis only those samples that represent the location of potentially contaminated sites (Casado-Martínez et al 2006).…”

Section: Introductionmentioning

confidence: 80%

“…According to numerous studies (Coz et al 2008, Van den Brink & Kater 2006 on the toxicity of bottom sediments, toxicity is strongly related to persistent organic pollutants and heavy metals as well as sulfur compounds, to which Vibrio ficheri is exceptionally sensitive (Ricking et al 2002, Calace et al 2005. It has been proven that pollutants absorbed on sediment particles cause their toxicity, even when interstitial waters present no acute toxicity (Łukawska-Matuszewska et al 2009).…”

Section: Sediments Coresmentioning

confidence: 99%

“…The results presented as maps indicate the particularly endangered regions where further studies on the identification of chemicals responsible for the toxicity should be carried out. Considering different analytical procedures, the Basic Solid Phase Test (Azur Environmental 1998) corresponds to the toxicity of the entire sediment and has been commonly applied for marine sediments (Salizzato et al 1998, Lahr et al 2003, Vigano et al 2003, Coz et al 2008. It has also been approved as a standard government ecotoxicological bioassay in several countries like Canada, The Netherlands, France, Germany, Sweden and Spain (Keddy et al 1995, Park & Hee 2001.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Geostatistical methods for estimation of toxicity of marine bottom sediments based on the Gdańsk Basin area

Witt

Kobusińska

Maciak

et al. 2014

Oceanological and Hydrobiological Studies

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Toxicity assessment of environmental compartments, in particular sediments as a highly complex matrix, provides a more direct way to assess potential adverse effects of pollutants present in a sample in contrast to chemical analysis estimating only a quantitative level of xenobiotics. Interactions between chemicals, formations of derivatives and the influence of chemical properties of sediments such as the organic matter content causing the intensified sorption of hydrophobic pollutants suggest that a traditional approach to the sediment quality, based only on chemical analysis may be insufficient. The presented study describes the vertical and horizontal variability of toxicity of Gdańsk Basin sediments. Based on 128 surface sediments samples and using geostatistical methods, a prediction map for the EC50 parameter was created. This allowed the evaluation of the toxicity of the surface sediment layer at any selected point of the study area. The applied analysis can be functional for many other locations worldwide. In the present study, the hypothesis about the location of toxic sediments in the vicinity of Gdańsk Deep, outer Puck Bay and close to Vistula River mouth was further confirmed.

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Section: Introductionmentioning

confidence: 69%

Section: Introductionmentioning

confidence: 80%

Section: Sediments Coresmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Geostatistical methods for estimation of toxicity of marine bottom sediments based on the Gdańsk Basin area

Witt

Kobusińska

Maciak

et al. 2014

Oceanological and Hydrobiological Studies

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“…Análisis físicos y químicos de los sedimentos A cada muestra de sedimento se le determinó el pH con un potenciómetro marca "Hach" (SCOFI 1984) y el contenido de carbono orgánico total (COT) con un analizador elemental "OI Analytical". Se seleccionaron estos parámetros ya que pueden influir en la toxicidad y movilidad de los contaminantes (Coz et al 2008, Karlsson et al 2010). …”

Section: Muestreounclassified

Evaluación De La Toxicidad De Los Sedimentos Del Curso Alto Del Río Lerma, México

Carreño

Zarazua

Fall

et al. 2018

Rev. Int. Contam. Ambie.

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Palabras clave: microtox®, contaminación en agua RESUMEN El objetivo de este estudio fue determinar la toxicidad de los sedimentos del curso alto del río Lerma (CARL), Estado de México, por medio del ensayo Microtox® con el protocolo básico en la fase sólida. Se colectaron muestras de sedimento superficial en 23 sitios distribuidos sobre el CARL: 12 sobre el cauce del río y 11 en sus tributarios, durante dos campañas de muestreo en un periodo de un año. La concentración efectiva media (EC50) en Vibrio fischeri varió para los sedimentos riverinos entre 139 mg/L y 3588 mg/L y para los de las descargas fue entre 108 mg/L y 16436 mg/L. En general los sedimentos del CARL pueden clasificarse como extremadamente tóxicos, lo cual es un indicativo del impacto de las contribuciones antrópicas de origen doméstico e industrial que recibe este importante cuerpo de agua. Key words: microtox®, water pollution ABSTRACTThe aim of this study was to evaluate the toxicity of sediments in the upper course of the Lerma River (UCLR), in the State of Mexico by means of Microtox® test using the basic solid phase test protocol. The surface sediment samples were collected in 23 sites distributed following the main stream flow of the river: 12 on the river and 11 on its tributaries for two sampling campaigns in a one year period. Half maximal effective concentration (EC50) in Vibrio fischeri varied in the river sediment from 139 mg/L to 3588 mg/L and for the tributaries it varied between 108 mg/L to 16436 mg/L. In general, sediments of the UCLR can be classified as extremely toxics which show the impact of anthropogenic contributions that come from urban and industrial untreated discharges.

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A SOM‐based methodology for classifying air quality monitoring stations

Alvarez‐Guerra

Molina

Viguri

et al. 2011

Env Prog and Sustain Energy

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The application of mathematical tools can be necessary to provide an integrated analysis and interpretation of the abundant information that can be collected in air quality monitoring networks. This article develops a methodology based on the use of SelfOrganizing Map (SOM) artificial neural networks for integrating data about multiple measured pollutants to group monitoring stations according to their similar air quality. The proposed method considers the subsequent geographical mapping of the clusters of stations observed with the SOM, which can make it possible to detect geographically different areas but that share similar air pollution problems. This methodology is illustrated with its application to a case study in which 517 stations of the Spanish air quality monitoring network were classified considering simultaneously their levels of regulated pollutants in 2005, highlighting some implications of data normalization in the process. In particular, the use of legal limit values to normalize the concentrations of pollutants proved to be especially advisable. Results obtained with the SOM-based methodology, when compared to classifications based directly on legislation, provided more useful classifications for further air quality management actions, and revealed that these types of tools can facilitate the design of air pollution reduction programs by discovering different areas with similar problems.

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Toxicity bioassays in core sediments from the Bay of Santander, northern Spain

Cited by 31 publications

References 35 publications

Geostatistical methods for estimation of toxicity of marine bottom sediments based on the Gdańsk Basin area

Geostatistical methods for estimation of toxicity of marine bottom sediments based on the Gdańsk Basin area

Evaluación De La Toxicidad De Los Sedimentos Del Curso Alto Del Río Lerma, México

A SOM‐based methodology for classifying air quality monitoring stations

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