Site-specific sediment quality values for the Gulf of Cádiz (Spain) and San Francisco bay (USA), using the sediment quality triad and multivariate analysis

Site-specific sediment quality values for the Gulf of Cádiz (Spain) and San Francisco bay (USA), using the sediment quality triad and multivariate analysis

 Sediment quality values need to be developed to help protect public health and the environment. Data derived from sediment chemistry, sediment toxicity tests and macrobenthic infaunal community structure from two separate integrative studies (sediment quality triad) conducted in the Gulf o...

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Autores principales: DelValls, TA, Chapman, PM
Formato: Online
Lenguaje:eng
Publicado: Iniversidad Autónoma de Baja California 1998
Acceso en línea:https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/753
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record_format ojs
institution Ciencias Marinas
collection OJS
language eng
format Online
author DelValls, TA
Chapman, PM
spellingShingle DelValls, TA
Chapman, PM
Site-specific sediment quality values for the Gulf of Cádiz (Spain) and San Francisco bay (USA), using the sediment quality triad and multivariate analysis
author_facet DelValls, TA
Chapman, PM
author_sort DelValls, TA
title Site-specific sediment quality values for the Gulf of Cádiz (Spain) and San Francisco bay (USA), using the sediment quality triad and multivariate analysis
title_short Site-specific sediment quality values for the Gulf of Cádiz (Spain) and San Francisco bay (USA), using the sediment quality triad and multivariate analysis
title_full Site-specific sediment quality values for the Gulf of Cádiz (Spain) and San Francisco bay (USA), using the sediment quality triad and multivariate analysis
title_fullStr Site-specific sediment quality values for the Gulf of Cádiz (Spain) and San Francisco bay (USA), using the sediment quality triad and multivariate analysis
title_full_unstemmed Site-specific sediment quality values for the Gulf of Cádiz (Spain) and San Francisco bay (USA), using the sediment quality triad and multivariate analysis
title_sort site-specific sediment quality values for the gulf of cádiz (spain) and san francisco bay (usa), using the sediment quality triad and multivariate analysis
description  Sediment quality values need to be developed to help protect public health and the environment. Data derived from sediment chemistry, sediment toxicity tests and macrobenthic infaunal community structure from two separate integrative studies (sediment quality triad) conducted in the Gulf of Cádiz and in San Francisco Bay were analyzed by multivariate statistical techniques (principal component analysis [PCA] and factor analysis) to identify the concentration ranges of the chemicals associated with adverse effects. Application of PCA-factor analysis to the data matrix for the Gulf of Cádiz showed that the three data types could be represented by five principal factors, whereas for San Francisco Bay, there were four principal factors. These factors, as well as chemical concentrations and biological effects, were used to establish site-specific sediment quality values for each area studied. Positive prevalence of these factors in the cases studied (seven stations in the Gulf of Cádiz and nine in San Francisco Bay) was used to establish the ranges of chemical concentrations associated with adverse effects. The values proposed for the Gulf of Cádiz, in terms of concentrations at or below which biological effects have been shown to be minimal, are (in mg kg–1 of dry sediment): chromium, 101.2; lead, 66.8; linear alkylbenzenesulphonate, 12.8; silver, 1.2; and mercury, 0.46. The values proposed for San Francisco Bay are (in mg kg–1 of dry sediment): zinc, 156; chromium, 110; nickel, 88; copper, 68; arsenic, 58; lead, 49; tin, 8.0; silver, 4.0; mercury, 0.37; PCBs, 0.057; and DDTs, 0.00224.
publisher Iniversidad Autónoma de Baja California
publishDate 1998
url https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/753
_version_ 1715724006754091008
spelling oai:cienciasmarinas.com.mx:article-7532019-05-17T18:28:24Z Site-specific sediment quality values for the Gulf of Cádiz (Spain) and San Francisco bay (USA), using the sediment quality triad and multivariate analysis Valores de calidad de sedimento específicos para el golfo de Cádiz (España) y la bahía de San Francisco (EUA), usando el método “triad” y el análisis multivariante DelValls, TA Chapman, PM sediment quality values integrative assessment sediment quality triad multivariate analysis (PCA-factor) marine pollution criterios de calidad de sedimentos métodos integrados análisis multivariante(PCA-factor) ecotoxicología polución marina  Sediment quality values need to be developed to help protect public health and the environment. Data derived from sediment chemistry, sediment toxicity tests and macrobenthic infaunal community structure from two separate integrative studies (sediment quality triad) conducted in the Gulf of Cádiz and in San Francisco Bay were analyzed by multivariate statistical techniques (principal component analysis [PCA] and factor analysis) to identify the concentration ranges of the chemicals associated with adverse effects. Application of PCA-factor analysis to the data matrix for the Gulf of Cádiz showed that the three data types could be represented by five principal factors, whereas for San Francisco Bay, there were four principal factors. These factors, as well as chemical concentrations and biological effects, were used to establish site-specific sediment quality values for each area studied. Positive prevalence of these factors in the cases studied (seven stations in the Gulf of Cádiz and nine in San Francisco Bay) was used to establish the ranges of chemical concentrations associated with adverse effects. The values proposed for the Gulf of Cádiz, in terms of concentrations at or below which biological effects have been shown to be minimal, are (in mg kg–1 of dry sediment): chromium, 101.2; lead, 66.8; linear alkylbenzenesulphonate, 12.8; silver, 1.2; and mercury, 0.46. The values proposed for San Francisco Bay are (in mg kg–1 of dry sediment): zinc, 156; chromium, 110; nickel, 88; copper, 68; arsenic, 58; lead, 49; tin, 8.0; silver, 4.0; mercury, 0.37; PCBs, 0.057; and DDTs, 0.00224. La protección de la salud pública así como la medioambiental plantea la necesidad de establecer valores de calidad de sedimento. Se ha utilizado la base de datos, resultado de un estudio integrado (sediment quality triad), de concentraciones de contaminantes, resultados de ensayos de toxicidad y estructura de la comunidad macrobentónica disponible en sedimentos del Golfo de Cádiz y en la Bahía de San Francisco, de manera conjunta y mediante el uso de técnicas estadísticas multivariantes (análisis de componentes principales y análisis de factores), con el objetivo de establecer las concentraciones de sustancias xenobióticas que están asociadas con el efecto biológico. La aplicación del análisis multivariante sobre la matriz de datos obtenidos en el Golfo de Cádiz muestra que las variables correspondientes a los tres tipos de datos utilizados pueden agruparse en cinco factores principales, mientras que en la Bahía de San Francisco, pudieron agruparse en cuatro factores. El valor positivo de aquellos componentes que incluyen concentraciones de contaminantes, junto con el efecto biológico en los distintos casos estudiados (siete estaciones seleccionadas en el Golfo de Cádiz y nueve en la Bahía de San Francisco), ha sido utilizado para establecer los intervalos de las concentraciones de contaminantes que se encuentran asociadas con daños biológicos. Los valores para el Golfo de Cádiz, en términos de las concentraciones a las cuales no se produce el efecto biológico o éste es mínimo, son (en mg kg–1 de peso seco de sedimento): cromo, 101.2; plomo, 66.8; alquilbencenosulfonato lineal, 12.8; plata, 1.2; y mercurio, 0.46. Los criterios para la Bahía de San Francisco son (en mg kg–1 de peso seco de sedimento): zinc, 156; cromo, 110; níquel, 88; cobre, 68; arsénico, 58; plomo, 49; estaño, 8.0; plata, 4.0; mercurio, 0.37; PCBs, 0.057; y DDTs: 0.00224. Iniversidad Autónoma de Baja California 1998-03-06 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article Artículo Arbitrado application/pdf https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/753 10.7773/cm.v24i3.753 Ciencias Marinas; Vol. 24 No. 3 (1998); 313-336 Ciencias Marinas; Vol. 24 Núm. 3 (1998); 313-336 2395-9053 0185-3880 eng https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/753/680

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